portfolio view

2026-03-18 23:20:32 +01:00
parent e815c02f70
commit 908206b5cd
104 changed files with 3755 additions and 3689 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,3 @@
-
 stages:
  - build
  - publish
@@ -131,6 +130,26 @@ build-auth-view:
      changes:
        - auth-view/**/*

+build-portfolio-view:
+  stage: build
+  image: node:22-alpine
+  cache:
+    key: "${CI_COMMIT_REF_SLUG}-portfolio-view"
+    paths:
+      - portfolio-view/node_modules
+  script:
+    - cd portfolio-view
+    - npm ci
+    - npm run build
+  artifacts:
+    paths:
+      - portfolio-view/dist
+    expire_in: 1h
+  rules:
+    - if: $CI_COMMIT_BRANCH == "main"
+      changes:
+        - portfolio-view/**/*
+
 # ══════════════════════════════════════════════════════════
 #  PUBLISH DOCKER IMAGES
 # ══════════════════════════════════════════════════════════
@@ -249,6 +268,25 @@ publish-auth-view:
      changes:
        - auth-view/**/*

+publish-portfolio-view:
+  stage: publish
+  image: docker:27
+  services:
+    - docker:27-dind
+  variables:
+    DOCKER_TLS_CERTDIR: ""
+  before_script:
+    - echo "$CI_REGISTRY_PASSWORD" | docker login $CI_REGISTRY -u $CI_REGISTRY_USER --password-stdin
+  script:
+    - docker build -t $REGISTRY/portfolio-view:${CI_COMMIT_SHORT_SHA} -t $REGISTRY/portfolio-view:latest -f portfolio-view/docker/Dockerfile portfolio-view/
+    - docker push $REGISTRY/portfolio-view:${CI_COMMIT_SHORT_SHA}
+    - docker push $REGISTRY/portfolio-view:latest
+  needs: [build-portfolio-view]
+  rules:
+    - if: $CI_COMMIT_BRANCH == "main"
+      changes:
+        - portfolio-view/**/*
+
 # ══════════════════════════════════════════════════════════
 #  DEPLOY TO VPS
 # ══════════════════════════════════════════════════════════
@@ -281,6 +319,7 @@ deploy-rag:
        cd /opt/services
        export CI_COMMIT_SHORT_SHA=${CI_COMMIT_SHORT_SHA}
        docker compose -f docker-compose.yml -f docker-compose.prod.yml pull rag-service
+        curl -s http://localhost:8500/v1/health/state/critical | jq -r '.[].ServiceID' | xargs -I{} curl -X PUT http://localhost:8500/v1/agent/service/deregister/{}
        docker compose -f docker-compose.yml -f docker-compose.prod.yml up -d rag-service
        docker image prune -af
      ENDSSH
@@ -300,6 +339,7 @@ deploy-gateway:
        cd /opt/services
        export CI_COMMIT_SHORT_SHA=${CI_COMMIT_SHORT_SHA}
        docker compose -f docker-compose.yml -f docker-compose.prod.yml pull gateway-service
+        curl -s http://localhost:8500/v1/health/state/critical | jq -r '.[].ServiceID' | xargs -I{} curl -X PUT http://localhost:8500/v1/agent/service/deregister/{}
        docker compose -f docker-compose.yml -f docker-compose.prod.yml up -d gateway-service
        docker image prune -af
      ENDSSH
@@ -319,6 +359,7 @@ deploy-analytics:
        cd /opt/services
        export CI_COMMIT_SHORT_SHA=${CI_COMMIT_SHORT_SHA}
        docker compose -f docker-compose.yml -f docker-compose.prod.yml pull analytics-service
+        curl -s http://localhost:8500/v1/health/state/critical | jq -r '.[].ServiceID' | xargs -I{} curl -X PUT http://localhost:8500/v1/agent/service/deregister/{}
        docker compose -f docker-compose.yml -f docker-compose.prod.yml up -d analytics-service
        docker image prune -af
      ENDSSH
@@ -380,6 +421,25 @@ deploy-auth-view:
        docker image prune -af
      ENDSSH

+deploy-portfolio-view:
+  <<: *deploy_setup
+  needs: [publish-portfolio-view]
+  rules:
+    - if: $CI_COMMIT_BRANCH == "main"
+      changes:
+        - portfolio-view/**/*
+  script:
+    - |
+      ssh $VPS_USER@$VPS_HOST << ENDSSH
+        set -e
+        echo "$CI_REGISTRY_PASSWORD" | docker login registry.gitlab.com -u "$CI_REGISTRY_USER" --password-stdin
+        cd /opt/services
+        export CI_COMMIT_SHORT_SHA=${CI_COMMIT_SHORT_SHA}
+        docker compose -f docker-compose.yml -f docker-compose.prod.yml pull portfolio-view
+        docker compose -f docker-compose.yml -f docker-compose.prod.yml up -d portfolio-view
+        docker image prune -af
+      ENDSSH
+
 # Deploy all services at once (manual trigger)
 deploy-all:
  <<: *deploy_setup
--- a/analytics-service/src/main/resources/application.yml
+++ b/analytics-service/src/main/resources/application.yml
@@ -43,6 +43,8 @@ spring:
        prefer-ip-address: true
        instance-id: ${spring.application.name}:${random.value}
        deregister-critical-service-after: 1m
+        lifecycle:
+          enabled: true

 analytics:
  kafka:
--- a/gateway-service/src/main/resources/application.yml
+++ b/gateway-service/src/main/resources/application.yml
@@ -54,6 +54,8 @@ spring:
        prefer-ip-address: true
        instance-id: ${spring.application.name}:${random.value}
        deregister-critical-service-after: 1m
+        lifecycle:
+          enabled: true

    gateway:
      server:
--- a/portfolio-view/.gitignore
+++ b/portfolio-view/.gitignore
@@ -0,0 +1,25 @@
+# Dependencies
+node_modules/
+.pnp
+.pnp.js
+
+# Build output
+dist/
+dist-ssr/
+
+# Editor
+.vscode/
+.idea/
+
+# Logs
+*.log
+npm-debug.log*
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# OS
+.DS_Store
+Thumbs.db
--- a/portfolio-view/.mvn/wrapper/maven-wrapper.properties
+++ b/portfolio-view/.mvn/wrapper/maven-wrapper.properties
--- a/portfolio-view/docker/Dockerfile
+++ b/portfolio-view/docker/Dockerfile
@@ -0,0 +1,11 @@
+FROM node:22-alpine AS build
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM nginx:alpine
+COPY docker/nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /app/dist /usr/share/nginx/html
+EXPOSE 80
--- a/portfolio-view/docker/nginx.conf
+++ b/portfolio-view/docker/nginx.conf
@@ -0,0 +1,9 @@
+server {
+    listen 80;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}
--- a/portfolio-view/index.html
+++ b/portfolio-view/index.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en" class="dark">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="description" content="Alexander — Java / Fullstack Developer. Switzerland, Bern. Spring Boot, React, AI." />
+    <title>Alexander — Java / Fullstack Developer</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>
--- a/portfolio-view/package-lock.json
+++ b/portfolio-view/package-lock.json
--- a/portfolio-view/package.json
+++ b/portfolio-view/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "portfolio-view",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/vite": "^4.0.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@vitejs/plugin-react": "^4.3.4",
+    "tailwindcss": "^4.0.0",
+    "typescript": "~5.7.2",
+    "vite": "^6.0.5"
+  }
+}
--- a/portfolio-view/src/App.tsx
+++ b/portfolio-view/src/App.tsx
@@ -0,0 +1,21 @@
+import { Header } from './components/layout/Header'
+import { Footer } from './components/layout/Footer'
+import { HeroSection } from './components/hero/HeroSection'
+import { ProjectsSection } from './components/projects/ProjectsSection'
+import { ChatWidget } from './components/chat/ChatWidget'
+
+function App() {
+  return (
+    <div className="min-h-screen bg-zinc-950 text-zinc-50">
+      <Header />
+      <main>
+        <HeroSection />
+        <ProjectsSection />
+      </main>
+      <Footer />
+      <ChatWidget />
+    </div>
+  )
+}
+
+export default App
--- a/portfolio-view/src/components/chat/ChatInput.tsx
+++ b/portfolio-view/src/components/chat/ChatInput.tsx
@@ -0,0 +1,67 @@
+import { useState, useRef, type KeyboardEvent } from 'react'
+
+interface ChatInputProps {
+  onSend: (message: string) => void
+  disabled: boolean
+}
+
+export function ChatInput({ onSend, disabled }: ChatInputProps) {
+  const [value, setValue] = useState('')
+  const textareaRef = useRef<HTMLTextAreaElement>(null)
+
+  const handleSend = () => {
+    const trimmed = value.trim()
+    if (!trimmed || disabled) return
+    onSend(trimmed)
+    setValue('')
+    if (textareaRef.current) {
+      textareaRef.current.style.height = 'auto'
+    }
+  }
+
+  const handleKeyDown = (e: KeyboardEvent<HTMLTextAreaElement>) => {
+    if (e.key === 'Enter' && !e.shiftKey) {
+      e.preventDefault()
+      handleSend()
+    }
+  }
+
+  const handleInput = () => {
+    const el = textareaRef.current
+    if (!el) return
+    el.style.height = 'auto'
+    el.style.height = `${Math.min(el.scrollHeight, 120)}px`
+  }
+
+  return (
+    <div className="flex items-end gap-2 p-3 border-t border-zinc-800 bg-zinc-950/50">
+      <textarea
+        ref={textareaRef}
+        value={value}
+        onChange={(e) => setValue(e.target.value)}
+        onKeyDown={handleKeyDown}
+        onInput={handleInput}
+        disabled={disabled}
+        rows={1}
+        placeholder="Ask me about my experience, projects, or tech stack..."
+        className="flex-1 resize-none bg-zinc-800/60 border border-zinc-700 rounded-md px-3 py-2 text-sm text-zinc-100 placeholder-zinc-600 font-body focus:outline-none focus:border-accent/50 focus:ring-1 focus:ring-accent/20 transition-colors disabled:opacity-40 disabled:cursor-not-allowed min-h-[38px] max-h-[120px] leading-relaxed"
+      />
+      <button
+        onClick={handleSend}
+        disabled={disabled || !value.trim()}
+        aria-label="Send message"
+        className="shrink-0 w-9 h-9 flex items-center justify-center rounded-md bg-accent text-zinc-950 hover:bg-accent-hover transition-colors disabled:opacity-30 disabled:cursor-not-allowed"
+      >
+        <svg width="15" height="15" viewBox="0 0 15 15" fill="none">
+          <path
+            d="M7.5 1v13M1 7.5l6.5-6.5 6.5 6.5"
+            stroke="currentColor"
+            strokeWidth="1.5"
+            strokeLinecap="round"
+            strokeLinejoin="round"
+          />
+        </svg>
+      </button>
+    </div>
+  )
+}
--- a/portfolio-view/src/components/chat/ChatMessage.tsx
+++ b/portfolio-view/src/components/chat/ChatMessage.tsx
@@ -0,0 +1,35 @@
+import type { ChatMessageType } from '../../types'
+
+interface ChatMessageProps {
+  message: ChatMessageType
+}
+
+export function ChatMessage({ message }: ChatMessageProps) {
+  const isUser = message.role === 'user'
+
+  return (
+    <div className={`flex ${isUser ? 'justify-end' : 'justify-start'} mb-3`}>
+      {!isUser && (
+        <div className="shrink-0 w-6 h-6 rounded-full bg-accent/20 border border-accent/30 flex items-center justify-center mr-2 mt-0.5">
+          <svg width="12" height="12" viewBox="0 0 12 12" fill="none">
+            <circle cx="6" cy="6" r="3" fill="#22d3ee" />
+            <circle cx="6" cy="6" r="5.5" stroke="#22d3ee" strokeOpacity="0.4" />
+          </svg>
+        </div>
+      )}
+
+      <div
+        className={`max-w-[80%] px-3 py-2 rounded-lg text-sm leading-relaxed font-body ${
+          isUser
+            ? 'bg-accent/15 text-zinc-100 border border-accent/20'
+            : 'bg-zinc-800 text-zinc-200 border border-zinc-700'
+        }`}
+      >
+        {message.content}
+        {message.isStreaming && (
+          <span className="inline-block w-1 h-3.5 bg-accent ml-0.5 align-text-bottom animate-pulse" />
+        )}
+      </div>
+    </div>
+  )
+}
--- a/portfolio-view/src/components/chat/ChatWidget.tsx
+++ b/portfolio-view/src/components/chat/ChatWidget.tsx
@@ -0,0 +1,213 @@
+import { useState, useRef, useEffect, useCallback } from 'react'
+import type { ChatMessageType } from '../../types'
+import { useHrGuestAuth } from '../../hooks/useHrGuestAuth'
+import { createChat, streamChatQuery } from '../../services/api'
+import { ChatMessage } from './ChatMessage'
+import { ChatInput } from './ChatInput'
+
+type ChatStatus = 'idle' | 'creating' | 'ready' | 'error'
+
+export function ChatWidget() {
+  const [isOpen, setIsOpen] = useState(false)
+  const [messages, setMessages] = useState<ChatMessageType[]>([])
+  const [chatId, setChatId] = useState<string | null>(null)
+  const [chatStatus, setChatStatus] = useState<ChatStatus>('idle')
+  const [isSending, setIsSending] = useState(false)
+
+  const { token, isLoading: tokenLoading, error: tokenError } = useHrGuestAuth()
+  const messagesEndRef = useRef<HTMLDivElement>(null)
+  const abortRef = useRef<(() => void) | null>(null)
+
+  // Auto-scroll to latest message
+  useEffect(() => {
+    messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' })
+  }, [messages])
+
+  // Create chat session when widget opens and token is available
+  useEffect(() => {
+    if (!isOpen || !token || chatId || chatStatus !== 'idle') return
+
+    setChatStatus('creating')
+    createChat(token)
+      .then((id) => {
+        setChatId(id)
+        setChatStatus('ready')
+      })
+      .catch(() => setChatStatus('error'))
+  }, [isOpen, token, chatId, chatStatus])
+
+  const handleSend = useCallback(
+    (text: string) => {
+      if (!token || !chatId || isSending) return
+
+      const userMsg: ChatMessageType = {
+        id: `u-${Date.now()}`,
+        role: 'user',
+        content: text,
+      }
+      const assistantMsgId = `a-${Date.now()}`
+      const assistantMsg: ChatMessageType = {
+        id: assistantMsgId,
+        role: 'assistant',
+        content: '',
+        isStreaming: true,
+      }
+
+      setMessages((prev) => [...prev, userMsg, assistantMsg])
+      setIsSending(true)
+
+      const abort = streamChatQuery(
+        chatId,
+        text,
+        token,
+        (chunk) => {
+          setMessages((prev) =>
+            prev.map((m) =>
+              m.id === assistantMsgId
+                ? { ...m, content: m.content + chunk }
+                : m
+            )
+          )
+        },
+        () => {
+          setMessages((prev) =>
+            prev.map((m) =>
+              m.id === assistantMsgId ? { ...m, isStreaming: false } : m
+            )
+          )
+          setIsSending(false)
+          abortRef.current = null
+        },
+        (err) => {
+          setMessages((prev) =>
+            prev.map((m) =>
+              m.id === assistantMsgId
+                ? { ...m, content: `Error: ${err.message}`, isStreaming: false }
+                : m
+            )
+          )
+          setIsSending(false)
+          abortRef.current = null
+        }
+      )
+
+      abortRef.current = abort
+    },
+    [token, chatId, isSending]
+  )
+
+  // Clean up on unmount
+  useEffect(() => {
+    return () => {
+      abortRef.current?.()
+    }
+  }, [])
+
+  const isInputDisabled =
+    tokenLoading ||
+    !!tokenError ||
+    chatStatus !== 'ready' ||
+    isSending
+
+  const statusText = (() => {
+    if (tokenLoading) return 'Connecting...'
+    if (tokenError) return 'Connection failed'
+    if (chatStatus === 'creating') return 'Starting session...'
+    if (chatStatus === 'error') return 'Session error'
+    return null
+  })()
+
+  return (
+    <>
+      {/* Floating toggle button */}
+      <button
+        onClick={() => setIsOpen((v) => !v)}
+        aria-label={isOpen ? 'Close chat' : 'Open chat'}
+        className="fixed bottom-6 right-6 z-50 w-14 h-14 rounded-full bg-accent text-zinc-950 shadow-lg shadow-accent/20 hover:bg-accent-hover transition-all duration-200 flex items-center justify-center glow-accent"
+      >
+        {isOpen ? (
+          <svg width="20" height="20" viewBox="0 0 20 20" fill="none">
+            <path
+              d="M4 4l12 12M16 4L4 16"
+              stroke="currentColor"
+              strokeWidth="2"
+              strokeLinecap="round"
+            />
+          </svg>
+        ) : (
+          <svg width="22" height="22" viewBox="0 0 22 22" fill="none">
+            <path
+              d="M19 4H3a1 1 0 0 0-1 1v10a1 1 0 0 0 1 1h4l4 4 4-4h4a1 1 0 0 0 1-1V5a1 1 0 0 0-1-1z"
+              stroke="currentColor"
+              strokeWidth="1.8"
+              strokeLinecap="round"
+              strokeLinejoin="round"
+            />
+          </svg>
+        )}
+      </button>
+
+      {/* Chat panel */}
+      {isOpen && (
+        <div className="fixed bottom-24 right-6 z-50 w-80 sm:w-96 flex flex-col rounded-xl border border-zinc-800 bg-zinc-950 shadow-2xl shadow-black/60 overflow-hidden">
+          {/* Header */}
+          <div className="flex items-center justify-between px-4 py-3 border-b border-zinc-800 bg-zinc-900/80">
+            <div>
+              <p className="font-heading font-semibold text-sm text-white">
+                Ask about me
+              </p>
+              <p className="font-mono text-[10px] text-accent tracking-wider mt-0.5">
+                Powered by RAG
+              </p>
+            </div>
+            <div className="flex items-center gap-1.5">
+              <span
+                className={`w-1.5 h-1.5 rounded-full ${
+                  chatStatus === 'ready' ? 'bg-emerald-400' : 'bg-zinc-600 animate-pulse'
+                }`}
+              />
+              <span className="text-xs text-zinc-500 font-mono">
+                {chatStatus === 'ready' ? 'online' : 'connecting'}
+              </span>
+            </div>
+          </div>
+
+          {/* Messages */}
+          <div className="flex-1 overflow-y-auto chat-scroll px-3 py-4 min-h-[280px] max-h-[400px]">
+            {messages.length === 0 ? (
+              <div className="h-full flex flex-col items-center justify-center gap-3 text-center px-4">
+                <div className="w-10 h-10 rounded-full bg-accent/10 border border-accent/20 flex items-center justify-center">
+                  <svg width="18" height="18" viewBox="0 0 18 18" fill="none">
+                    <circle cx="9" cy="9" r="4" fill="#22d3ee" fillOpacity="0.6" />
+                    <circle cx="9" cy="9" r="7.5" stroke="#22d3ee" strokeOpacity="0.25" />
+                  </svg>
+                </div>
+                <p className="text-xs text-zinc-500 font-body leading-relaxed">
+                  Ask me about my experience,<br />
+                  projects, or tech stack.
+                </p>
+              </div>
+            ) : (
+              <>
+                {messages.map((msg) => (
+                  <ChatMessage key={msg.id} message={msg} />
+                ))}
+                <div ref={messagesEndRef} />
+              </>
+            )}
+          </div>
+
+          {/* Status banner */}
+          {statusText && (
+            <div className="px-4 py-1.5 bg-zinc-900/80 border-t border-zinc-800">
+              <p className="text-xs text-zinc-500 font-mono">{statusText}</p>
+            </div>
+          )}
+
+          {/* Input */}
+          <ChatInput onSend={handleSend} disabled={isInputDisabled} />
+        </div>
+      )}
+    </>
+  )
+}
--- a/portfolio-view/src/components/hero/HeroSection.tsx
+++ b/portfolio-view/src/components/hero/HeroSection.tsx
@@ -0,0 +1,113 @@
+export function HeroSection() {
+  return (
+    <section
+      id="hero"
+      className="relative min-h-screen flex items-center justify-center overflow-hidden"
+    >
+      {/* Background grid */}
+      <div
+        className="absolute inset-0 opacity-[0.03]"
+        style={{
+          backgroundImage:
+            'linear-gradient(#fafafa 1px, transparent 1px), linear-gradient(90deg, #fafafa 1px, transparent 1px)',
+          backgroundSize: '48px 48px',
+        }}
+      />
+
+      {/* Accent glow */}
+      <div className="absolute top-1/3 left-1/2 -translate-x-1/2 -translate-y-1/2 w-96 h-96 rounded-full bg-accent/5 blur-3xl pointer-events-none" />
+
+      <div className="relative z-10 max-w-4xl mx-auto px-6 py-24 text-center">
+        {/* Location badge */}
+        <div className="inline-flex items-center gap-2 px-3 py-1.5 mb-8 rounded-full border border-zinc-800 bg-zinc-900/60 text-xs text-zinc-400 font-mono tracking-wider">
+          <span className="w-1.5 h-1.5 rounded-full bg-accent animate-pulse" />
+          Switzerland, Bern
+        </div>
+
+        {/* Name */}
+        <h1 className="font-heading font-extrabold text-6xl md:text-8xl tracking-tight mb-4 leading-none">
+          <span className="text-white">Alexander</span>
+        </h1>
+
+        {/* Role */}
+        <p className="font-heading font-medium text-2xl md:text-3xl text-gradient mb-6 tracking-tight">
+          Java / Fullstack Developer
+        </p>
+
+        {/* Description */}
+        <p className="text-zinc-400 text-lg max-w-xl mx-auto mb-10 font-body leading-relaxed">
+          Building backend systems and intelligent applications with{' '}
+          <span className="text-zinc-200 font-mono text-base">Spring Boot</span>,{' '}
+          <span className="text-zinc-200 font-mono text-base">React</span>, and{' '}
+          <span className="text-zinc-200 font-mono text-base">AI</span>.
+        </p>
+
+        {/* CTA buttons */}
+        <div className="flex flex-wrap items-center justify-center gap-4">
+          <a
+            href="/static/cv.pdf"
+            className="inline-flex items-center gap-2.5 px-6 py-3 bg-accent text-zinc-950 font-heading font-semibold text-sm tracking-wide hover:bg-accent-hover transition-colors duration-200 rounded-sm glow-accent"
+          >
+            <svg width="16" height="16" viewBox="0 0 16 16" fill="none">
+              <path
+                d="M8 1v9M4 7l4 4 4-4M2 14h12"
+                stroke="currentColor"
+                strokeWidth="1.5"
+                strokeLinecap="round"
+                strokeLinejoin="round"
+              />
+            </svg>
+            Download CV
+          </a>
+
+          <a
+            href="https://github.com/Mirage74/post-hub-platform"
+            target="_blank"
+            rel="noopener noreferrer"
+            aria-label="GitHub repository"
+            className="inline-flex items-center gap-2.5 px-6 py-3 border border-zinc-700 text-zinc-300 font-heading font-medium text-sm tracking-wide hover:border-zinc-500 hover:text-white transition-all duration-200 rounded-sm"
+          >
+            <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0 1 12 6.844a9.59 9.59 0 0 1 2.504.337c1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.02 10.02 0 0 0 22 12.017C22 6.484 17.522 2 12 2z" />
+            </svg>
+            GitHub
+          </a>
+
+          <a
+            href="#"
+            aria-label="LinkedIn profile"
+            className="inline-flex items-center gap-2.5 px-6 py-3 border border-zinc-700 text-zinc-300 font-heading font-medium text-sm tracking-wide hover:border-zinc-500 hover:text-white transition-all duration-200 rounded-sm"
+          >
+            <svg width="16" height="16" viewBox="0 0 20 20" fill="currentColor">
+              <path d="M16.7 1.7H3.3C2.4 1.7 1.7 2.4 1.7 3.3v13.4c0 .9.7 1.6 1.6 1.6h13.4c.9 0 1.6-.7 1.6-1.6V3.3c0-.9-.7-1.6-1.6-1.6zM6.7 15H4.4V7.8h2.3V15zm-1.2-8.2c-.7 0-1.3-.6-1.3-1.3S4.8 4.2 5.5 4.2s1.3.6 1.3 1.3-.6 1.3-1.3 1.3zm10 8.2h-2.3v-3.5c0-.8 0-1.9-1.2-1.9s-1.3.9-1.3 1.8V15H8.4V7.8h2.2v1h.1c.3-.6 1-1.2 2.1-1.2 2.3 0 2.7 1.5 2.7 3.4V15z" />
+            </svg>
+            LinkedIn
+          </a>
+        </div>
+
+        {/* Scroll hint */}
+        <div className="mt-16 flex flex-col items-center gap-2 text-zinc-600 text-xs font-mono tracking-widest">
+          <span>SCROLL</span>
+          <svg
+            width="14"
+            height="20"
+            viewBox="0 0 14 20"
+            fill="none"
+            className="animate-bounce"
+          >
+            <rect
+              x="1"
+              y="1"
+              width="12"
+              height="18"
+              rx="6"
+              stroke="currentColor"
+              strokeWidth="1.5"
+            />
+            <circle cx="7" cy="6" r="1.5" fill="currentColor" className="animate-pulse" />
+          </svg>
+        </div>
+      </div>
+    </section>
+  )
+}
--- a/portfolio-view/src/components/layout/Footer.tsx
+++ b/portfolio-view/src/components/layout/Footer.tsx
@@ -0,0 +1,36 @@
+export function Footer() {
+  const year = new Date().getFullYear()
+
+  return (
+    <footer id="footer" className="border-t border-zinc-800 bg-zinc-950 py-10">
+      <div className="max-w-6xl mx-auto px-6 flex flex-col md:flex-row items-center justify-between gap-4">
+        <p className="text-zinc-500 text-sm font-body">
+          © {year} Alexander — Java / Fullstack Developer
+        </p>
+
+        <div className="flex items-center gap-6">
+          <a
+            href="https://github.com/Mirage74/post-hub-platform"
+            target="_blank"
+            rel="noopener noreferrer"
+            aria-label="GitHub"
+            className="text-zinc-500 hover:text-accent transition-colors"
+          >
+            <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0 1 12 6.844a9.59 9.59 0 0 1 2.504.337c1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.02 10.02 0 0 0 22 12.017C22 6.484 17.522 2 12 2z" />
+            </svg>
+          </a>
+          <a
+            href="#"
+            aria-label="LinkedIn"
+            className="text-zinc-500 hover:text-accent transition-colors"
+          >
+            <svg width="20" height="20" viewBox="0 0 20 20" fill="currentColor">
+              <path d="M16.7 1.7H3.3C2.4 1.7 1.7 2.4 1.7 3.3v13.4c0 .9.7 1.6 1.6 1.6h13.4c.9 0 1.6-.7 1.6-1.6V3.3c0-.9-.7-1.6-1.6-1.6zM6.7 15H4.4V7.8h2.3V15zm-1.2-8.2c-.7 0-1.3-.6-1.3-1.3S4.8 4.2 5.5 4.2s1.3.6 1.3 1.3-.6 1.3-1.3 1.3zm10 8.2h-2.3v-3.5c0-.8 0-1.9-1.2-1.9s-1.3.9-1.3 1.8V15H8.4V7.8h2.2v1h.1c.3-.6 1-1.2 2.1-1.2 2.3 0 2.7 1.5 2.7 3.4V15z" />
+            </svg>
+          </a>
+        </div>
+      </div>
+    </footer>
+  )
+}
--- a/portfolio-view/src/components/layout/Header.tsx
+++ b/portfolio-view/src/components/layout/Header.tsx
@@ -0,0 +1,64 @@
+import { useState, useEffect } from 'react'
+
+const navLinks = [
+  { label: 'About', href: '#hero' },
+  { label: 'Projects', href: '#projects' },
+  { label: 'Contact', href: '#footer' },
+]
+
+export function Header() {
+  const [scrolled, setScrolled] = useState(false)
+
+  useEffect(() => {
+    const onScroll = () => setScrolled(window.scrollY > 24)
+    window.addEventListener('scroll', onScroll, { passive: true })
+    return () => window.removeEventListener('scroll', onScroll)
+  }, [])
+
+  return (
+    <header
+      className={`fixed top-0 left-0 right-0 z-50 transition-all duration-300 ${
+        scrolled
+          ? 'bg-zinc-950/90 backdrop-blur-md border-b border-zinc-800'
+          : 'bg-transparent'
+      }`}
+    >
+      <div className="max-w-6xl mx-auto px-6 h-16 flex items-center justify-between">
+        <a
+          href="#hero"
+          className="font-heading font-bold text-lg tracking-tight text-white hover:text-accent transition-colors"
+        >
+          Alexander<span className="text-accent">.</span>
+        </a>
+
+        <nav className="hidden md:flex items-center gap-8">
+          {navLinks.map((link) => (
+            <a
+              key={link.href}
+              href={link.href}
+              className="text-sm text-zinc-400 hover:text-white transition-colors font-body tracking-wide"
+            >
+              {link.label}
+            </a>
+          ))}
+        </nav>
+
+        <a
+          href="/static/cv.pdf"
+          className="hidden md:inline-flex items-center gap-2 px-4 py-2 text-sm font-medium border border-accent text-accent hover:bg-accent hover:text-zinc-950 transition-all duration-200 rounded-sm"
+        >
+          <span>Download CV</span>
+          <svg width="14" height="14" viewBox="0 0 14 14" fill="none">
+            <path
+              d="M7 1v8M3.5 5.5L7 9l3.5-3.5M2 12h10"
+              stroke="currentColor"
+              strokeWidth="1.5"
+              strokeLinecap="round"
+              strokeLinejoin="round"
+            />
+          </svg>
+        </a>
+      </div>
+    </header>
+  )
+}
--- a/portfolio-view/src/components/projects/ProjectCard.tsx
+++ b/portfolio-view/src/components/projects/ProjectCard.tsx
@@ -0,0 +1,114 @@
+import { useEffect, useRef } from 'react'
+import type { Project } from '../../types'
+
+interface ProjectCardProps {
+  project: Project
+  index: number
+}
+
+const INFRA_ICON = (
+  <svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
+    <rect x="2" y="3" width="20" height="14" rx="2" />
+    <path d="M8 21h8M12 17v4" strokeLinecap="round" />
+    <path d="M7 8h10M7 11h6" strokeLinecap="round" />
+  </svg>
+)
+
+const DEFAULT_ICON = (
+  <svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
+    <path d="M14.5 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7.5L14.5 2z" />
+    <polyline points="14 2 14 8 20 8" />
+    <line x1="16" y1="13" x2="8" y2="13" />
+    <line x1="16" y1="17" x2="8" y2="17" />
+    <line x1="10" y1="9" x2="8" y2="9" />
+  </svg>
+)
+
+export function ProjectCard({ project, index }: ProjectCardProps) {
+  const ref = useRef<HTMLDivElement>(null)
+
+  useEffect(() => {
+    const el = ref.current
+    if (!el) return
+
+    const observer = new IntersectionObserver(
+      ([entry]) => {
+        if (entry.isIntersecting) {
+          el.classList.add('visible')
+          observer.disconnect()
+        }
+      },
+      { threshold: 0.12 }
+    )
+    observer.observe(el)
+    return () => observer.disconnect()
+  }, [])
+
+  const delayClass = `reveal-delay-${Math.min(index + 1, 5)}`
+
+  return (
+    <div
+      ref={ref}
+      className={`reveal ${delayClass} group relative flex flex-col bg-zinc-900 border border-zinc-800 rounded-lg p-6 hover:border-zinc-700 hover:bg-zinc-900/80 transition-all duration-300`}
+    >
+      {/* Top: icon + title + demo link */}
+      <div className="flex items-start justify-between mb-4">
+        <div className="flex items-center gap-3">
+          <div className="text-accent/70 group-hover:text-accent transition-colors">
+            {project.isInfrastructure ? INFRA_ICON : DEFAULT_ICON}
+          </div>
+          <h3 className="font-heading font-semibold text-lg text-zinc-100 group-hover:text-white transition-colors">
+            {project.title}
+          </h3>
+        </div>
+
+        {project.demoUrl && (
+          <a
+            href={project.demoUrl}
+            target="_blank"
+            rel="noopener noreferrer"
+            aria-label={`Open ${project.title} demo`}
+            className="ml-2 shrink-0 text-zinc-600 hover:text-accent transition-colors"
+          >
+            <svg width="16" height="16" viewBox="0 0 16 16" fill="none">
+              <path
+                d="M6 2H2v12h12v-4M9 2h5v5M14 2L7 9"
+                stroke="currentColor"
+                strokeWidth="1.5"
+                strokeLinecap="round"
+                strokeLinejoin="round"
+              />
+            </svg>
+          </a>
+        )}
+      </div>
+
+      {/* Description */}
+      <p className="text-zinc-400 text-sm leading-relaxed mb-5 flex-1 font-body">
+        {project.description}
+      </p>
+
+      {/* Stack tags */}
+      <div className="flex flex-wrap gap-1.5 mt-auto">
+        {project.stack.map((tech) => (
+          <span
+            key={tech}
+            className="font-mono text-xs px-2 py-0.5 rounded-sm bg-zinc-800 text-zinc-400 border border-zinc-700/60 group-hover:border-zinc-600/60 transition-colors"
+          >
+            {tech}
+          </span>
+        ))}
+      </div>
+
+      {/* Demo badge */}
+      {project.demoUrl && (
+        <div className="absolute top-4 right-4">
+          <span className="inline-flex items-center gap-1 text-[10px] font-mono px-1.5 py-0.5 rounded-sm bg-accent/10 text-accent border border-accent/20">
+            <span className="w-1 h-1 rounded-full bg-accent" />
+            LIVE
+          </span>
+        </div>
+      )}
+    </div>
+  )
+}
--- a/portfolio-view/src/components/projects/ProjectsSection.tsx
+++ b/portfolio-view/src/components/projects/ProjectsSection.tsx
@@ -0,0 +1,73 @@
+import type { Project } from '../../types'
+import { ProjectCard } from './ProjectCard'
+
+const PROJECTS: Project[] = [
+  {
+    id: 'gateway',
+    title: 'Gateway Service',
+    description:
+      'API Gateway with JWT authentication, OAuth2 (Google, GitHub, Facebook), reactive routing, and per-user rate limiting built on Spring Cloud Gateway.',
+    stack: ['Java 25', 'Spring Boot 3.5', 'Spring Cloud Gateway', 'WebFlux', 'R2DBC', 'PostgreSQL', 'jjwt'],
+  },
+  {
+    id: 'rag',
+    title: 'RAG Service',
+    description:
+      'AI-powered chat with document context. Upload PDF/DOCX, vector semantic search, BM25 reranking, and real-time SSE streaming responses.',
+    stack: ['Java 25', 'Spring Boot 3.5', 'Spring AI', 'pgvector', 'Kafka', 'TikaDocumentReader'],
+    demoUrl: '/ragview/',
+  },
+  {
+    id: 'analytics',
+    title: 'Analytics Service',
+    description:
+      'Kafka consumer that aggregates platform events into PostgreSQL with a dynamic REST API supporting complex filtering and pagination.',
+    stack: ['Java 25', 'Spring Boot 3.5', 'Kafka', 'JPA', 'Flyway', 'JpaSpecificationExecutor'],
+    demoUrl: '/analyticsview/',
+  },
+  {
+    id: 'audio-foreign',
+    title: 'Audio Foreign',
+    description:
+      'Voice-based language learning app: speak — get instant AI feedback. Speech-to-text via Whisper, grammar correction via Claude, playback via ElevenLabs.',
+    stack: ['Node.js', 'Express', 'OpenAI Whisper', 'Anthropic Claude API', 'ElevenLabs TTS'],
+    demoUrl: '/deutsch/',
+  },
+  {
+    id: 'infra',
+    title: 'Infrastructure',
+    description:
+      'Monorepo DevOps: Docker Compose orchestration, GitLab CI/CD with path-based triggers, Nginx reverse proxy, Let\'s Encrypt SSL, and Consul service discovery.',
+    stack: ['Docker', 'Docker Compose', 'GitLab CI/CD', 'Nginx', 'Let\'s Encrypt', 'Consul'],
+    isInfrastructure: true,
+  },
+]
+
+export function ProjectsSection() {
+  return (
+    <section id="projects" className="py-24 px-6">
+      <div className="max-w-6xl mx-auto">
+        {/* Section header */}
+        <div className="mb-14">
+          <p className="font-mono text-xs text-accent tracking-widest mb-3 uppercase">
+            Work
+          </p>
+          <h2 className="font-heading font-bold text-4xl md:text-5xl text-white tracking-tight">
+            Projects
+          </h2>
+          <p className="mt-4 text-zinc-400 max-w-xl font-body text-base leading-relaxed">
+            Microservices platform — each service independently deployable, all
+            connected through the gateway.
+          </p>
+        </div>
+
+        {/* Grid */}
+        <div className="grid grid-cols-1 md:grid-cols-2 xl:grid-cols-3 gap-5">
+          {PROJECTS.map((project, index) => (
+            <ProjectCard key={project.id} project={project} index={index} />
+          ))}
+        </div>
+      </div>
+    </section>
+  )
+}
--- a/portfolio-view/src/hooks/useHrGuestAuth.ts
+++ b/portfolio-view/src/hooks/useHrGuestAuth.ts
@@ -0,0 +1,57 @@
+import { useState, useEffect, useRef } from 'react'
+import { fetchHrGuestToken } from '../services/api'
+
+const MAX_RETRIES = 3
+const RETRY_DELAY_MS = 3000
+
+interface HrGuestAuthResult {
+  token: string | null
+  isLoading: boolean
+  error: string | null
+}
+
+export function useHrGuestAuth(): HrGuestAuthResult {
+  const [token, setToken] = useState<string | null>(null)
+  const [isLoading, setIsLoading] = useState(true)
+  const [error, setError] = useState<string | null>(null)
+  const attemptsRef = useRef(0)
+  const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const mountedRef = useRef(true)
+
+  useEffect(() => {
+    mountedRef.current = true
+
+    const attempt = async () => {
+      if (!mountedRef.current) return
+      attemptsRef.current += 1
+
+      try {
+        const t = await fetchHrGuestToken()
+        if (!mountedRef.current) return
+        setToken(t)
+        setIsLoading(false)
+        setError(null)
+      } catch (err) {
+        if (!mountedRef.current) return
+
+        const message = err instanceof Error ? err.message : 'Unknown error'
+
+        if (attemptsRef.current < MAX_RETRIES) {
+          timeoutRef.current = setTimeout(attempt, RETRY_DELAY_MS)
+        } else {
+          setError(`Auth failed after ${MAX_RETRIES} attempts: ${message}`)
+          setIsLoading(false)
+        }
+      }
+    }
+
+    attempt()
+
+    return () => {
+      mountedRef.current = false
+      if (timeoutRef.current) clearTimeout(timeoutRef.current)
+    }
+  }, [])
+
+  return { token, isLoading, error }
+}
--- a/portfolio-view/src/index.css
+++ b/portfolio-view/src/index.css
@@ -0,0 +1,118 @@
+@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&family=JetBrains+Mono:wght@400;500&display=swap');
+
+@import "tailwindcss";
+
+@theme {
+  --font-heading: "Syne", sans-serif;
+  --font-body: "DM Sans", sans-serif;
+  --font-mono: "JetBrains Mono", monospace;
+
+  --color-accent: #22d3ee;
+  --color-accent-hover: #67e8f9;
+  --color-surface: #18181b;
+  --color-surface-2: #27272a;
+  --color-border: #3f3f46;
+}
+
+@layer base {
+  html {
+    scroll-behavior: smooth;
+  }
+
+  body {
+    background-color: #09090b;
+    color: #fafafa;
+    font-family: var(--font-body);
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+  }
+
+  h1, h2, h3, h4, h5, h6 {
+    font-family: var(--font-heading);
+  }
+
+  code, pre, .mono {
+    font-family: var(--font-mono);
+  }
+
+  * {
+    border-color: #3f3f46;
+  }
+
+  ::selection {
+    background-color: rgba(34, 211, 238, 0.25);
+    color: #fafafa;
+  }
+
+  ::-webkit-scrollbar {
+    width: 6px;
+  }
+
+  ::-webkit-scrollbar-track {
+    background: #09090b;
+  }
+
+  ::-webkit-scrollbar-thumb {
+    background: #3f3f46;
+    border-radius: 3px;
+  }
+
+  ::-webkit-scrollbar-thumb:hover {
+    background: #52525b;
+  }
+}
+
+/* Scroll-triggered animation */
+@keyframes fadeInUp {
+  from {
+    opacity: 0;
+    transform: translateY(28px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+.reveal {
+  opacity: 0;
+  transform: translateY(28px);
+}
+
+.reveal.visible {
+  animation: fadeInUp 0.55s ease-out forwards;
+}
+
+/* Stagger delays for project cards */
+.reveal-delay-1 { animation-delay: 0.05s; }
+.reveal-delay-2 { animation-delay: 0.12s; }
+.reveal-delay-3 { animation-delay: 0.19s; }
+.reveal-delay-4 { animation-delay: 0.26s; }
+.reveal-delay-5 { animation-delay: 0.33s; }
+
+/* Gradient text utility */
+.text-gradient {
+  background: linear-gradient(135deg, #22d3ee 0%, #67e8f9 50%, #a5f3fc 100%);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+
+/* Accent glow effect */
+.glow-accent {
+  box-shadow: 0 0 24px rgba(34, 211, 238, 0.18);
+}
+
+/* Chat scrollbar */
+.chat-scroll::-webkit-scrollbar {
+  width: 4px;
+}
+
+.chat-scroll::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.chat-scroll::-webkit-scrollbar-thumb {
+  background: #3f3f46;
+  border-radius: 2px;
+}
--- a/portfolio-view/src/main.tsx
+++ b/portfolio-view/src/main.tsx
@@ -0,0 +1,13 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import './index.css'
+import App from './App'
+
+const root = document.getElementById('root')
+if (!root) throw new Error('Root element not found')
+
+createRoot(root).render(
+  <StrictMode>
+    <App />
+  </StrictMode>
+)
--- a/portfolio-view/src/services/api.ts
+++ b/portfolio-view/src/services/api.ts
@@ -0,0 +1,109 @@
+const BASE_URL = ''
+
+export async function fetchHrGuestToken(): Promise<string> {
+  const response = await fetch(`${BASE_URL}/api/auth/hr-guest-token`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+  })
+  if (!response.ok) {
+    throw new Error(`Token request failed: ${response.status}`)
+  }
+  const data: { token: string } = await response.json()
+  return data.token
+}
+
+export async function createChat(token: string): Promise<string> {
+  const response = await fetch(`${BASE_URL}/api/rag/chats`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${token}`,
+    },
+  })
+  if (!response.ok) {
+    throw new Error(`Chat creation failed: ${response.status}`)
+  }
+  const data: { id: string } = await response.json()
+  return data.id
+}
+
+/**
+ * Sends a chat query and streams the SSE response token by token.
+ * Returns a cleanup function that aborts the request.
+ */
+export function streamChatQuery(
+  chatId: string,
+  message: string,
+  token: string,
+  onChunk: (chunk: string) => void,
+  onDone: () => void,
+  onError: (error: Error) => void
+): () => void {
+  const controller = new AbortController()
+
+  fetch(`${BASE_URL}/api/rag/chats/${chatId}/query`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${token}`,
+      Accept: 'text/event-stream',
+    },
+    body: JSON.stringify({ message }),
+    signal: controller.signal,
+  })
+    .then(async (response) => {
+      if (!response.ok) {
+        throw new Error(`Query failed: ${response.status}`)
+      }
+      if (!response.body) {
+        throw new Error('Empty response body')
+      }
+
+      const reader = response.body.getReader()
+      const decoder = new TextDecoder()
+      let buffer = ''
+
+      while (true) {
+        const { done, value } = await reader.read()
+        if (done) {
+          onDone()
+          break
+        }
+
+        buffer += decoder.decode(value, { stream: true })
+        const lines = buffer.split('\n')
+        // Keep the last (possibly incomplete) line in the buffer
+        buffer = lines.pop() ?? ''
+
+        for (const line of lines) {
+          if (!line.startsWith('data:')) continue
+          const data = line.slice(5).trim()
+          if (data === '[DONE]' || data === '') continue
+
+          // Handle both plain text and JSON payloads: {"content": "..."}
+          try {
+            const parsed: unknown = JSON.parse(data)
+            if (
+              parsed !== null &&
+              typeof parsed === 'object' &&
+              'content' in parsed &&
+              typeof (parsed as Record<string, unknown>).content === 'string'
+            ) {
+              onChunk((parsed as { content: string }).content)
+            } else {
+              onChunk(data)
+            }
+          } catch {
+            onChunk(data)
+          }
+        }
+      }
+    })
+    .catch((error: unknown) => {
+      if (error instanceof Error && error.name !== 'AbortError') {
+        onError(error)
+      }
+    })
+
+  return () => controller.abort()
+}
--- a/portfolio-view/src/types/index.ts
+++ b/portfolio-view/src/types/index.ts
@@ -0,0 +1,23 @@
+export interface Project {
+  id: string
+  title: string
+  description: string
+  stack: string[]
+  demoUrl?: string
+  isInfrastructure?: boolean
+}
+
+export interface ChatMessageType {
+  id: string
+  role: 'user' | 'assistant'
+  content: string
+  isStreaming?: boolean
+}
+
+export interface HrGuestTokenResponse {
+  token: string
+}
+
+export interface ChatCreateResponse {
+  id: string
+}
--- a/portfolio-view/tailwind.config.ts
+++ b/portfolio-view/tailwind.config.ts
@@ -0,0 +1,21 @@
+// Tailwind CSS v4 uses CSS-based configuration via @theme in index.css.
+// This file is a reference for theme tokens used in the project.
+// Actual configuration lives in src/index.css inside the @theme block.
+
+export const theme = {
+  fonts: {
+    heading: '"Syne", sans-serif',
+    body: '"DM Sans", sans-serif',
+    mono: '"JetBrains Mono", monospace',
+  },
+  colors: {
+    accent: '#22d3ee',      // cyan-400
+    accentHover: '#67e8f9', // cyan-300
+    bg: '#09090b',          // zinc-950
+    surface: '#18181b',     // zinc-900
+    surface2: '#27272a',    // zinc-800
+    border: '#3f3f46',      // zinc-700
+    textPrimary: '#fafafa', // zinc-50
+    textMuted: '#a1a1aa',   // zinc-400
+  },
+} as const
--- a/portfolio-view/tsconfig.json
+++ b/portfolio-view/tsconfig.json
@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "useDefineForClassFields": true,
+    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "skipLibCheck": true,
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "isolatedModules": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+    "jsx": "react-jsx",
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": ["src", "vite.config.ts"]
+}
--- a/portfolio-view/tsconfig.tsbuildinfo
+++ b/portfolio-view/tsconfig.tsbuildinfo
@@ -0,0 +1 @@
+{"root":["./src/app.tsx","./src/main.tsx","./src/components/chat/chatinput.tsx","./src/components/chat/chatmessage.tsx","./src/components/chat/chatwidget.tsx","./src/components/hero/herosection.tsx","./src/components/layout/footer.tsx","./src/components/layout/header.tsx","./src/components/projects/projectcard.tsx","./src/components/projects/projectssection.tsx","./src/hooks/usehrguestauth.ts","./src/services/api.ts","./src/types/index.ts","./vite.config.ts"],"version":"5.7.3"}
--- a/portfolio-view/vite.config.ts
+++ b/portfolio-view/vite.config.ts
@@ -0,0 +1,19 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+import tailwindcss from '@tailwindcss/vite'
+
+export default defineConfig({
+  base: '/',
+  plugins: [
+    react(),
+    tailwindcss(),
+  ],
+  server: {
+    proxy: {
+      '/api': {
+        target: 'http://localhost:8080',
+        changeOrigin: true,
+      },
+    },
+  },
+})
--- a/rag-service/.gitignore
+++ b/rag-service/.gitignore
@@ -1,43 +0,0 @@
-HELP.md
-target/
-.mvn/wrapper/maven-wrapper.jar
-!**/src/main/**/target/
-!**/src/test/**/target/
-
-### STS ###
-.apt_generated
-.classpath
-.factorypath
-.project
-.settings
-.springBeans
-.sts4-cache
-
-### IntelliJ IDEA ###
-.idea
-*.iws
-*.iml
-*.ipr
-
-### NetBeans ###
-/nbproject/private/
-/nbbuild/
-/dist/
-/nbdist/
-/.nb-gradle/
-build/
-!**/src/main/**/build/
-!**/src/test/**/build/
-
-### VS Code ###
-.vscode/
-
-README.md
-target/
-postgres/data/
-
-.idea/
-servers.json/
-
-src/test/
-ollama/
--- a/rag-service/docker/Dockerfile
+++ b/rag-service/docker/Dockerfile
@@ -1,19 +0,0 @@
-# Stage 1: Build
-FROM eclipse-temurin:25-jdk AS build
-WORKDIR /app
-COPY ../pom.xml .
-COPY ../.mvn .mvn
-COPY ../mvnw .
-RUN chmod +x mvnw && ./mvnw dependency:go-offline -B
-COPY ../src src
-RUN ./mvnw package -DskipTests -B
-
-# Stage 2: Run
-FROM eclipse-temurin:25-jre
-WORKDIR /app
-RUN groupadd -r appgroup && useradd -r -g appgroup appuser
-COPY --from=build /app/target/*.jar app.jar
-RUN chown appuser:appgroup app.jar
-USER appuser
-EXPOSE 8081
-ENTRYPOINT ["java", "-jar", "app.jar"]
--- a/rag-service/mvnw
+++ b/rag-service/mvnw
@@ -1,295 +0,0 @@
-#!/bin/sh
-# ----------------------------------------------------------------------------
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
-# ----------------------------------------------------------------------------
-
-# ----------------------------------------------------------------------------
-# Apache Maven Wrapper startup batch script, version 3.3.4
-#
-# Optional ENV vars
-# -----------------
-#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
-#   MVNW_REPOURL - repo url base for downloading maven distribution
-#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
-#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
-# ----------------------------------------------------------------------------
-
-set -euf
-[ "${MVNW_VERBOSE-}" != debug ] || set -x
-
-# OS specific support.
-native_path() { printf %s\\n "$1"; }
-case "$(uname)" in
-CYGWIN* | MINGW*)
-  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
-  native_path() { cygpath --path --windows "$1"; }
-  ;;
-esac
-
-# set JAVACMD and JAVACCMD
-set_java_home() {
-  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
-  if [ -n "${JAVA_HOME-}" ]; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
-      # IBM's JDK on AIX uses strange locations for the executables
-      JAVACMD="$JAVA_HOME/jre/sh/java"
-      JAVACCMD="$JAVA_HOME/jre/sh/javac"
-    else
-      JAVACMD="$JAVA_HOME/bin/java"
-      JAVACCMD="$JAVA_HOME/bin/javac"
-
-      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
-        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
-        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
-        return 1
-      fi
-    fi
-  else
-    JAVACMD="$(
-      'set' +e
-      'unset' -f command 2>/dev/null
-      'command' -v java
-    )" || :
-    JAVACCMD="$(
-      'set' +e
-      'unset' -f command 2>/dev/null
-      'command' -v javac
-    )" || :
-
-    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
-      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
-      return 1
-    fi
-  fi
-}
-
-# hash string like Java String::hashCode
-hash_string() {
-  str="${1:-}" h=0
-  while [ -n "$str" ]; do
-    char="${str%"${str#?}"}"
-    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
-    str="${str#?}"
-  done
-  printf %x\\n $h
-}
-
-verbose() { :; }
-[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
-
-die() {
-  printf %s\\n "$1" >&2
-  exit 1
-}
-
-trim() {
-  # MWRAPPER-139:
-  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
-  #   Needed for removing poorly interpreted newline sequences when running in more
-  #   exotic environments such as mingw bash on Windows.
-  printf "%s" "${1}" | tr -d '[:space:]'
-}
-
-scriptDir="$(dirname "$0")"
-scriptName="$(basename "$0")"
-
-# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
-while IFS="=" read -r key value; do
-  case "${key-}" in
-  distributionUrl) distributionUrl=$(trim "${value-}") ;;
-  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
-  esac
-done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties"
-[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
-
-case "${distributionUrl##*/}" in
-maven-mvnd-*bin.*)
-  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
-  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
-  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
-  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
-  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
-  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
-  *)
-    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
-    distributionPlatform=linux-amd64
-    ;;
-  esac
-  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
-  ;;
-maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
-*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
-esac
-
-# apply MVNW_REPOURL and calculate MAVEN_HOME
-# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
-[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
-distributionUrlName="${distributionUrl##*/}"
-distributionUrlNameMain="${distributionUrlName%.*}"
-distributionUrlNameMain="${distributionUrlNameMain%-bin}"
-MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
-MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
-
-exec_maven() {
-  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
-  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
-}
-
-if [ -d "$MAVEN_HOME" ]; then
-  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
-  exec_maven "$@"
-fi
-
-case "${distributionUrl-}" in
-*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
-*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
-esac
-
-# prepare tmp dir
-if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
-  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
-  trap clean HUP INT TERM EXIT
-else
-  die "cannot create temp dir"
-fi
-
-mkdir -p -- "${MAVEN_HOME%/*}"
-
-# Download and Install Apache Maven
-verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
-verbose "Downloading from: $distributionUrl"
-verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
-
-# select .zip or .tar.gz
-if ! command -v unzip >/dev/null; then
-  distributionUrl="${distributionUrl%.zip}.tar.gz"
-  distributionUrlName="${distributionUrl##*/}"
-fi
-
-# verbose opt
-__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
-[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
-
-# normalize http auth
-case "${MVNW_PASSWORD:+has-password}" in
-'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
-has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
-esac
-
-if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
-  verbose "Found wget ... using wget"
-  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
-elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
-  verbose "Found curl ... using curl"
-  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
-elif set_java_home; then
-  verbose "Falling back to use Java to download"
-  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
-  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
-  cat >"$javaSource" <<-END
-	public class Downloader extends java.net.Authenticator
-	{
-	  protected java.net.PasswordAuthentication getPasswordAuthentication()
-	  {
-	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
-	  }
-	  public static void main( String[] args ) throws Exception
-	  {
-	    setDefault( new Downloader() );
-	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
-	  }
-	}
-	END
-  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
-  verbose " - Compiling Downloader.java ..."
-  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
-  verbose " - Running Downloader.java ..."
-  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
-fi
-
-# If specified, validate the SHA-256 sum of the Maven distribution zip file
-if [ -n "${distributionSha256Sum-}" ]; then
-  distributionSha256Result=false
-  if [ "$MVN_CMD" = mvnd.sh ]; then
-    echo "Checksum validation is not supported for maven-mvnd." >&2
-    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
-    exit 1
-  elif command -v sha256sum >/dev/null; then
-    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then
-      distributionSha256Result=true
-    fi
-  elif command -v shasum >/dev/null; then
-    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
-      distributionSha256Result=true
-    fi
-  else
-    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
-    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
-    exit 1
-  fi
-  if [ $distributionSha256Result = false ]; then
-    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
-    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
-    exit 1
-  fi
-fi
-
-# unzip and move
-if command -v unzip >/dev/null; then
-  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
-else
-  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
-fi
-
-# Find the actual extracted directory name (handles snapshots where filename != directory name)
-actualDistributionDir=""
-
-# First try the expected directory name (for regular distributions)
-if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then
-  if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then
-    actualDistributionDir="$distributionUrlNameMain"
-  fi
-fi
-
-# If not found, search for any directory with the Maven executable (for snapshots)
-if [ -z "$actualDistributionDir" ]; then
-  # enable globbing to iterate over items
-  set +f
-  for dir in "$TMP_DOWNLOAD_DIR"/*; do
-    if [ -d "$dir" ]; then
-      if [ -f "$dir/bin/$MVN_CMD" ]; then
-        actualDistributionDir="$(basename "$dir")"
-        break
-      fi
-    fi
-  done
-  set -f
-fi
-
-if [ -z "$actualDistributionDir" ]; then
-  verbose "Contents of $TMP_DOWNLOAD_DIR:"
-  verbose "$(ls -la "$TMP_DOWNLOAD_DIR")"
-  die "Could not find Maven distribution directory in extracted archive"
-fi
-
-verbose "Found extracted Maven distribution directory: $actualDistributionDir"
-printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url"
-mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
-
-clean || :
-exec_maven "$@"
--- a/rag-service/mvnw.cmd
+++ b/rag-service/mvnw.cmd
@@ -1,189 +0,0 @@
-<# : batch portion
-@REM ----------------------------------------------------------------------------
-@REM Licensed to the Apache Software Foundation (ASF) under one
-@REM or more contributor license agreements.  See the NOTICE file
-@REM distributed with this work for additional information
-@REM regarding copyright ownership.  The ASF licenses this file
-@REM to you under the Apache License, Version 2.0 (the
-@REM "License"); you may not use this file except in compliance
-@REM with the License.  You may obtain a copy of the License at
-@REM
-@REM    http://www.apache.org/licenses/LICENSE-2.0
-@REM
-@REM Unless required by applicable law or agreed to in writing,
-@REM software distributed under the License is distributed on an
-@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-@REM KIND, either express or implied.  See the License for the
-@REM specific language governing permissions and limitations
-@REM under the License.
-@REM ----------------------------------------------------------------------------
-
-@REM ----------------------------------------------------------------------------
-@REM Apache Maven Wrapper startup batch script, version 3.3.4
-@REM
-@REM Optional ENV vars
-@REM   MVNW_REPOURL - repo url base for downloading maven distribution
-@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
-@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
-@REM ----------------------------------------------------------------------------
-
-@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
-@SET __MVNW_CMD__=
-@SET __MVNW_ERROR__=
-@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
-@SET PSModulePath=
-@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
-  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
-)
-@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
-@SET __MVNW_PSMODULEP_SAVE=
-@SET __MVNW_ARG0_NAME__=
-@SET MVNW_USERNAME=
-@SET MVNW_PASSWORD=
-@IF NOT "%__MVNW_CMD__%"=="" ("%__MVNW_CMD__%" %*)
-@echo Cannot start maven from wrapper >&2 && exit /b 1
-@GOTO :EOF
-: end batch / begin powershell #>
-
-$ErrorActionPreference = "Stop"
-if ($env:MVNW_VERBOSE -eq "true") {
-  $VerbosePreference = "Continue"
-}
-
-# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
-$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
-if (!$distributionUrl) {
-  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
-}
-
-switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
-  "maven-mvnd-*" {
-    $USE_MVND = $true
-    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
-    $MVN_CMD = "mvnd.cmd"
-    break
-  }
-  default {
-    $USE_MVND = $false
-    $MVN_CMD = $script -replace '^mvnw','mvn'
-    break
-  }
-}
-
-# apply MVNW_REPOURL and calculate MAVEN_HOME
-# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
-if ($env:MVNW_REPOURL) {
-  $MVNW_REPO_PATTERN = if ($USE_MVND -eq $False) { "/org/apache/maven/" } else { "/maven/mvnd/" }
-  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace "^.*$MVNW_REPO_PATTERN",'')"
-}
-$distributionUrlName = $distributionUrl -replace '^.*/',''
-$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
-
-$MAVEN_M2_PATH = "$HOME/.m2"
-if ($env:MAVEN_USER_HOME) {
-  $MAVEN_M2_PATH = "$env:MAVEN_USER_HOME"
-}
-
-if (-not (Test-Path -Path $MAVEN_M2_PATH)) {
-    New-Item -Path $MAVEN_M2_PATH -ItemType Directory | Out-Null
-}
-
-$MAVEN_WRAPPER_DISTS = $null
-if ((Get-Item $MAVEN_M2_PATH).Target[0] -eq $null) {
-  $MAVEN_WRAPPER_DISTS = "$MAVEN_M2_PATH/wrapper/dists"
-} else {
-  $MAVEN_WRAPPER_DISTS = (Get-Item $MAVEN_M2_PATH).Target[0] + "/wrapper/dists"
-}
-
-$MAVEN_HOME_PARENT = "$MAVEN_WRAPPER_DISTS/$distributionUrlNameMain"
-$MAVEN_HOME_NAME = ([System.Security.Cryptography.SHA256]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
-$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
-
-if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
-  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
-  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
-  exit $?
-}
-
-if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
-  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
-}
-
-# prepare tmp dir
-$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
-$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
-$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
-trap {
-  if ($TMP_DOWNLOAD_DIR.Exists) {
-    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
-    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
-  }
-}
-
-New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
-
-# Download and Install Apache Maven
-Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
-Write-Verbose "Downloading from: $distributionUrl"
-Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
-
-$webclient = New-Object System.Net.WebClient
-if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
-  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
-}
-[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
-$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
-
-# If specified, validate the SHA-256 sum of the Maven distribution zip file
-$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
-if ($distributionSha256Sum) {
-  if ($USE_MVND) {
-    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
-  }
-  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
-  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
-    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
-  }
-}
-
-# unzip and move
-Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
-
-# Find the actual extracted directory name (handles snapshots where filename != directory name)
-$actualDistributionDir = ""
-
-# First try the expected directory name (for regular distributions)
-$expectedPath = Join-Path "$TMP_DOWNLOAD_DIR" "$distributionUrlNameMain"
-$expectedMvnPath = Join-Path "$expectedPath" "bin/$MVN_CMD"
-if ((Test-Path -Path $expectedPath -PathType Container) -and (Test-Path -Path $expectedMvnPath -PathType Leaf)) {
-  $actualDistributionDir = $distributionUrlNameMain
-}
-
-# If not found, search for any directory with the Maven executable (for snapshots)
-if (!$actualDistributionDir) {
-  Get-ChildItem -Path "$TMP_DOWNLOAD_DIR" -Directory | ForEach-Object {
-    $testPath = Join-Path $_.FullName "bin/$MVN_CMD"
-    if (Test-Path -Path $testPath -PathType Leaf) {
-      $actualDistributionDir = $_.Name
-    }
-  }
-}
-
-if (!$actualDistributionDir) {
-  Write-Error "Could not find Maven distribution directory in extracted archive"
-}
-
-Write-Verbose "Found extracted Maven distribution directory: $actualDistributionDir"
-Rename-Item -Path "$TMP_DOWNLOAD_DIR/$actualDistributionDir" -NewName $MAVEN_HOME_NAME | Out-Null
-try {
-  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
-} catch {
-  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
-    Write-Error "fail to move MAVEN_HOME"
-  }
-} finally {
-  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
-  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
-}
-
-Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
--- a/rag-service/pom.xml
+++ b/rag-service/pom.xml
@@ -1,204 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>org.springframework.boot</groupId>
-		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.5.7</version>
-		<relativePath/>
-	</parent>
-	<groupId>com.balex</groupId>
-	<artifactId>rag</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<description>Backend for queries to RAG</description>
-	<url/>
-	<licenses>
-		<license/>
-	</licenses>
-	<developers>
-		<developer/>
-	</developers>
-	<scm>
-		<connection/>
-		<developerConnection/>
-		<tag/>
-		<url/>
-	</scm>
-	<properties>
-		<java.version>25</java.version>
-		<spring-ai.version>1.0.3</spring-ai.version>
-		<spring-cloud.version>2025.0.0</spring-cloud.version>
-		<lombok-mapstruct-binding.version>0.2.0</lombok-mapstruct-binding.version>
-	</properties>
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-data-jpa</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-validation</artifactId>
-		</dependency>
-		<!-- Actuator for health checks and Consul registration -->
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-actuator</artifactId>
-		</dependency>
-		<!-- Consul service discovery -->
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-starter-consul-discovery</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.commons</groupId>
-			<artifactId>commons-lang3</artifactId>
-			<version>3.18.0</version>
-		</dependency>
-		<dependency>
-			<groupId>org.mapstruct</groupId>
-			<artifactId>mapstruct</artifactId>
-			<version>1.5.5.Final</version>
-		</dependency>
-		<dependency>
-			<groupId>org.mapstruct</groupId>
-			<artifactId>mapstruct-processor</artifactId>
-			<version>1.5.5.Final</version>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-thymeleaf</artifactId>
-		</dependency>
-
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<!-- OpenAI-compatible API: Groq for chat, OpenAI for embedding -->
-		<dependency>
-			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-starter-model-openai</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-starter-model-chat-memory-repository-jdbc</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-starter-vector-store-pgvector</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-advisors-vector-store</artifactId>
-		</dependency>
-
-		<dependency>
-			<groupId>org.postgresql</groupId>
-			<artifactId>postgresql</artifactId>
-			<scope>runtime</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>org.projectlombok</groupId>
-			<artifactId>lombok</artifactId>
-			<optional>true</optional>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>com.github.pemistahl</groupId>
-			<artifactId>lingua</artifactId>
-			<version>1.2.2</version>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.lucene</groupId>
-			<artifactId>lucene-analysis-common</artifactId>
-			<version>10.3.1</version>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-security</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.security</groupId>
-			<artifactId>spring-security-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.springdoc</groupId>
-			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
-			<version>2.8.8</version>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.kafka</groupId>
-			<artifactId>spring-kafka</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.ai</groupId>
-			<artifactId>spring-ai-tika-document-reader</artifactId>
-		</dependency>
-	</dependencies>
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<groupId>org.springframework.ai</groupId>
-				<artifactId>spring-ai-bom</artifactId>
-				<version>${spring-ai.version}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-			<dependency>
-				<groupId>org.springframework.cloud</groupId>
-				<artifactId>spring-cloud-dependencies</artifactId>
-				<version>${spring-cloud.version}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
-
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<configuration>
-					<annotationProcessorPaths>
-						<path>
-							<groupId>org.projectlombok</groupId>
-							<artifactId>lombok</artifactId>
-						</path>
-						<path>
-							<groupId>org.projectlombok</groupId>
-							<artifactId>lombok-mapstruct-binding</artifactId>
-							<version>${lombok-mapstruct-binding.version}</version>
-						</path>
-						<path>
-							<groupId>org.mapstruct</groupId>
-							<artifactId>mapstruct-processor</artifactId>
-							<version>1.5.5.Final</version>
-						</path>
-
-					</annotationProcessorPaths>
-				</configuration>
-			</plugin>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-				<configuration>
-					<excludes>
-						<exclude>
-							<groupId>org.projectlombok</groupId>
-							<artifactId>lombok</artifactId>
-						</exclude>
-					</excludes>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
-
-</project>
--- a/rag-service/src/main/java/com/balex/rag/RagApplication.java
+++ b/rag-service/src/main/java/com/balex/rag/RagApplication.java
@@ -1,76 +0,0 @@
-package com.balex.rag;
-
-import com.balex.rag.advisors.expansion.ExpansionQueryAdvisor;
-import com.balex.rag.advisors.rag.RagAdvisor;
-import com.balex.rag.config.RagDefaultsProperties;
-import com.balex.rag.config.RagExpansionProperties;
-import com.balex.rag.repo.ChatRepository;
-import com.balex.rag.service.PostgresChatMemory;
-import lombok.RequiredArgsConstructor;
-import org.springframework.ai.chat.client.ChatClient;
-import org.springframework.ai.chat.client.advisor.MessageChatMemoryAdvisor;
-import org.springframework.ai.chat.client.advisor.SimpleLoggerAdvisor;
-import org.springframework.ai.chat.client.advisor.api.Advisor;
-import org.springframework.ai.chat.memory.ChatMemory;
-import org.springframework.ai.chat.model.ChatModel;
-import org.springframework.ai.chat.prompt.PromptTemplate;
-import org.springframework.ai.openai.OpenAiChatOptions;
-import org.springframework.ai.vectorstore.VectorStore;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.context.annotation.Bean;
-
-@SpringBootApplication
-@RequiredArgsConstructor
-@EnableConfigurationProperties({RagDefaultsProperties.class, RagExpansionProperties.class})
-public class RagApplication {
-
-	private final ChatRepository chatRepository;
-	private final VectorStore vectorStore;
-	private final ChatModel chatModel;
-	private final RagExpansionProperties expansionProperties;
-
-	@Bean
-	public ChatClient chatClient(
-			ChatClient.Builder builder,
-			@Value("${rag.rerank-fetch-multiplier}") int rerankFetchMultiplier,
-			RagDefaultsProperties ragDefaults) {
-		return builder
-				.defaultAdvisors(
-						getHistoryAdvisor(0),
-						ExpansionQueryAdvisor.builder(chatModel, expansionProperties).order(1).build(),
-						SimpleLoggerAdvisor.builder().order(2).build(),
-						RagAdvisor.build(vectorStore)
-								.rerankFetchMultiplier(rerankFetchMultiplier)
-								.searchTopK(ragDefaults.searchTopK())
-								.similarityThreshold(ragDefaults.similarityThreshold())
-								.order(3).build(),
-						SimpleLoggerAdvisor.builder().order(4).build()
-				)
-				.defaultOptions(OpenAiChatOptions.builder()
-						.model(ragDefaults.model())
-						.temperature(ragDefaults.temperature())
-						.topP(ragDefaults.topP())
-						.frequencyPenalty(ragDefaults.repeatPenalty() - 1.0) // Ollama repeatPenalty 1.1 -> frequencyPenalty 0.1
-						.build())
-				.build();
-	}
-
-	private Advisor getHistoryAdvisor(int order) {
-		return MessageChatMemoryAdvisor.builder(getChatMemory()).order(order).build();
-	}
-
-	private ChatMemory getChatMemory() {
-		return PostgresChatMemory.builder()
-				.maxMessages(8)
-				.chatMemoryRepository(chatRepository)
-				.build();
-	}
-
-	public static void main(String[] args) {
-		SpringApplication.run(RagApplication.class, args);
-	}
-
-}
--- a/rag-service/src/main/java/com/balex/rag/advice/CommonControllerAdvice.java
+++ b/rag-service/src/main/java/com/balex/rag/advice/CommonControllerAdvice.java
@@ -1,121 +0,0 @@
-package com.balex.rag.advice;
-
-import com.balex.rag.model.constants.ApiConstants;
-import com.balex.rag.model.exception.InvalidDataException;
-import com.balex.rag.model.exception.InvalidPasswordException;
-import com.balex.rag.model.exception.NotFoundException;
-import com.balex.rag.service.model.exception.DataExistException;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
-import org.springframework.security.core.AuthenticationException;
-import org.springframework.validation.ObjectError;
-import org.springframework.web.bind.MethodArgumentNotValidException;
-import org.springframework.web.bind.annotation.ControllerAdvice;
-import org.springframework.web.bind.annotation.ExceptionHandler;
-import org.springframework.web.bind.annotation.ResponseBody;
-import org.springframework.web.bind.annotation.ResponseStatus;
-
-import java.nio.file.AccessDeniedException;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Objects;
-
-@Slf4j
-@ControllerAdvice
-public class CommonControllerAdvice {
-
-    @ExceptionHandler
-    @ResponseBody
-    protected ResponseEntity<String> handleNotFoundException(NotFoundException ex) {
-        logStackTrace(ex);
-
-        return ResponseEntity
-                .status(HttpStatus.NOT_FOUND)
-                .body(ex.getMessage());
-    }
-
-    @ExceptionHandler(DataExistException.class)
-    @ResponseBody
-    protected ResponseEntity<String> handleDataExistException(DataExistException ex) {
-        logStackTrace(ex);
-
-        return ResponseEntity
-                .status(HttpStatus.CONFLICT)
-                .body(ex.getMessage());
-    }
-
-    @ExceptionHandler(MethodArgumentNotValidException.class)
-    public ResponseEntity<Map<String, String>> handleMethodArgumentNotValidException(MethodArgumentNotValidException ex) {
-        logStackTrace(ex);
-
-        Map<String, String> errors = new HashMap<>();
-        for (ObjectError error : ex.getBindingResult().getAllErrors()) {
-            String errorMessage = error.getDefaultMessage();
-            errors.put("error", errorMessage);
-        }
-
-        return new ResponseEntity<>(errors, HttpStatus.BAD_REQUEST);
-    }
-
-    @ExceptionHandler(AuthenticationException.class)
-    @ResponseBody
-    protected ResponseEntity<String> handleAuthenticationException(AuthenticationException ex) {
-        logStackTrace(ex);
-        return ResponseEntity
-                .status(HttpStatus.UNAUTHORIZED)
-                .body(ex.getMessage());
-    }
-
-    @ExceptionHandler(InvalidDataException.class)
-    @ResponseBody
-    protected ResponseEntity<String> handleInvalidDataException(InvalidDataException ex) {
-        logStackTrace(ex);
-        return ResponseEntity
-                .status(HttpStatus.BAD_REQUEST)
-                .body(ex.getMessage());
-    }
-
-    @ExceptionHandler(InvalidPasswordException.class)
-    @ResponseStatus(HttpStatus.BAD_REQUEST)
-    @ResponseBody
-    public String handleInvalidPasswordException(InvalidPasswordException ex) {
-        return ex.getMessage();
-    }
-
-    @ExceptionHandler(AccessDeniedException.class)
-    @ResponseBody
-    protected ResponseEntity<String> handleAccessDeniedException(AccessDeniedException ex) {
-        logStackTrace(ex);
-        return ResponseEntity
-                .status(HttpStatus.FORBIDDEN)
-                .body(ex.getMessage());
-    }
-
-    private void logStackTrace(Exception ex) {
-        StringBuilder stackTrace = new StringBuilder();
-
-        stackTrace.append(ApiConstants.ANSI_RED);
-
-        stackTrace.append(ex.getMessage()).append(ApiConstants.BREAK_LINE);
-
-        if (Objects.nonNull(ex.getCause())) {
-            stackTrace.append(ex.getCause().getMessage()).append(ApiConstants.BREAK_LINE);
-        }
-
-        Arrays.stream(ex.getStackTrace())
-                .filter(st -> st.getClassName().startsWith(ApiConstants.TIME_ZONE_PACKAGE_NAME))
-                .forEach(st -> stackTrace
-                        .append(st.getClassName())
-                        .append(".")
-                        .append(st.getMethodName())
-                        .append(" (")
-                        .append(st.getLineNumber())
-                        .append(") ")
-                );
-
-        log.error(stackTrace.append(ApiConstants.ANSI_WHITE).toString());
-    }
-}
-
--- a/rag-service/src/main/java/com/balex/rag/advisors/expansion/ExpansionQueryAdvisor.java
+++ b/rag-service/src/main/java/com/balex/rag/advisors/expansion/ExpansionQueryAdvisor.java
@@ -1,89 +0,0 @@
-package com.balex.rag.advisors.expansion;
-
-import com.balex.rag.config.RagExpansionProperties;
-import lombok.Builder;
-import lombok.Getter;
-import org.springframework.ai.chat.client.ChatClient;
-import org.springframework.ai.chat.client.ChatClientRequest;
-import org.springframework.ai.chat.client.ChatClientResponse;
-import org.springframework.ai.chat.client.advisor.api.AdvisorChain;
-import org.springframework.ai.chat.client.advisor.api.BaseAdvisor;
-import org.springframework.ai.chat.model.ChatModel;
-import org.springframework.ai.chat.prompt.PromptTemplate;
-import org.springframework.ai.openai.OpenAiChatOptions;
-
-import java.util.Map;
-
-@Builder
-public class ExpansionQueryAdvisor implements BaseAdvisor {
-
-
-    private static final PromptTemplate template = PromptTemplate.builder()
-            .template("""
-            Expand the search query by adding relevant terms.
-            
-            Rules:
-            - Keep all original words
-            - Add up to 5 specific terms
-            - Output ONLY the expanded query, nothing else
-            - No explanations, no formatting, no quotes, no bullet points
-            
-            Examples:
-            Question: what is spring
-            Query: what is spring framework Java dependency injection
-            
-            Question: how to configure security
-            Query: how to configure security Spring Security authentication authorization filter chain
-            
-            Question: {question}
-            Query:
-            """).build();
-
-
-    public static final String ENRICHED_QUESTION = "ENRICHED_QUESTION";
-    public static final String ORIGINAL_QUESTION = "ORIGINAL_QUESTION";
-    public static final String EXPANSION_RATIO = "EXPANSION_RATIO";
-
-    private ChatClient chatClient;
-
-    public static ExpansionQueryAdvisorBuilder builder(ChatModel chatModel, RagExpansionProperties props) {
-        return new ExpansionQueryAdvisorBuilder().chatClient(ChatClient.builder(chatModel)
-                .defaultOptions(OpenAiChatOptions.builder()
-                        .model(props.model())
-                        .temperature(props.temperature())
-                        .topP(props.topP())
-                        .frequencyPenalty(props.repeatPenalty() - 1.0) // Ollama repeatPenalty 1.0 -> frequencyPenalty 0.0
-                        .build())
-                .build());
-    }
-
-    @Getter
-    private final int order;
-
-    @Override
-    public ChatClientRequest before(ChatClientRequest chatClientRequest, AdvisorChain advisorChain) {
-
-        String userQuestion = chatClientRequest.prompt().getUserMessage().getText();
-        String enrichedQuestion = chatClient
-                .prompt()
-                .user(template.render(Map.of("question", userQuestion)))
-                .call()
-                .content();
-
-        double ratio = enrichedQuestion.length() / (double) userQuestion.length();
-
-        return chatClientRequest.mutate()
-                .context(ORIGINAL_QUESTION, userQuestion)
-                .context(ENRICHED_QUESTION, enrichedQuestion)
-                .context(EXPANSION_RATIO, ratio)
-                .build();
-    }
-
-    @Override
-    public ChatClientResponse after(ChatClientResponse chatClientResponse, AdvisorChain advisorChain) {
-
-
-        return chatClientResponse;
-    }
-
-}
--- a/rag-service/src/main/java/com/balex/rag/advisors/rag/BM25RerankEngine.java
+++ b/rag-service/src/main/java/com/balex/rag/advisors/rag/BM25RerankEngine.java
@@ -1,160 +0,0 @@
-package com.balex.rag.advisors.rag;
-
-import com.balex.rag.model.exception.RerankException;
-import com.github.pemistahl.lingua.api.Language;
-import com.github.pemistahl.lingua.api.LanguageDetector;
-import com.github.pemistahl.lingua.api.LanguageDetectorBuilder;
-import lombok.Builder;
-import org.apache.lucene.analysis.Analyzer;
-import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.en.EnglishAnalyzer;
-import org.apache.lucene.analysis.ru.RussianAnalyzer;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.springframework.ai.document.Document;
-
-import java.io.IOException;
-import java.util.*;
-import java.util.stream.Collectors;
-
-import static com.balex.rag.model.constants.ApiErrorMessage.TOKENIZATION_ERROR;
-
-@Builder
-public class BM25RerankEngine {
-    @Builder.Default
-    private static final LanguageDetector languageDetector = LanguageDetectorBuilder
-            .fromLanguages(Language.ENGLISH, Language.RUSSIAN)
-            .build();
-
-    // BM25 parameters
-    @Builder.Default
-    private final double K = 1.2;
-    @Builder.Default
-    private final double B = 0.75;
-
-    public List<Document> rerank(List<Document> corpus, String query, int limit) {
-
-        if (corpus == null || corpus.isEmpty()) {
-            return new ArrayList<>();
-        }
-
-        // Compute corpus statistics
-        CorpusStats stats = computeCorpusStats(corpus);
-
-        // Tokenize query
-        List<String> queryTerms = tokenize(query);
-
-        // Score and sort documents
-        return corpus.stream()
-                .sorted((d1, d2) -> Double.compare(
-                        score(queryTerms, d2, stats),
-                        score(queryTerms, d1, stats)
-                ))
-                .limit(limit)
-                .collect(Collectors.toList());
-    }
-
-    private CorpusStats computeCorpusStats(List<Document> corpus) {
-        Map<String, Integer> docFreq = new HashMap<>();
-        Map<Document, List<String>> tokenizedDocs = new HashMap<>();
-        int totalLength = 0;
-        int totalDocs = corpus.size();
-
-        // Process each document
-        for (Document doc : corpus) {
-            List<String> tokens = tokenize(doc.getText());
-            tokenizedDocs.put(doc, tokens);
-            totalLength += tokens.size();
-
-            // Update document frequencies
-            Set<String> uniqueTerms = new HashSet<>(tokens);
-            for (String term : uniqueTerms) {
-                docFreq.put(term, docFreq.getOrDefault(term, 0) + 1);
-            }
-        }
-
-        double avgDocLength = (double) totalLength / totalDocs;
-
-        return new CorpusStats(docFreq, tokenizedDocs, avgDocLength, totalDocs);
-    }
-
-    private double score(List<String> queryTerms, Document doc, CorpusStats stats) {
-        List<String> tokens = stats.tokenizedDocs.get(doc);
-        if (tokens == null) {
-            return 0.0;
-        }
-
-        // Calculate term frequencies for this document
-        Map<String, Integer> tfMap = new HashMap<>();
-        for (String token : tokens) {
-            tfMap.put(token, tfMap.getOrDefault(token, 0) + 1);
-        }
-
-        int docLength = tokens.size();
-        double score = 0.0;
-
-        // Calculate BM25 score
-        for (String term : queryTerms) {
-            int tf = tfMap.getOrDefault(term, 0); //просто его count - то есть этого влияет на его вес в документе
-            int df = stats.docFreq.getOrDefault(term, 1);
-
-            // BM25 IDF calculation редкость слова - оно поднимает
-            double idf = Math.log(1 + (stats.totalDocs - df + 0.5) / (df + 0.5));
-
-            // BM25 term score calculation
-            double numerator = tf * (K + 1);
-            double denominator = tf + K * (1 - B + B * docLength / stats.avgDocLength);
-            score += idf * (numerator / denominator);
-        }
-
-        return score;
-    }
-
-    private List<String> tokenize(String text) {
-        List<String> tokens = new ArrayList<>();
-        Analyzer analyzer = detectLanguageAnalyzer(text);
-
-        try (TokenStream stream = analyzer.tokenStream(null, text)) {
-            stream.reset();
-            while (stream.incrementToken()) {
-                tokens.add(stream.getAttribute(CharTermAttribute.class).toString());
-            }
-            stream.end();
-        } catch (IOException e) {
-            throw new RerankException(TOKENIZATION_ERROR + e.toString());
-        }
-
-        return tokens;
-    }
-
-    private Analyzer detectLanguageAnalyzer(String text) {
-        Language lang = languageDetector.detectLanguageOf(text);
-        if (lang == Language.ENGLISH) {
-            return new EnglishAnalyzer();
-        } else if (lang == Language.RUSSIAN) {
-            return new RussianAnalyzer();
-        } else {
-            // Fallback to English analyzer for unsupported languages
-            return new EnglishAnalyzer();
-        }
-    }
-
-    // Inner class to hold corpus statistics
-    private static class CorpusStats {
-        final Map<String, Integer> docFreq;
-        final Map<Document, List<String>> tokenizedDocs;
-        final double avgDocLength;
-        final int totalDocs;
-
-        CorpusStats(Map<String, Integer> docFreq,
-                    Map<Document, List<String>> tokenizedDocs,
-                    double avgDocLength,
-                    int totalDocs) {
-            this.docFreq = docFreq;
-            this.tokenizedDocs = tokenizedDocs;
-            this.avgDocLength = avgDocLength;
-            this.totalDocs = totalDocs;
-        }
-    }
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/advisors/rag/RagAdvisor.java
+++ b/rag-service/src/main/java/com/balex/rag/advisors/rag/RagAdvisor.java
@@ -1,82 +0,0 @@
-package com.balex.rag.advisors.rag;
-
-import lombok.Builder;
-import lombok.Getter;
-import org.springframework.ai.chat.client.ChatClientRequest;
-import org.springframework.ai.chat.client.ChatClientResponse;
-import org.springframework.ai.chat.client.advisor.api.AdvisorChain;
-import org.springframework.ai.chat.client.advisor.api.BaseAdvisor;
-import org.springframework.ai.chat.prompt.PromptTemplate;
-import org.springframework.ai.document.Document;
-import org.springframework.ai.vectorstore.SearchRequest;
-import org.springframework.ai.vectorstore.VectorStore;
-
-import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
-
-import static com.balex.rag.advisors.expansion.ExpansionQueryAdvisor.ENRICHED_QUESTION;
-
-
-@Builder
-public class RagAdvisor implements BaseAdvisor {
-
-    private static final PromptTemplate template = PromptTemplate.builder().template("""
-            CONTEXT: {context}
-            Question: {question}
-            """).build();
-
-    private final int rerankFetchMultiplier;
-    private final int searchTopK;
-    private final double similarityThreshold;
-    private VectorStore vectorStore;
-
-    @Getter
-    private final int order;
-
-    public static RagAdvisorBuilder build(VectorStore vectorStore) {
-        return new RagAdvisorBuilder().vectorStore(vectorStore);
-    }
-
-    @Override
-    public ChatClientRequest before(ChatClientRequest chatClientRequest, AdvisorChain advisorChain) {
-        String originalUserQuestion = chatClientRequest.prompt().getUserMessage().getText();
-        String queryToRag = chatClientRequest.context().getOrDefault(ENRICHED_QUESTION, originalUserQuestion).toString();
-
-        Object userIdObj = chatClientRequest.context().get("USER_ID");
-
-        SearchRequest.Builder searchBuilder = SearchRequest.builder()
-                .query(queryToRag)
-                .topK(searchTopK * rerankFetchMultiplier)
-                .similarityThreshold(similarityThreshold);
-
-        if (userIdObj != null) {
-            searchBuilder.filterExpression("user_id == " + userIdObj);
-        }
-
-        List<Document> documents = vectorStore.similaritySearch(searchBuilder.build());
-
-        if (documents == null || documents.isEmpty()) {
-            return chatClientRequest.mutate().context("CONTEXT", "EMPTY").build();
-        }
-
-        BM25RerankEngine rerankEngine = BM25RerankEngine.builder().build();
-        documents = rerankEngine.rerank(documents, queryToRag, searchTopK);
-
-        String llmContext = documents.stream()
-                .map(Document::getText)
-                .collect(Collectors.joining(System.lineSeparator()));
-
-        String finalUserPrompt = template.render(
-                Map.of("context", llmContext, "question", originalUserQuestion));
-
-        return chatClientRequest.mutate()
-                .prompt(chatClientRequest.prompt().augmentUserMessage(finalUserPrompt))
-                .build();
-    }
-
-    @Override
-    public ChatClientResponse after(ChatClientResponse chatClientResponse, AdvisorChain advisorChain) {
-        return chatClientResponse;
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/config/EmbeddingConfig.java
+++ b/rag-service/src/main/java/com/balex/rag/config/EmbeddingConfig.java
@@ -1,26 +0,0 @@
-package com.balex.rag.config;
-
-import org.springframework.ai.openai.OpenAiEmbeddingModel;
-import org.springframework.ai.openai.api.OpenAiApi;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-public class EmbeddingConfig {
-
-    @Value("${embedding.openai.api-key:${OPENAI_API_KEY:}}")
-    private String openaiApiKey;
-
-    @Value("${embedding.openai.model:text-embedding-3-small}")
-    private String embeddingModel;
-
-    @Bean
-    public OpenAiEmbeddingModel embeddingModel() {
-        OpenAiApi openAiApi = OpenAiApi.builder()
-                .baseUrl("https://api.openai.com")
-                .apiKey(openaiApiKey)
-                .build();
-        return new OpenAiEmbeddingModel(openAiApi);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/config/KafkaProducerConfig.java
+++ b/rag-service/src/main/java/com/balex/rag/config/KafkaProducerConfig.java
@@ -1,43 +0,0 @@
-package com.balex.rag.config;
-
-import com.balex.rag.model.dto.UserEvent;
-import org.apache.kafka.clients.producer.ProducerConfig;
-import org.apache.kafka.common.serialization.StringSerializer;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.kafka.core.DefaultKafkaProducerFactory;
-import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.core.ProducerFactory;
-import org.springframework.kafka.support.serializer.JsonSerializer;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.SerializationFeature;
-import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
-
-import java.util.Map;
-
-@Configuration
-public class KafkaProducerConfig {
-
-    @Value("${spring.kafka.bootstrap-servers:localhost:9092}")
-    private String bootstrapServers;
-
-    @Bean
-    public ProducerFactory<String, UserEvent> producerFactory() {
-        ObjectMapper mapper = new ObjectMapper();
-        mapper.registerModule(new JavaTimeModule());
-        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
-
-        Map<String, Object> props = Map.of(
-                ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers,
-                ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class
-        );
-
-        return new DefaultKafkaProducerFactory<>(props, new StringSerializer(), new JsonSerializer<>(mapper));
-    }
-
-    @Bean
-    public KafkaTemplate<String, UserEvent> kafkaTemplate() {
-        return new KafkaTemplate<>(producerFactory());
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/config/RagDefaultsProperties.java
+++ b/rag-service/src/main/java/com/balex/rag/config/RagDefaultsProperties.java
@@ -1,16 +0,0 @@
-package com.balex.rag.config;
-
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.boot.context.properties.bind.DefaultValue;
-
-@ConfigurationProperties(prefix = "rag.defaults")
-public record RagDefaultsProperties(
-        @DefaultValue("true") boolean onlyContext,
-        @DefaultValue("2") int topK,
-        @DefaultValue("0.7") double topP,
-        @DefaultValue("0.3") double temperature,
-        @DefaultValue("1.1") double repeatPenalty,
-        @DefaultValue("2") int searchTopK,
-        @DefaultValue("0.3") double similarityThreshold,
-        @DefaultValue("llama-3.3-70b-versatile") String model
-) {}
--- a/rag-service/src/main/java/com/balex/rag/config/RagExpansionProperties.java
+++ b/rag-service/src/main/java/com/balex/rag/config/RagExpansionProperties.java
@@ -1,13 +0,0 @@
-package com.balex.rag.config;
-
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.boot.context.properties.bind.DefaultValue;
-
-@ConfigurationProperties(prefix = "rag.expansion")
-public record RagExpansionProperties(
-        @DefaultValue("0.0") double temperature,
-        @DefaultValue("1") int topK,
-        @DefaultValue("0.1") double topP,
-        @DefaultValue("1.0") double repeatPenalty,
-        @DefaultValue("llama-3.3-70b-versatile") String model
-) {}
--- a/rag-service/src/main/java/com/balex/rag/config/SecurityConfig.java
+++ b/rag-service/src/main/java/com/balex/rag/config/SecurityConfig.java
@@ -1,26 +0,0 @@
-package com.balex.rag.config;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
-import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
-import org.springframework.security.crypto.password.PasswordEncoder;
-import org.springframework.security.web.SecurityFilterChain;
-
-@Configuration
-public class SecurityConfig {
-
-    @Bean
-    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
-        return http
-                .csrf(AbstractHttpConfigurer::disable)
-                .authorizeHttpRequests(auth -> auth.anyRequest().permitAll())
-                .build();
-    }
-
-    @Bean
-    public PasswordEncoder passwordEncoder() {
-        return new BCryptPasswordEncoder();
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/controller/ChatController.java
+++ b/rag-service/src/main/java/com/balex/rag/controller/ChatController.java
@@ -1,64 +0,0 @@
-package com.balex.rag.controller;
-
-import com.balex.rag.model.entity.Chat;
-import com.balex.rag.service.ChatService;
-import com.balex.rag.service.EventPublisher;
-import com.balex.rag.utils.UserContext;
-import jakarta.servlet.http.HttpServletRequest;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.http.ResponseEntity;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.*;
-
-import java.util.List;
-
-@Slf4j
-@RestController
-@Validated
-@RequiredArgsConstructor
-@RequestMapping("${end.points.chat}")
-public class ChatController {
-
-    private final ChatService chatService;
-    private final EventPublisher eventPublisher;
-
-    @GetMapping("")
-    public ResponseEntity<List<Chat>> mainPage(HttpServletRequest request) {
-        Long ownerId = UserContext.getUserId(request).longValue();
-        List<Chat> response = chatService.getAllChatsByOwner(ownerId);
-        return ResponseEntity.ok(response);
-    }
-
-    @GetMapping("/{chatId}")
-    public ResponseEntity<Chat> showChat(@PathVariable Long chatId, HttpServletRequest request) {
-        Long ownerId = UserContext.getUserId(request).longValue();
-        Chat response = chatService.getChat(chatId, ownerId);
-        return ResponseEntity.ok(response);
-    }
-
-    @PostMapping("/new")
-    public ResponseEntity<Chat> newChat(@RequestParam String title, HttpServletRequest request) {
-        Long ownerId = UserContext.getUserId(request).longValue();
-        Chat chat = chatService.createNewChat(title, ownerId);
-
-        eventPublisher.publishChatCreated(
-                chat.getIdOwner().toString(),
-                chat.getId().toString());
-
-        return ResponseEntity.ok(chat);
-    }
-
-    @DeleteMapping("/{chatId}")
-    public ResponseEntity<Void> deleteChat(@PathVariable Long chatId, HttpServletRequest request) {
-        Long ownerId = UserContext.getUserId(request).longValue();
-        Chat chat = chatService.getChat(chatId, ownerId);
-        chatService.deleteChat(chatId, ownerId);
-
-        eventPublisher.publishChatDeleted(
-                chat.getIdOwner().toString(),
-                chatId.toString());
-
-        return ResponseEntity.noContent().build();
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/controller/ChatEntryController.java
+++ b/rag-service/src/main/java/com/balex/rag/controller/ChatEntryController.java
@@ -1,53 +0,0 @@
-package com.balex.rag.controller;
-
-import com.balex.rag.config.RagDefaultsProperties;
-import com.balex.rag.model.constants.ApiLogMessage;
-import com.balex.rag.model.dto.UserEntryRequest;
-import com.balex.rag.model.entity.Chat;
-import com.balex.rag.model.entity.ChatEntry;
-import com.balex.rag.service.ChatEntryService;
-import com.balex.rag.service.ChatService;
-import com.balex.rag.service.EventPublisher;
-import com.balex.rag.utils.ApiUtils;
-import com.balex.rag.utils.UserContext;
-import jakarta.servlet.http.HttpServletRequest;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.http.ResponseEntity;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.*;
-
-@Slf4j
-@RestController
-@Validated
-@RequiredArgsConstructor
-@RequestMapping("${end.points.entry}")
-public class ChatEntryController {
-
-    private final ChatEntryService chatEntryService;
-    private final ChatService chatService;
-    private final RagDefaultsProperties ragDefaults;
-    private final EventPublisher eventPublisher;
-
-    @PostMapping("/{chatId}")
-    public ResponseEntity<ChatEntry> addUserEntry(
-            @PathVariable Long chatId,
-            @RequestBody UserEntryRequest request,
-            HttpServletRequest httpRequest) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        Long ownerId = UserContext.getUserId(httpRequest).longValue();
-
-        boolean onlyContext = request.onlyContext() != null ? request.onlyContext() : ragDefaults.onlyContext();
-        double topP = request.topP() != null ? request.topP() : ragDefaults.topP();
-
-        Chat chat = chatService.getChat(chatId, ownerId);
-        ChatEntry entry = chatEntryService.addUserEntry(chatId, request.content(), onlyContext, topP, chat.getIdOwner());
-
-        eventPublisher.publishQuerySent(
-                chat.getIdOwner().toString(),
-                chatId.toString());
-
-        return ResponseEntity.ok(entry);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/controller/DocumentUploadStreamController.java
+++ b/rag-service/src/main/java/com/balex/rag/controller/DocumentUploadStreamController.java
@@ -1,47 +0,0 @@
-package com.balex.rag.controller;
-
-import com.balex.rag.service.UserDocumentService;
-import com.balex.rag.utils.UserContext;
-import io.swagger.v3.oas.annotations.media.Content;
-import io.swagger.v3.oas.annotations.media.ExampleObject;
-import io.swagger.v3.oas.annotations.responses.ApiResponse;
-import io.swagger.v3.oas.annotations.responses.ApiResponses;
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.validation.Valid;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.http.MediaType;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestPart;
-import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.multipart.MultipartFile;
-import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
-
-import java.util.List;
-
-@Slf4j
-@RestController
-@Validated
-@RequiredArgsConstructor
-@RequestMapping("${end.points.document}")
-public class DocumentUploadStreamController {
-
-    private final UserDocumentService userDocumentService;
-
-    @ApiResponses(value = {
-            @ApiResponse(responseCode = "200", description = "Document processing progress stream",
-                    content = @Content(mediaType = "text/event-stream",
-                            examples = @ExampleObject(
-                                    value = "data: {\"percent\": 33, \"processedFiles\": 1, \"totalFiles\": 3, \"currentFile\": \"doc1.txt\"}\n\n"
-                            )))
-    })
-    @PostMapping(value = "/upload-stream", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
-    public SseEmitter uploadDocumentsWithProgress(
-            @RequestPart("files") @Valid List<MultipartFile> files,
-            HttpServletRequest request) {
-        Integer userId = UserContext.getUserId(request);
-        return userDocumentService.processUploadedFilesWithSse(files, userId.longValue());
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/controller/UserController.java
+++ b/rag-service/src/main/java/com/balex/rag/controller/UserController.java
@@ -1,105 +0,0 @@
-package com.balex.rag.controller;
-
-import com.balex.rag.model.constants.ApiLogMessage;
-import com.balex.rag.model.dto.UserDTO;
-import com.balex.rag.model.dto.UserSearchDTO;
-import com.balex.rag.model.entity.UserInfo;
-import com.balex.rag.model.request.user.NewUserRequest;
-import com.balex.rag.model.request.user.UpdateUserRequest;
-import com.balex.rag.model.response.PaginationResponse;
-import com.balex.rag.model.response.RagResponse;
-import com.balex.rag.service.EventPublisher;
-import com.balex.rag.service.UserService;
-import com.balex.rag.utils.ApiUtils;
-import com.balex.rag.utils.UserContext;
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.validation.Valid;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.data.domain.PageRequest;
-import org.springframework.data.domain.Pageable;
-import org.springframework.http.ResponseEntity;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.*;
-
-@Slf4j
-@RestController
-@Validated
-@RequiredArgsConstructor
-@RequestMapping("${end.points.users}")
-public class UserController {
-    private final UserService userService;
-    private final EventPublisher eventPublisher;
-
-    @GetMapping("${end.points.id}")
-    public ResponseEntity<RagResponse<UserDTO>> getUserById(
-            @PathVariable(name = "id") Integer userId) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        RagResponse<UserDTO> response = userService.getById(userId);
-        return ResponseEntity.ok(response);
-    }
-
-    @PostMapping("${end.points.create}")
-    public ResponseEntity<RagResponse<UserDTO>> createUser(
-            @RequestBody @Valid NewUserRequest request) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        RagResponse<UserDTO> createdUser = userService.createUser(request);
-
-        eventPublisher.publishUserCreated(createdUser.getPayload().getId().toString());
-
-        return ResponseEntity.ok(createdUser);
-    }
-
-    @GetMapping("${end.points.userinfo}")
-    public ResponseEntity<RagResponse<UserInfo>> getUserInfo(HttpServletRequest request) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        Integer userId = UserContext.getUserId(request);
-        RagResponse<UserInfo> userInfo = userService.getUserInfo(userId);
-
-        return ResponseEntity.ok(userInfo);
-    }
-
-    @DeleteMapping("${end.points.userinfo}")
-    public ResponseEntity<RagResponse<Integer>> deleteUserDocuments(HttpServletRequest request) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        Integer userId = UserContext.getUserId(request);
-        RagResponse<Integer> deletedCount = userService.deleteUserDocuments(userId);
-
-        return ResponseEntity.ok(deletedCount);
-    }
-
-    @PutMapping("${end.points.id}")
-    public ResponseEntity<RagResponse<UserDTO>> updateUserById(
-            @PathVariable(name = "id") Integer userId,
-            @RequestBody @Valid UpdateUserRequest request) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        RagResponse<UserDTO> updatedPost = userService.updateUser(userId, request);
-        return ResponseEntity.ok(updatedPost);
-    }
-    @DeleteMapping("${end.points.id}")
-    public ResponseEntity<Void> softDeleteUser(
-            @PathVariable(name = "id") Integer userId,
-            HttpServletRequest request) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        Integer currentUserId = UserContext.getUserId(request);
-        userService.softDeleteUser(userId, currentUserId);
-        return ResponseEntity.ok().build();
-    }
-
-    @GetMapping("${end.points.all}")
-    public ResponseEntity<RagResponse<PaginationResponse<UserSearchDTO>>> getAllUsers(
-            @RequestParam(name = "page", defaultValue = "0") int page,
-            @RequestParam(name = "limit", defaultValue = "10") int limit) {
-        log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), ApiUtils.getMethodName());
-
-        Pageable pageable = PageRequest.of(page, limit);
-        RagResponse<PaginationResponse<UserSearchDTO>> response = userService.findAllUsers(pageable);
-        return ResponseEntity.ok(response);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/filter/GatewayAuthFilter.java
+++ b/rag-service/src/main/java/com/balex/rag/filter/GatewayAuthFilter.java
@@ -1,37 +0,0 @@
-package com.balex.rag.filter;
-
-import jakarta.servlet.FilterChain;
-import jakarta.servlet.ServletException;
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.servlet.http.HttpServletResponse;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.stereotype.Component;
-import org.springframework.web.filter.OncePerRequestFilter;
-
-import java.io.IOException;
-
-@Slf4j
-@Component
-public class GatewayAuthFilter extends OncePerRequestFilter {
-
-    @Override
-    protected void doFilterInternal(HttpServletRequest request,
-                                    HttpServletResponse response,
-                                    FilterChain filterChain) throws ServletException, IOException {
-
-        String userId = request.getHeader("X-User-Id");
-        String email = request.getHeader("X-User-Email");
-        String username = request.getHeader("X-User-Name");
-        String role = request.getHeader("X-User-Role");
-
-        if (userId != null) {
-            request.setAttribute("userId", userId);
-            request.setAttribute("userEmail", email);
-            request.setAttribute("userName", username);
-            request.setAttribute("userRole", role);
-            log.debug("Gateway user: id={}, email={}, role={}", userId, email, role);
-        }
-
-        filterChain.doFilter(request, response);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/mapper/UserMapper.java
+++ b/rag-service/src/main/java/com/balex/rag/mapper/UserMapper.java
@@ -1,36 +0,0 @@
-package com.balex.rag.mapper;
-
-import com.balex.rag.model.dto.UserDTO;
-import com.balex.rag.model.dto.UserSearchDTO;
-import com.balex.rag.model.entity.User;
-import com.balex.rag.model.enums.RegistrationStatus;
-import com.balex.rag.model.request.user.NewUserRequest;
-import com.balex.rag.model.request.user.UpdateUserRequest;
-import org.mapstruct.Mapper;
-import org.mapstruct.Mapping;
-import org.mapstruct.MappingTarget;
-import org.mapstruct.NullValuePropertyMappingStrategy;
-
-import java.util.Objects;
-
-@Mapper(
-        componentModel = "spring",
-        nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.IGNORE,
-        imports = {RegistrationStatus.class, Objects.class}
-)
-public interface UserMapper {
-
-    UserDTO toDto(User user);
-
-    @Mapping(target = "id", ignore = true)
-    @Mapping(target = "created", ignore = true)
-    @Mapping(target = "registrationStatus", expression = "java(RegistrationStatus.ACTIVE)")
-    User createUser(NewUserRequest request);
-
-    @Mapping(target = "id", ignore = true)
-    @Mapping(target = "created", ignore = true)
-    void updateUser(@MappingTarget User user, UpdateUserRequest request);
-
-    @Mapping(source = "deleted", target = "isDeleted")
-    UserSearchDTO toUserSearchDto(User user);
-}
--- a/rag-service/src/main/java/com/balex/rag/model/LoadedDocument.java
+++ b/rag-service/src/main/java/com/balex/rag/model/LoadedDocument.java
@@ -1,37 +0,0 @@
-package com.balex.rag.model;
-
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.GenerationType;
-import jakarta.persistence.Id;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-import org.hibernate.annotations.CreationTimestamp;
-
-import java.time.LocalDateTime;
-
-@Entity
-@Data
-@Builder
-@AllArgsConstructor
-@NoArgsConstructor
-public class LoadedDocument {
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    private String filename;
-    private String contentHash;
-    private String documentType;
-    private int chunkCount;
-
-    @CreationTimestamp
-    private LocalDateTime loadedAt;
-
-    @Column(name = "user_id", nullable = false)
-    private Long userId;
-}
--- a/rag-service/src/main/java/com/balex/rag/model/UploadProgress.java
+++ b/rag-service/src/main/java/com/balex/rag/model/UploadProgress.java
@@ -1,18 +0,0 @@
-package com.balex.rag.model;
-
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class UploadProgress {
-    private int percent;
-    private int processedFiles;
-    private int totalFiles;
-    private String currentFile;
-    private String status; // "processing", "completed", "error"
-}
--- a/rag-service/src/main/java/com/balex/rag/model/constants/ApiConstants.java
+++ b/rag-service/src/main/java/com/balex/rag/model/constants/ApiConstants.java
@@ -1,29 +0,0 @@
-package com.balex.rag.model.constants;
-
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public final class ApiConstants {
-
-    public static final String UNDEFINED = "undefined";
-    public static final String EMPTY_FILENAME = "unknown";
-    public static final String ANSI_RED = "\u001B[31m";
-    public static final String ANSI_WHITE = "\u001B[37m";
-    public static final String BREAK_LINE = "\n";
-    public static final String TIME_ZONE_PACKAGE_NAME = "java.time.zone";
-    public static final String DASH = "-";
-    public static final String PASSWORD_ALL_CHARACTERS =
-            "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789~`!@#$%^&*()-_=+[{]}\\|;:'\",<.>/?";
-    public static final String PASSWORD_LETTERS_UPPER_CASE = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
-    public static final String PASSWORD_LETTERS_LOWER_CASE = "abcdefghijklmnopqrstuvwxyz";
-    public static final String PASSWORD_DIGITS = "0123456789";
-    public static final String PASSWORD_CHARACTERS = "~`!@#$%^&*()-_=+[{]}\\|;:'\",<.>/?";
-    public static final Integer REQUIRED_MIN_PASSWORD_LENGTH = 8;
-    public static final Integer REQUIRED_MIN_LETTERS_NUMBER_EVERY_CASE_IN_PASSWORD = 1;
-    public static final Integer REQUIRED_MIN_DIGITS_NUMBER_IN_PASSWORD = 1;
-    public static final Integer REQUIRED_MIN_CHARACTERS_NUMBER_IN_PASSWORD = 1;
-    public static final String USER_ROLE = "USER_ROLE";
-    public static final Integer MAX_FILES_ALLOWED_FOR_LOAD = 10;
-
-}
--- a/rag-service/src/main/java/com/balex/rag/model/constants/ApiErrorMessage.java
+++ b/rag-service/src/main/java/com/balex/rag/model/constants/ApiErrorMessage.java
@@ -1,51 +0,0 @@
-package com.balex.rag.model.constants;
-
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public enum ApiErrorMessage {
-    POST_NOT_FOUND_BY_ID("Post with ID: %s was not found"),
-    POST_ALREADY_EXISTS("Post with Title: %s already exists"),
-    USER_NOT_FOUND_BY_ID("User with ID: %s was not found"),
-    USERNAME_ALREADY_EXISTS("Username: %s already exists"),
-    USERNAME_NOT_FOUND("Username: %s was not found"),
-    EMAIL_ALREADY_EXISTS("Email: %s already exists"),
-    EMAIL_NOT_FOUND("Email: %s was not found"),
-    USER_ROLE_NOT_FOUND("Role was not found"),
-    COMMENT_NOT_FOUND_BY_ID("Comment with ID: %s was not found"),
-
-    TOKENIZATION_ERROR("Tokenization failed"),
-
-    UPLOADED_FILENAME_EMPTY("Filename is empty"),
-    UPLOAD_FILE_READ_ERROR("Failed to read file"),
-
-    INVALID_TOKEN_SIGNATURE("Invalid token signature"),
-    ERROR_DURING_JWT_PROCESSING("An unexpected error occurred during JWT processing"),
-    TOKEN_EXPIRED("Token expired."),
-    UNEXPECTED_ERROR_OCCURRED("An unexpected error occurred. Please try again later."),
-
-    AUTHENTICATION_FAILED_FOR_USER("Authentication failed for user: {}. "),
-    INVALID_USER_OR_PASSWORD("Invalid email or password. Try again"),
-    INVALID_USER_REGISTRATION_STATUS("Invalid user registration status: %s. "),
-    NOT_FOUND_REFRESH_TOKEN("Refresh token not found."),
-
-    MISMATCH_PASSWORDS("Password does not match"),
-    INVALID_PASSWORD("Invalid password. It must have: "
-            + "length at least " + ApiConstants.REQUIRED_MIN_PASSWORD_LENGTH + ", including "
-            + ApiConstants.REQUIRED_MIN_LETTERS_NUMBER_EVERY_CASE_IN_PASSWORD + " letter(s) in upper and lower cases, "
-            + ApiConstants.REQUIRED_MIN_CHARACTERS_NUMBER_IN_PASSWORD + " character(s), "
-            + ApiConstants.REQUIRED_MIN_DIGITS_NUMBER_IN_PASSWORD + " digit(s). "),
-    HAVE_NO_ACCESS("You don't have the necessary permissions"),
-    KAFKA_SEND_FAILED("Kafka message didn't send."),
-    ;
-
-    private final String message;
-
-    public String getMessage(Object... args) {
-        return String.format(message, args);
-    }
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/constants/ApiLogMessage.java
+++ b/rag-service/src/main/java/com/balex/rag/model/constants/ApiLogMessage.java
@@ -1,13 +0,0 @@
-package com.balex.rag.model.constants;
-
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public enum ApiLogMessage {
-    NAME_OF_CURRENT_METHOD("Current method: {}");
-    private final String value;
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/constants/ApiMessage.java
+++ b/rag-service/src/main/java/com/balex/rag/model/constants/ApiMessage.java
@@ -1,17 +0,0 @@
-package com.balex.rag.model.constants;
-
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public enum ApiMessage {
-    TOKEN_CREATED_OR_UPDATED("User's token has been created or updated"),
-    ;
-
-    private final String message;
-
-}
-
-
--- a/rag-service/src/main/java/com/balex/rag/model/dto/UserDTO.java
+++ b/rag-service/src/main/java/com/balex/rag/model/dto/UserDTO.java
@@ -1,24 +0,0 @@
-package com.balex.rag.model.dto;
-
-import com.balex.rag.model.enums.RegistrationStatus;
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.io.Serializable;
-import java.time.LocalDateTime;
-
-@Data
-@AllArgsConstructor
-@NoArgsConstructor
-public class UserDTO implements Serializable {
-
-    private Integer id;
-    private String username;
-    private String email;
-    private LocalDateTime created;
-    private LocalDateTime lastLogin;
-
-    private RegistrationStatus registrationStatus;
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/dto/UserEntryRequest.java
+++ b/rag-service/src/main/java/com/balex/rag/model/dto/UserEntryRequest.java
@@ -1,7 +0,0 @@
-package com.balex.rag.model.dto;
-
-public record UserEntryRequest(
-        String content,
-        Boolean onlyContext,
-        Double topP
-) {}
--- a/rag-service/src/main/java/com/balex/rag/model/dto/UserEvent.java
+++ b/rag-service/src/main/java/com/balex/rag/model/dto/UserEvent.java
@@ -1,36 +0,0 @@
-package com.balex.rag.model.dto;
-
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.time.Instant;
-
-/**
- * Event published to Kafka topic "user-events".
- * Consumed by analytics-service.
- */
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-@JsonIgnoreProperties(ignoreUnknown = true)
-public class UserEvent {
-
-    private EventType type;
-    private String userId;
-    private String chatId;
-
-    @Builder.Default
-    private Instant timestamp = Instant.now();
-
-    public enum EventType {
-        USER_CREATED,
-        CHAT_CREATED,
-        CHAT_DELETED,
-        QUERY_SENT
-    }
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/dto/UserProfileDTO.java
+++ b/rag-service/src/main/java/com/balex/rag/model/dto/UserProfileDTO.java
@@ -1,25 +0,0 @@
-package com.balex.rag.model.dto;
-
-import com.balex.rag.model.enums.RegistrationStatus;
-import lombok.AllArgsConstructor;
-import lombok.Data;
-
-import java.io.Serializable;
-import java.time.LocalDateTime;
-import java.util.List;
-
-@Data
-@AllArgsConstructor
-public class UserProfileDTO implements Serializable {
-    private Integer id;
-    private String username;
-    private String email;
-
-    private RegistrationStatus registrationStatus;
-    private LocalDateTime lastLogin;
-
-    private String token;
-    private String refreshToken;
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/dto/UserSearchDTO.java
+++ b/rag-service/src/main/java/com/balex/rag/model/dto/UserSearchDTO.java
@@ -1,21 +0,0 @@
-package com.balex.rag.model.dto;
-
-import com.balex.rag.model.enums.RegistrationStatus;
-import lombok.Data;
-
-import java.io.Serializable;
-import java.time.LocalDateTime;
-import java.util.List;
-
-@Data
-public class UserSearchDTO implements Serializable {
-
-    private Integer id;
-    private String username;
-    private String email;
-    private LocalDateTime created;
-    private Boolean isDeleted;
-
-    private RegistrationStatus registrationStatus;
-
-}
--- a/rag-service/src/main/java/com/balex/rag/model/entity/Chat.java
+++ b/rag-service/src/main/java/com/balex/rag/model/entity/Chat.java
@@ -1,43 +0,0 @@
-package com.balex.rag.model.entity;
-
-import jakarta.persistence.*;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-import org.hibernate.annotations.CreationTimestamp;
-
-import java.time.LocalDateTime;
-import java.util.ArrayList;
-import java.util.List;
-
-@Entity
-@Data
-@Builder
-@AllArgsConstructor
-@NoArgsConstructor
-public class Chat {
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    private String title;
-
-    @Column(name = "id_owner", nullable = false)
-    private Long idOwner;
-
-    @CreationTimestamp
-    private LocalDateTime createdAt;
-
-    @OrderBy("createdAt ASC")
-    @OneToMany(mappedBy = "chat", fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
-    private List<ChatEntry> history = new ArrayList<>();
-
-
-    public void addChatEntry(ChatEntry entry) {
-        history.add(entry);
-    }
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/entity/ChatEntry.java
+++ b/rag-service/src/main/java/com/balex/rag/model/entity/ChatEntry.java
@@ -1,51 +0,0 @@
-package com.balex.rag.model.entity;
-
-import com.balex.rag.model.enums.Role;
-import com.fasterxml.jackson.annotation.JsonIgnore;
-import jakarta.persistence.*;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-import org.hibernate.annotations.CreationTimestamp;
-import org.springframework.ai.chat.messages.Message;
-
-import java.time.LocalDateTime;
-
-@Entity
-@Data
-@Builder
-@AllArgsConstructor
-@NoArgsConstructor
-public class ChatEntry {
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    @Column(columnDefinition = "TEXT")
-    private String content;
-
-    @Enumerated(EnumType.STRING)
-    private Role role;
-
-    @CreationTimestamp
-    private LocalDateTime createdAt;
-
-    @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "chat_id")
-    @JsonIgnore
-    private Chat chat;
-
-    public static ChatEntry toChatEntry(Message message) {
-        return ChatEntry.builder()
-                .role(Role.getRole(message.getMessageType().getValue()))
-                .content(message.getText())
-                .build();
-    }
-
-
-    public Message toMessage() {
-        return role.getMessage(content);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/model/entity/LoadedDocumentInfo.java
+++ b/rag-service/src/main/java/com/balex/rag/model/entity/LoadedDocumentInfo.java
@@ -1,15 +0,0 @@
-package com.balex.rag.model.entity;
-
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.io.Serializable;
-
-@Data
-@AllArgsConstructor
-@NoArgsConstructor
-public class LoadedDocumentInfo implements Serializable {
-    Long id;
-    String fileName;
-}
--- a/rag-service/src/main/java/com/balex/rag/model/entity/User.java
+++ b/rag-service/src/main/java/com/balex/rag/model/entity/User.java
@@ -1,60 +0,0 @@
-package com.balex.rag.model.entity;
-
-import com.balex.rag.model.enums.RegistrationStatus;
-import jakarta.persistence.*;
-import jakarta.validation.constraints.Size;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.Setter;
-
-import java.time.LocalDateTime;
-import java.util.Collection;
-import java.util.List;
-
-@Entity
-@Table(name = "users")
-@Getter
-@Setter
-@NoArgsConstructor
-public class User {
-    public static final String ID_FIELD = "id";
-    public static final String USERNAME_NAME_FIELD = "username";
-    public static final String EMAIL_NAME_FIELD = "email";
-    public static final String DELETED_FIELD = "deleted";
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Integer id;
-
-    @Size(max = 30)
-    @Column(nullable = false, length = 30)
-    private String username;
-
-    @Size(max = 80)
-    @Column(nullable = false, length = 80)
-    private String password;
-
-    @Size(max = 50)
-    @Column(nullable = false, length = 50)
-    private String email;
-
-    @Column(nullable = false, updatable = false)
-    private LocalDateTime created = LocalDateTime.now();
-
-    @Column(nullable = false)
-    private LocalDateTime updated = LocalDateTime.now();
-
-    @Column(name = "last_login")
-    private LocalDateTime lastLogin;
-
-    @Column(nullable = false)
-    private Boolean deleted = false;
-
-    @Enumerated(EnumType.STRING)
-    @Column(name = "registration_status", nullable = false)
-    private RegistrationStatus registrationStatus;
-
-
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/entity/UserInfo.java
+++ b/rag-service/src/main/java/com/balex/rag/model/entity/UserInfo.java
@@ -1,32 +0,0 @@
-package com.balex.rag.model.entity;
-
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.io.Serializable;
-import java.util.List;
-
-import static com.balex.rag.model.constants.ApiConstants.MAX_FILES_ALLOWED_FOR_LOAD;
-
-@Data
-@NoArgsConstructor
-public class UserInfo implements Serializable {
-
-    Integer id;
-
-    String username;
-
-    String email;
-
-    List<LoadedDocumentInfo> loadedFiles;
-
-    Integer maxLoadedFiles = MAX_FILES_ALLOWED_FOR_LOAD;
-
-    public UserInfo(Integer id, String username, String email, List<LoadedDocumentInfo> loadedFiles) {
-        this.id = id;
-        this.username = username;
-        this.email = email;
-        this.loadedFiles = loadedFiles;
-    }
-
-}
--- a/rag-service/src/main/java/com/balex/rag/model/enums/RegistrationStatus.java
+++ b/rag-service/src/main/java/com/balex/rag/model/enums/RegistrationStatus.java
@@ -1,8 +0,0 @@
-package com.balex.rag.model.enums;
-
-public enum RegistrationStatus {
-    ACTIVE,
-    INACTIVE
-}
-
-
--- a/rag-service/src/main/java/com/balex/rag/model/enums/ResponseStyle.java
+++ b/rag-service/src/main/java/com/balex/rag/model/enums/ResponseStyle.java
@@ -1,13 +0,0 @@
-package com.balex.rag.model.enums;
-
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-
-@RequiredArgsConstructor
-@Getter
-public enum ResponseStyle {
-    CONCISE("Answer briefly."),
-    DETAILED("Provide detailed explanations.");
-
-    private final String instruction;
-}
--- a/rag-service/src/main/java/com/balex/rag/model/enums/Role.java
+++ b/rag-service/src/main/java/com/balex/rag/model/enums/Role.java
@@ -1,41 +0,0 @@
-package com.balex.rag.model.enums;
-
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-import org.springframework.ai.chat.messages.AssistantMessage;
-import org.springframework.ai.chat.messages.Message;
-import org.springframework.ai.chat.messages.SystemMessage;
-import org.springframework.ai.chat.messages.UserMessage;
-
-import java.util.Arrays;
-
-@RequiredArgsConstructor
-@Getter
-public enum Role {
-
-    USER("user") {
-        @Override
-        public Message getMessage(String message) {
-            return new UserMessage(message);
-        }
-    }, ASSISTANT("assistant") {
-        @Override
-        public Message getMessage(String message) {
-            return new AssistantMessage(message);
-        }
-    }, SYSTEM("system") {
-        @Override
-        public Message getMessage(String prompt) {
-            return new SystemMessage(prompt);
-        }
-    };
-
-    private final String role;
-
-
-    public static Role getRole(String roleName) {
-        return Arrays.stream(Role.values()).filter(role -> role.role.equals(roleName)).findFirst().orElseThrow();
-    }
-
-    public abstract Message getMessage(String prompt);
-}
--- a/rag-service/src/main/java/com/balex/rag/model/exception/DataExistException.java
+++ b/rag-service/src/main/java/com/balex/rag/model/exception/DataExistException.java
@@ -1,10 +0,0 @@
-package com.balex.rag.model.exception;
-
-public class DataExistException extends RuntimeException {
-
-    public DataExistException(String message) {
-        super(message);
-    }
-}
-
-
--- a/rag-service/src/main/java/com/balex/rag/model/exception/InvalidDataException.java
+++ b/rag-service/src/main/java/com/balex/rag/model/exception/InvalidDataException.java
@@ -1,10 +0,0 @@
-package com.balex.rag.model.exception;
-
-public class InvalidDataException extends RuntimeException {
-
-    public InvalidDataException(String message) {
-        super(message);
-    }
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/exception/InvalidPasswordException.java
+++ b/rag-service/src/main/java/com/balex/rag/model/exception/InvalidPasswordException.java
@@ -1,10 +0,0 @@
-package com.balex.rag.model.exception;
-
-public class InvalidPasswordException extends RuntimeException {
-
-    public InvalidPasswordException(String message) {
-        super(message);
-    }
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/exception/NotFoundException.java
+++ b/rag-service/src/main/java/com/balex/rag/model/exception/NotFoundException.java
@@ -1,11 +0,0 @@
-package com.balex.rag.model.exception;
-
-public class NotFoundException extends RuntimeException {
-
-    public NotFoundException(String message) {
-        super(message);
-    }
-
-}
-
-
--- a/rag-service/src/main/java/com/balex/rag/model/exception/RerankException.java
+++ b/rag-service/src/main/java/com/balex/rag/model/exception/RerankException.java
@@ -1,10 +0,0 @@
-package com.balex.rag.model.exception;
-
-public class RerankException extends RuntimeException {
-
-    public RerankException(String message) {
-        super(message);
-    }
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/exception/UploadException.java
+++ b/rag-service/src/main/java/com/balex/rag/model/exception/UploadException.java
@@ -1,12 +0,0 @@
-package com.balex.rag.model.exception;
-
-public class UploadException extends RuntimeException {
-
-    public UploadException(String message) {
-        super(message);
-    }
-
-    public UploadException(String message, Throwable cause) {
-        super(message, cause);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/model/request/user/NewUserRequest.java
+++ b/rag-service/src/main/java/com/balex/rag/model/request/user/NewUserRequest.java
@@ -1,27 +0,0 @@
-package com.balex.rag.model.request.user;
-
-import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.Size;
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-@Data
-@AllArgsConstructor
-@NoArgsConstructor
-public class NewUserRequest {
-
-    @NotBlank(message = "Username cannot be empty")
-    @Size(max = 30)
-    private String username;
-
-    @NotBlank(message = "Password cannot be empty")
-    @Size(max = 50)
-    private String password;
-
-    @NotBlank(message = "Email cannot be empty")
-    @Size(max = 50)
-    private String email;
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/request/user/UpdateUserRequest.java
+++ b/rag-service/src/main/java/com/balex/rag/model/request/user/UpdateUserRequest.java
@@ -1,17 +0,0 @@
-package com.balex.rag.model.request.user;
-
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.io.Serializable;
-
-@Data
-@AllArgsConstructor
-@NoArgsConstructor
-public class UpdateUserRequest implements Serializable {
-
-    private String username;
-    private String email;
-
-}
--- a/rag-service/src/main/java/com/balex/rag/model/response/PaginationResponse.java
+++ b/rag-service/src/main/java/com/balex/rag/model/response/PaginationResponse.java
@@ -1,30 +0,0 @@
-package com.balex.rag.model.response;
-
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.io.Serializable;
-import java.util.List;
-
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class PaginationResponse<T> implements Serializable {
-    private List<T> content;
-    private Pagination pagination;
-
-    @Data
-    @Builder
-    @NoArgsConstructor
-    @AllArgsConstructor
-    public static class Pagination implements Serializable {
-        private long total;
-        private int limit;
-        private int page;
-        private int pages;
-    }
-}
-
--- a/rag-service/src/main/java/com/balex/rag/model/response/RagResponse.java
+++ b/rag-service/src/main/java/com/balex/rag/model/response/RagResponse.java
@@ -1,32 +0,0 @@
-package com.balex.rag.model.response;
-
-import com.balex.rag.model.constants.ApiMessage;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.Setter;
-import org.apache.commons.lang3.StringUtils;
-
-import java.io.Serializable;
-
-@Getter
-@Setter
-@NoArgsConstructor
-@AllArgsConstructor
-
-public class RagResponse<P extends Serializable> implements Serializable {
-    private String message;
-    private P payload;
-    private boolean success;
-
-    public static <P extends Serializable> RagResponse<P> createSuccessful(P payload) {
-        return new RagResponse<>(StringUtils.EMPTY, payload, true);
-    }
-
-    public static <P extends Serializable> RagResponse<P> createSuccessfulWithNewToken(P payload) {
-        return new RagResponse<>(ApiMessage.TOKEN_CREATED_OR_UPDATED.getMessage(), payload, true);
-    }
-
-}
-
-
--- a/rag-service/src/main/java/com/balex/rag/repo/ChatEntryRepository.java
+++ b/rag-service/src/main/java/com/balex/rag/repo/ChatEntryRepository.java
@@ -1,13 +0,0 @@
-package com.balex.rag.repo;
-
-import com.balex.rag.model.entity.ChatEntry;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-
-import java.util.List;
-
-@Repository
-public interface ChatEntryRepository extends JpaRepository<ChatEntry, Long> {
-
-    List<ChatEntry> findByChatIdOrderByCreatedAtAsc(Long chatId);
-}
--- a/rag-service/src/main/java/com/balex/rag/repo/ChatRepository.java
+++ b/rag-service/src/main/java/com/balex/rag/repo/ChatRepository.java
@@ -1,11 +0,0 @@
-package com.balex.rag.repo;
-
-import com.balex.rag.model.entity.Chat;
-import org.springframework.data.jpa.repository.JpaRepository;
-
-import java.util.List;
-
-public interface ChatRepository extends JpaRepository<Chat, Long> {
-    List<Chat> findByIdOwnerOrderByCreatedAtDesc(Long idOwner);
-}
-
--- a/rag-service/src/main/java/com/balex/rag/repo/DocumentRepository.java
+++ b/rag-service/src/main/java/com/balex/rag/repo/DocumentRepository.java
@@ -1,15 +0,0 @@
-package com.balex.rag.repo;
-
-import com.balex.rag.model.LoadedDocument;
-import org.springframework.data.jpa.repository.JpaRepository;
-
-import java.util.List;
-
-public interface DocumentRepository extends JpaRepository<LoadedDocument, Long> {
-
-    boolean existsByFilenameAndContentHash(String filename, String contentHash);
-
-    List<LoadedDocument> findByUserId(Integer userId);
-
-}
-
--- a/rag-service/src/main/java/com/balex/rag/repo/UserRepository.java
+++ b/rag-service/src/main/java/com/balex/rag/repo/UserRepository.java
@@ -1,27 +0,0 @@
-package com.balex.rag.repo;
-
-import com.balex.rag.model.entity.User;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
-import org.springframework.stereotype.Repository;
-
-import java.util.Optional;
-
-@Repository
-public interface UserRepository extends JpaRepository<User, Integer>, JpaSpecificationExecutor<User> {
-
-    boolean existsByEmail(String email);
-
-    boolean existsByUsername(String username);
-
-    Optional<User> findByIdAndDeletedFalse (Integer id);
-
-    Optional<User> findUserByEmailAndDeletedFalse(String email);
-
-    Optional<User> findByEmail(String email);
-
-    Optional<User> findByUsername(String username);
-
-}
-
-
--- a/rag-service/src/main/java/com/balex/rag/repo/VectorStoreRepository.java
+++ b/rag-service/src/main/java/com/balex/rag/repo/VectorStoreRepository.java
@@ -1,13 +0,0 @@
-package com.balex.rag.repo;
-
-import org.springframework.stereotype.Repository;
-
-import java.util.List;
-
-@Repository
-public interface VectorStoreRepository {
-
-    void deleteBySourceIn(List<String> sources);
-
-    void deleteByUserId(Long userId);
-}
--- a/rag-service/src/main/java/com/balex/rag/repo/impl/VectorStoreRepositoryImpl.java
+++ b/rag-service/src/main/java/com/balex/rag/repo/impl/VectorStoreRepositoryImpl.java
@@ -1,36 +0,0 @@
-package com.balex.rag.repo.impl;
-
-import com.balex.rag.repo.VectorStoreRepository;
-import lombok.RequiredArgsConstructor;
-import org.springframework.jdbc.core.JdbcTemplate;
-import org.springframework.stereotype.Repository;
-
-import java.util.List;
-
-@Repository
-@RequiredArgsConstructor
-public class VectorStoreRepositoryImpl implements VectorStoreRepository {
-
-    private final JdbcTemplate jdbcTemplate;
-
-    @Override
-    public void deleteBySourceIn(List<String> sources) {
-        if (sources == null || sources.isEmpty()) {
-            return;
-        }
-
-        String placeholders = String.join(",", sources.stream()
-                .map(s -> "?")
-                .toList());
-
-        String sql = "DELETE FROM vector_store WHERE metadata->>'source' IN (" + placeholders + ")";
-
-        jdbcTemplate.update(sql, sources.toArray());
-    }
-
-    @Override
-    public void deleteByUserId(Long userId) {
-        String sql = "DELETE FROM vector_store WHERE (metadata->>'user_id')::bigint = ?";
-        jdbcTemplate.update(sql, userId);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/security/validation/AccessValidator.java
+++ b/rag-service/src/main/java/com/balex/rag/security/validation/AccessValidator.java
@@ -1,22 +0,0 @@
-package com.balex.rag.security.validation;
-
-import com.balex.rag.model.constants.ApiErrorMessage;
-import com.balex.rag.repo.UserRepository;
-import lombok.RequiredArgsConstructor;
-import lombok.SneakyThrows;
-import org.springframework.stereotype.Component;
-
-import java.nio.file.AccessDeniedException;
-
-@Component
-@RequiredArgsConstructor
-public class AccessValidator {
-    private final UserRepository userRepository;
-
-    @SneakyThrows
-    public void validateOwnerAccess(Integer ownerId, Integer currentUserId) {
-        if (!currentUserId.equals(ownerId)) {
-            throw new AccessDeniedException(ApiErrorMessage.HAVE_NO_ACCESS.getMessage());
-        }
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/service/ChatEntryService.java
+++ b/rag-service/src/main/java/com/balex/rag/service/ChatEntryService.java
@@ -1,12 +0,0 @@
-package com.balex.rag.service;
-
-import com.balex.rag.model.entity.ChatEntry;
-
-import java.util.List;
-
-public interface ChatEntryService {
-
-    List<ChatEntry> getEntriesByChatId(Long chatId);
-
-    ChatEntry addUserEntry(Long chatId, String content, boolean onlyContext, double topP, Long userId);
-}
--- a/rag-service/src/main/java/com/balex/rag/service/ChatService.java
+++ b/rag-service/src/main/java/com/balex/rag/service/ChatService.java
@@ -1,19 +0,0 @@
-package com.balex.rag.service;
-
-import com.balex.rag.model.entity.Chat;
-import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
-
-import java.util.List;
-
-public interface ChatService {
-
-    Chat createNewChat(String title, Long ownerId);
-
-    List<Chat> getAllChatsByOwner(Long ownerId);
-
-    Chat getChat(Long chatId, Long ownerId);
-
-    void deleteChat(Long chatId, Long ownerId);
-
-    SseEmitter proceedInteractionWithStreaming(Long chatId, String userPrompt);
-}
--- a/rag-service/src/main/java/com/balex/rag/service/EventPublisher.java
+++ b/rag-service/src/main/java/com/balex/rag/service/EventPublisher.java
@@ -1,12 +0,0 @@
-package com.balex.rag.service;
-
-public interface EventPublisher {
-
-    void publishChatCreated(String userId, String chatId);
-
-    void publishChatDeleted(String userId, String chatId);
-
-    void publishQuerySent(String userId, String chatId);
-
-    void publishUserCreated(String userId);
-}
--- a/rag-service/src/main/java/com/balex/rag/service/PostgresChatMemory.java
+++ b/rag-service/src/main/java/com/balex/rag/service/PostgresChatMemory.java
@@ -1,51 +0,0 @@
-package com.balex.rag.service;
-
-import com.balex.rag.model.entity.Chat;
-import com.balex.rag.model.entity.ChatEntry;
-import com.balex.rag.repo.ChatRepository;
-import lombok.Builder;
-import org.springframework.ai.chat.memory.ChatMemory;
-import org.springframework.ai.chat.messages.Message;
-
-import java.util.List;
-
-@Builder
-public class PostgresChatMemory implements ChatMemory {
-
-    private ChatRepository chatMemoryRepository;
-
-    private int maxMessages;
-
-    @Override
-    public void add(String conversationId, List<Message> messages) {
-//        Chat chat = chatMemoryRepository.findById(Long.valueOf(conversationId)).orElseThrow();
-//        for (Message message : messages) {
-//            chat.addChatEntry(ChatEntry.toChatEntry(message));
-//        }
-//        chatMemoryRepository.save(chat);
-
-        // No-op: messages are saved manually in ChatEntryServiceImpl
-
-    }
-
-
-    @Override
-    public List<Message> get(String conversationId) {
-        Chat chat = chatMemoryRepository.findById(Long.valueOf(conversationId)).orElseThrow();
-        Long messagesToSkip= (long) Math.max(0, chat.getHistory().size() - maxMessages);
-        return chat.getHistory().stream()
-                .skip(messagesToSkip)
-                //.sorted(Comparator.comparing(ChatEntry::getCreatedAt))
-                //.sorted(Comparator.comparing(ChatEntry::getCreatedAt).reversed())
-                .map(ChatEntry::toMessage)
-                .limit(maxMessages)
-                .toList();
-
-    }
-
-    @Override
-    public void clear(String conversationId) {
-        //not implemented
-    }
-}
-
--- a/rag-service/src/main/java/com/balex/rag/service/UserDocumentService.java
+++ b/rag-service/src/main/java/com/balex/rag/service/UserDocumentService.java
@@ -1,10 +0,0 @@
-package com.balex.rag.service;
-
-import org.springframework.web.multipart.MultipartFile;
-import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
-
-import java.util.List;
-
-public interface UserDocumentService {
-    SseEmitter processUploadedFilesWithSse(List<MultipartFile> files, Long userId);
-}
--- a/rag-service/src/main/java/com/balex/rag/service/UserService.java
+++ b/rag-service/src/main/java/com/balex/rag/service/UserService.java
@@ -1,28 +0,0 @@
-package com.balex.rag.service;
-
-import com.balex.rag.model.dto.UserDTO;
-import com.balex.rag.model.dto.UserSearchDTO;
-import com.balex.rag.model.entity.UserInfo;
-import com.balex.rag.model.request.user.NewUserRequest;
-import com.balex.rag.model.request.user.UpdateUserRequest;
-import com.balex.rag.model.response.PaginationResponse;
-import com.balex.rag.model.response.RagResponse;
-import jakarta.validation.constraints.NotNull;
-import org.springframework.data.domain.Pageable;
-
-public interface UserService {
-
-    RagResponse<UserDTO> getById(@NotNull Integer userId);
-
-    RagResponse<UserDTO> createUser(@NotNull NewUserRequest request);
-
-    RagResponse<UserDTO> updateUser(@NotNull Integer postId, @NotNull UpdateUserRequest request);
-
-    void softDeleteUser(Integer userId, Integer currentUserId);
-
-    RagResponse<PaginationResponse<UserSearchDTO>> findAllUsers(Pageable pageable);
-
-    RagResponse<UserInfo> getUserInfo(Integer userId);
-
-    RagResponse<Integer> deleteUserDocuments(Integer userId);
-}
--- a/rag-service/src/main/java/com/balex/rag/service/autostart/DocumentLoaderService.java
+++ b/rag-service/src/main/java/com/balex/rag/service/autostart/DocumentLoaderService.java
@@ -1,85 +0,0 @@
-//package com.balex.rag.service.autostart;
-//
-//import com.balex.rag.model.LoadedDocument;
-//import com.balex.rag.repo.DocumentRepository;
-//import lombok.SneakyThrows;
-//import org.springframework.ai.document.Document;
-//import org.springframework.ai.reader.TextReader;
-//import org.springframework.ai.transformer.splitter.TokenTextSplitter;
-//import org.springframework.ai.vectorstore.VectorStore;
-//import org.springframework.beans.factory.annotation.Autowired;
-//import org.springframework.boot.CommandLineRunner;
-//import org.springframework.core.io.Resource;
-//import org.springframework.core.io.support.ResourcePatternResolver;
-//import org.springframework.data.util.Pair;
-//import org.springframework.stereotype.Service;
-//import org.springframework.util.DigestUtils;
-//
-//import java.util.Arrays;
-//import java.util.List;
-//
-//@Service
-//public class DocumentLoaderService implements CommandLineRunner {
-//
-//    @Autowired
-//    private DocumentRepository documentRepository;
-//
-//    @Autowired
-//    private ResourcePatternResolver resolver;
-//
-//    @Autowired
-//    private VectorStore vectorStore;
-//
-//
-//    @SneakyThrows
-//    public void loadDocuments() {
-//        List<Resource> resources = Arrays.stream(resolver.getResources("classpath:/knowledgebase/**/*.txt")).toList();
-//
-//        resources.stream()
-//                .map(r -> Pair.of(r, calcContentHash(r)))
-//                .filter(p -> !documentRepository.existsByFilenameAndContentHash(p.getFirst().getFilename(), p.getSecond()))
-//                .forEach(p -> {
-//                    Resource resource = p.getFirst();
-//                    List<Document> docs = new TextReader(resource).get();
-//                    TokenTextSplitter splitter = TokenTextSplitter.builder().withChunkSize(200).build();
-//                    List<Document> chunks = splitter.apply(docs);
-//
-//                    for (Document c : chunks) {
-//                        acceptWithRetry(vectorStore, List.of(c), 3, 1500);
-//                    }
-//
-//                    LoadedDocument loaded = LoadedDocument.builder()
-//                            .documentType("txt")
-//                            .chunkCount(chunks.size())
-//                            .filename(resource.getFilename())
-//                            .contentHash(p.getSecond())
-//                            .build();
-//                    documentRepository.save(loaded);
-//                });
-//
-//    }
-//
-//    private static void acceptWithRetry(VectorStore vs, List<Document> part, int attempts, long sleepMs) {
-//        RuntimeException last = null;
-//        for (int i = 0; i < attempts; i++) {
-//            try {
-//                vs.accept(part);
-//                return;
-//            } catch (RuntimeException e) {
-//                last = e;
-//                try { Thread.sleep(sleepMs); } catch (InterruptedException ignored) {}
-//            }
-//        }
-//        throw last;
-//    }
-//
-//    @SneakyThrows
-//    private String calcContentHash(Resource resource) {
-//        return DigestUtils.md5DigestAsHex(resource.getInputStream());
-//    }
-//
-//    @Override
-//    public void run(String... args) {
-//        loadDocuments();
-//    }
-//}
--- a/rag-service/src/main/java/com/balex/rag/service/impl/ChatEntryServiceImpl.java
+++ b/rag-service/src/main/java/com/balex/rag/service/impl/ChatEntryServiceImpl.java
@@ -1,85 +0,0 @@
-package com.balex.rag.service.impl;
-
-import com.balex.rag.model.entity.Chat;
-import com.balex.rag.model.entity.ChatEntry;
-import com.balex.rag.model.enums.Role;
-import com.balex.rag.repo.ChatEntryRepository;
-import com.balex.rag.repo.ChatRepository;
-import com.balex.rag.service.ChatEntryService;
-import jakarta.persistence.EntityNotFoundException;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.ai.chat.client.ChatClient;
-import org.springframework.ai.chat.memory.ChatMemory;
-import org.springframework.ai.openai.OpenAiChatOptions;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import com.balex.rag.config.RagDefaultsProperties;
-
-import java.util.List;
-
-@Slf4j
-@Service
-@RequiredArgsConstructor
-public class ChatEntryServiceImpl implements ChatEntryService {
-
-    private final ChatEntryRepository chatEntryRepository;
-    private final ChatRepository chatRepository;
-    private final ChatClient chatClient;
-    private final RagDefaultsProperties ragDefaults;
-
-    @Override
-    public List<ChatEntry> getEntriesByChatId(Long chatId) {
-        return chatEntryRepository.findByChatIdOrderByCreatedAtAsc(chatId);
-    }
-
-    @Override
-    @Transactional
-    public ChatEntry addUserEntry(Long chatId, String content, boolean onlyContext, double topP, Long userId) {
-        Chat chat = chatRepository.findById(chatId)
-                .orElseThrow(() -> new EntityNotFoundException("Chat not found with id: " + chatId));
-
-        ChatEntry userEntry = ChatEntry.builder()
-                .chat(chat)
-                .content(content)
-                .role(Role.USER)
-                .build();
-        chatEntryRepository.save(userEntry);
-
-        String systemPrompt = onlyContext
-                ? """
-                  The question may be about a CONSEQUENCE of a fact from Context.
-                  ALWAYS connect: Context fact → question.
-                  No connection, even indirect = answer ONLY: "The request is not related to the uploaded context."
-                  Connection exists = answer using ONLY the context.
-                  Do NOT use any knowledge outside the provided context.
-                  """
-                : """
-                  The question may be about a CONSEQUENCE of a fact from Context.
-                  ALWAYS connect: Context fact → question.
-                  If context contains relevant information, use it in your answer.
-                  If context does not contain relevant information, answer using your general knowledge.
-                  """;
-
-        String response = chatClient.prompt()
-                .system(systemPrompt)
-                .user(content)
-                .advisors(a -> a
-                        .param(ChatMemory.CONVERSATION_ID, String.valueOf(chatId))
-                        .param("USER_ID", userId))
-                .options(OpenAiChatOptions.builder()
-                        .model(ragDefaults.model())
-                        .topP(topP)
-                        .build())
-                .call()
-                .content();
-
-        ChatEntry assistantEntry = ChatEntry.builder()
-                .chat(chat)
-                .content(response)
-                .role(Role.ASSISTANT)
-                .build();
-
-        return chatEntryRepository.save(assistantEntry);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/service/impl/ChatServiceImpl.java
+++ b/rag-service/src/main/java/com/balex/rag/service/impl/ChatServiceImpl.java
@@ -1,62 +0,0 @@
-package com.balex.rag.service.impl;
-
-import com.balex.rag.model.entity.Chat;
-import com.balex.rag.repo.ChatRepository;
-import com.balex.rag.service.ChatService;
-import lombok.RequiredArgsConstructor;
-import lombok.SneakyThrows;
-import org.springframework.ai.chat.client.ChatClient;
-import org.springframework.ai.chat.memory.ChatMemory;
-import org.springframework.ai.chat.model.ChatResponse;
-import org.springframework.http.HttpStatus;
-import org.springframework.stereotype.Service;
-import org.springframework.web.server.ResponseStatusException;
-import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
-
-import java.util.List;
-
-@Service
-@RequiredArgsConstructor
-public class ChatServiceImpl implements ChatService {
-
-    private final ChatRepository chatRepo;
-    private final ChatClient chatClient;
-
-    public List<Chat> getAllChatsByOwner(Long ownerId) {
-        return chatRepo.findByIdOwnerOrderByCreatedAtDesc(ownerId);
-    }
-
-    public Chat createNewChat(String title, Long ownerId) {
-        Chat chat = Chat.builder().title(title).idOwner(ownerId).build();
-        chatRepo.save(chat);
-        return chat;
-    }
-
-    public Chat getChat(Long chatId, Long ownerId) {
-        Chat chat = chatRepo.findById(chatId).orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND, "Chat not found"));
-        if (!chat.getIdOwner().equals(ownerId)) {
-            throw new ResponseStatusException(HttpStatus.FORBIDDEN, "Access denied");
-        }
-        return chat;
-    }
-
-    public void deleteChat(Long chatId, Long ownerId) {
-        Chat chat = getChat(chatId, ownerId);
-        chatRepo.deleteById(chat.getId());
-    }
-
-    public SseEmitter proceedInteractionWithStreaming(Long chatId, String userPrompt) {
-        SseEmitter sseEmitter = new SseEmitter(0L);
-        final StringBuilder answer = new StringBuilder();
-
-        chatClient.prompt(userPrompt).advisors(advisorSpec -> advisorSpec.param(ChatMemory.CONVERSATION_ID, chatId)).stream().chatResponse().subscribe((ChatResponse response) -> processToken(response, sseEmitter, answer), sseEmitter::completeWithError, sseEmitter::complete);
-        return sseEmitter;
-    }
-
-    @SneakyThrows
-    private static void processToken(ChatResponse response, SseEmitter emitter, StringBuilder answer) {
-        var token = response.getResult().getOutput();
-        emitter.send(token);
-        answer.append(token.getText());
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/service/impl/DocumentTransactionalHelper.java
+++ b/rag-service/src/main/java/com/balex/rag/service/impl/DocumentTransactionalHelper.java
@@ -1,38 +0,0 @@
-package com.balex.rag.service.impl;
-
-import org.springframework.stereotype.Component;
-import org.springframework.transaction.annotation.Transactional;
-import org.springframework.web.multipart.MultipartFile;
-
-/**
- * Helper component to handle transactional file processing.
- *
- * This separate bean is necessary because Spring's @Transactional relies on proxies,
- * and self-invocation within the same class bypasses the proxy, causing transactions
- * to not be applied.
- */
-@Component
-public class DocumentTransactionalHelper {
-
-    /**
-     * Processes a single file within a transaction boundary.
-     *
-     * @param file the file to process
-     * @param userId the user ID
-     * @param filename the filename
-     * @param processor the processing function to execute
-     * @return true if file was processed, false if skipped
-     */
-    @Transactional
-    public boolean processFileInTransaction(MultipartFile file,
-                                            Long userId,
-                                            String filename,
-                                            FileProcessor processor) {
-        return processor.process(file, userId, filename);
-    }
-
-    @FunctionalInterface
-    public interface FileProcessor {
-        boolean process(MultipartFile file, Long userId, String filename);
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/service/impl/EventPublisherImpl.java
+++ b/rag-service/src/main/java/com/balex/rag/service/impl/EventPublisherImpl.java
@@ -1,68 +0,0 @@
-package com.balex.rag.service.impl;
-
-import com.balex.rag.model.dto.UserEvent;
-import com.balex.rag.model.dto.UserEvent.EventType;
-import com.balex.rag.service.EventPublisher;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.stereotype.Service;
-
-@Slf4j
-@Service
-@RequiredArgsConstructor
-public class EventPublisherImpl implements EventPublisher {
-
-    private final KafkaTemplate<String, UserEvent> kafkaTemplate;
-
-    @Value("${analytics.kafka.topic:user-events}")
-    private String topic;
-
-    @Override
-    public void publishChatCreated(String userId, String chatId) {
-        publish(UserEvent.builder()
-                .type(EventType.CHAT_CREATED)
-                .userId(userId)
-                .chatId(chatId)
-                .build());
-    }
-
-    @Override
-    public void publishChatDeleted(String userId, String chatId) {
-        publish(UserEvent.builder()
-                .type(EventType.CHAT_DELETED)
-                .userId(userId)
-                .chatId(chatId)
-                .build());
-    }
-
-    @Override
-    public void publishQuerySent(String userId, String chatId) {
-        publish(UserEvent.builder()
-                .type(EventType.QUERY_SENT)
-                .userId(userId)
-                .chatId(chatId)
-                .build());
-    }
-
-
-    private void publish(UserEvent event) {
-        kafkaTemplate.send(topic, event.getUserId(), event)
-                .whenComplete((result, ex) -> {
-                    if (ex != null) {
-                        log.error("Failed to send event {}: {}", event.getType(), ex.getMessage());
-                    } else {
-                        log.info("Event sent: type={}, userId={}", event.getType(), event.getUserId());
-                    }
-                });
-    }
-
-    @Override
-    public void publishUserCreated(String userId) {
-        publish(UserEvent.builder()
-                .type(EventType.USER_CREATED)
-                .userId(userId)
-                .build());
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/service/impl/UserDocumentServiceImpl.java
+++ b/rag-service/src/main/java/com/balex/rag/service/impl/UserDocumentServiceImpl.java
@@ -1,256 +0,0 @@
-package com.balex.rag.service.impl;
-
-import com.balex.rag.model.LoadedDocument;
-import com.balex.rag.model.UploadProgress;
-import com.balex.rag.model.constants.ApiLogMessage;
-import com.balex.rag.model.exception.UploadException;
-import com.balex.rag.repo.DocumentRepository;
-import com.balex.rag.service.UserDocumentService;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.ai.document.Document;
-import org.springframework.ai.reader.TextReader;
-import org.springframework.ai.transformer.splitter.TokenTextSplitter;
-import org.springframework.ai.vectorstore.VectorStore;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.io.ByteArrayResource;
-import org.springframework.core.io.Resource;
-import org.springframework.retry.annotation.Backoff;
-import org.springframework.retry.annotation.Retryable;
-import org.springframework.stereotype.Service;
-import org.springframework.web.multipart.MultipartFile;
-import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
-import org.springframework.ai.reader.tika.TikaDocumentReader;
-
-import java.io.IOException;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.util.HexFormat;
-import java.util.List;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-import static com.balex.rag.model.constants.ApiConstants.EMPTY_FILENAME;
-import static com.balex.rag.model.constants.ApiErrorMessage.UPLOADED_FILENAME_EMPTY;
-import static com.balex.rag.model.constants.ApiErrorMessage.UPLOAD_FILE_READ_ERROR;
-
-@Slf4j
-@Service
-@RequiredArgsConstructor
-public class UserDocumentServiceImpl implements UserDocumentService {
-
-    private final DocumentRepository documentRepository;
-    private final VectorStore vectorStore;
-    private final DocumentTransactionalHelper transactionalHelper;
-
-    private static final String TXT_EXTENSION = "txt";
-    private static final String USER_ID_FIELD_NAME = "user_id";
-
-    private static final String STATUS_PROCESSING = "processing";
-    private static final String STATUS_COMPLETED = "completed";
-    private static final String STATUS_SKIPPED = "skipped";
-    private static final Long SSE_EMITTER_TIMEOUT_IN_MILLIS = 120000L;
-
-    @Value("${app.document.chunk-size:200}")
-    private int chunkSize;
-
-    public SseEmitter processUploadedFilesWithSse(List<MultipartFile> files, Long userId) {
-        SseEmitter emitter = new SseEmitter(SSE_EMITTER_TIMEOUT_IN_MILLIS);
-
-        AtomicBoolean isCompleted = new AtomicBoolean(false);
-
-        emitter.onCompletion(() -> {
-            log.debug("SSE completed");
-            isCompleted.set(true);
-        });
-        emitter.onTimeout(() -> {
-            log.debug("SSE timeout");
-            isCompleted.set(true);
-        });
-        emitter.onError(e -> {
-            log.debug("SSE client disconnected: {}", e.getMessage());
-            isCompleted.set(true);
-        });
-
-        List<MultipartFile> validFiles = files.stream()
-                .filter(f -> !f.isEmpty())
-                .toList();
-
-        CompletableFuture.runAsync(() -> {
-            try {
-                int totalFiles = validFiles.size();
-                int processedCount = 0;
-
-                for (MultipartFile file : validFiles) {
-                    if (isCompleted.get()) {
-                        log.debug("Upload cancelled, stopping at file: {}", processedCount);
-                        return;
-                    }
-
-                    String filename = getFilename(file);
-
-                    sendProgress(emitter, isCompleted, processedCount, totalFiles, filename, STATUS_PROCESSING);
-
-                    if (isCompleted.get()) return;  // Проверка после отправки
-
-                    boolean processed = transactionalHelper.processFileInTransaction(
-                            file, userId, filename, this::processFileInternal);
-
-                    processedCount++;
-                    String status = processed ? STATUS_PROCESSING : STATUS_SKIPPED;
-                    sendProgress(emitter, isCompleted, processedCount, totalFiles, filename, status);
-                }
-
-                if (!isCompleted.get()) {
-                    try {
-                        emitter.send(SseEmitter.event()
-                                .data(UploadProgress.builder()
-                                        .percent(100)
-                                        .processedFiles(processedCount)
-                                        .totalFiles(totalFiles)
-                                        .currentFile("")
-                                        .status(STATUS_COMPLETED)
-                                        .build()));
-                        emitter.complete();
-                    } catch (IOException | IllegalStateException e) {
-                        log.debug("Could not send completion: {}", e.getMessage());
-                    }
-                }
-
-            } catch (Exception e) {
-                if (!isCompleted.get()) {
-                    log.error("SSE processing error", e);
-                    emitter.completeWithError(e);
-                }
-            }
-        });
-
-        return emitter;
-    }
-
-    private void sendProgress(SseEmitter emitter, AtomicBoolean isCompleted,
-                              int processed, int total, String filename, String status) {
-        if (isCompleted.get()) {
-            return;
-        }
-
-        try {
-            int percent = total > 0 ? (int) Math.round((double) processed / total * 100) : 0;
-
-            emitter.send(SseEmitter.event()
-                    .data(UploadProgress.builder()
-                            .percent(percent)
-                            .processedFiles(processed)
-                            .totalFiles(total)
-                            .currentFile(filename)
-                            .status(status)
-                            .build()));
-        } catch (IOException | IllegalStateException e) {
-            // Client disconnected - this is normal for cancel
-            log.debug("Client disconnected: {}", e.getMessage());
-            isCompleted.set(true);
-        }
-    }
-    boolean processFileInternal(MultipartFile file, Long userId, String filename) {
-        byte[] content;
-        try {
-            content = file.getBytes();
-        } catch (IOException e) {
-            throw new UploadException(UPLOAD_FILE_READ_ERROR + filename, e);
-        }
-
-        String contentHash = computeSha256Hash(content);
-
-        if (documentRepository.existsByFilenameAndContentHash(filename, contentHash)) {
-            log.debug("Skipping duplicate file: {} with hash: {}", filename, contentHash);
-            return false;
-        }
-
-        processTextAndStore(userId, filename, content, contentHash);
-        return true;
-    }
-
-    private void processTextAndStore(Long userId, String filename, byte[] content, String contentHash) {
-        Resource resource = new ByteArrayResource(content) {
-            @Override
-            public String getFilename() {
-                return filename;
-            }
-        };
-
-        List<Document> docs;
-        String ext = getExtensionOrTxt(filename);
-        if (ext.equals("txt")) {
-            docs = new TextReader(resource).get();
-        } else {
-            docs = new TikaDocumentReader(resource).get();
-        }
-
-        TokenTextSplitter splitter = TokenTextSplitter.builder()
-                .withChunkSize(chunkSize)
-                .build();
-        List<Document> chunks = splitter.apply(docs);
-
-        for (Document chunk : chunks) {
-            chunk.getMetadata().put(USER_ID_FIELD_NAME, userId);
-        }
-
-        storeInVectorDb(chunks);
-
-        LoadedDocument loaded = LoadedDocument.builder()
-                .documentType(getExtensionOrTxt(filename))
-                .chunkCount(chunks.size())
-                .filename(filename)
-                .contentHash(contentHash)
-                .userId(userId)
-                .build();
-
-        documentRepository.save(loaded);
-
-        log.info("Successfully processed file: {} with {} chunks for user: {}",
-                filename, chunks.size(), userId);
-    }
-
-    /**
-     * Stores documents in vector store with retry via Spring Retry.
-     */
-    @Retryable(
-            retryFor = RuntimeException.class,
-            maxAttemptsExpression = "${app.document.retry.max-attempts:3}",
-            backoff = @Backoff(
-                    delayExpression = "${app.document.retry.delay-ms:1500}",
-                    multiplier = 2
-            )
-    )
-    public void storeInVectorDb(List<Document> chunks) {
-        vectorStore.accept(chunks);
-    }
-
-    private String getFilename(MultipartFile file) {
-        String filename = file.getOriginalFilename();
-        if (filename == null || filename.isBlank()) {
-            log.trace(ApiLogMessage.NAME_OF_CURRENT_METHOD.getValue(), UPLOADED_FILENAME_EMPTY);
-            return EMPTY_FILENAME;
-        }
-        return filename;
-    }
-
-    private String getExtensionOrTxt(String filename) {
-        int idx = filename.lastIndexOf('.');
-        if (idx == -1 || idx == filename.length() - 1) {
-            return TXT_EXTENSION;
-        }
-        return filename.substring(idx + 1).toLowerCase();
-    }
-
-    private String computeSha256Hash(byte[] content) {
-        try {
-            MessageDigest digest = MessageDigest.getInstance("SHA-256");
-            byte[] hash = digest.digest(content);
-            return HexFormat.of().formatHex(hash);
-        } catch (NoSuchAlgorithmException e) {
-            throw new IllegalStateException("SHA-256 algorithm not available", e);
-        }
-    }
-
-}
--- a/rag-service/src/main/java/com/balex/rag/service/impl/UserServiceImpl.java
+++ b/rag-service/src/main/java/com/balex/rag/service/impl/UserServiceImpl.java
@@ -1,157 +0,0 @@
-package com.balex.rag.service.impl;
-
-import com.balex.rag.mapper.UserMapper;
-import com.balex.rag.model.LoadedDocument;
-import com.balex.rag.model.constants.ApiErrorMessage;
-import com.balex.rag.model.dto.UserDTO;
-import com.balex.rag.model.dto.UserSearchDTO;
-import com.balex.rag.model.entity.LoadedDocumentInfo;
-import com.balex.rag.model.entity.User;
-import com.balex.rag.model.entity.UserInfo;
-import com.balex.rag.model.exception.NotFoundException;
-import com.balex.rag.model.request.user.NewUserRequest;
-import com.balex.rag.model.request.user.UpdateUserRequest;
-import com.balex.rag.model.response.PaginationResponse;
-import com.balex.rag.model.response.RagResponse;
-import com.balex.rag.repo.DocumentRepository;
-import com.balex.rag.repo.UserRepository;
-import com.balex.rag.repo.VectorStoreRepository;
-import com.balex.rag.security.validation.AccessValidator;
-import com.balex.rag.service.UserService;
-import com.balex.rag.service.model.exception.DataExistException;
-import jakarta.validation.constraints.NotNull;
-import lombok.RequiredArgsConstructor;
-import org.springframework.data.domain.Page;
-import org.springframework.data.domain.Pageable;
-import org.springframework.security.crypto.password.PasswordEncoder;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-import java.util.List;
-
-@Service
-@RequiredArgsConstructor
-public class UserServiceImpl implements UserService {
-    private final UserRepository userRepository;
-    private final UserMapper userMapper;
-    private final PasswordEncoder passwordEncoder;
-    private final AccessValidator accessValidator;
-    private final DocumentRepository documentRepository;
-    private final VectorStoreRepository vectorStoreRepository;
-
-    @Override
-    @Transactional(readOnly = true)
-    public RagResponse<UserDTO> getById(@NotNull Integer userId) {
-        User user = userRepository.findByIdAndDeletedFalse(userId)
-                .orElseThrow(() -> new NotFoundException(ApiErrorMessage.USER_NOT_FOUND_BY_ID.getMessage(userId)));
-
-        return RagResponse.createSuccessful(userMapper.toDto(user));
-    }
-
-    @Override
-    @Transactional
-    public RagResponse<UserDTO> createUser(@NotNull NewUserRequest request) {
-        if (userRepository.existsByEmail(request.getEmail())) {
-            throw new DataExistException(ApiErrorMessage.EMAIL_ALREADY_EXISTS.getMessage(request.getEmail()));
-        }
-
-        if (userRepository.existsByUsername(request.getUsername())) {
-            throw new DataExistException(ApiErrorMessage.USERNAME_ALREADY_EXISTS.getMessage(request.getUsername()));
-        }
-
-        User user = userMapper.createUser(request);
-        user.setPassword(passwordEncoder.encode(request.getPassword()));
-        User savedUser = userRepository.save(user);
-
-        return RagResponse.createSuccessful(userMapper.toDto(savedUser));
-    }
-
-    @Override
-    @Transactional
-    public RagResponse<UserDTO> updateUser(@NotNull Integer userId, UpdateUserRequest request) {
-        User user = userRepository.findByIdAndDeletedFalse(userId)
-                .orElseThrow(() -> new NotFoundException(ApiErrorMessage.USER_NOT_FOUND_BY_ID.getMessage(userId)));
-
-        if (!user.getUsername().equals(request.getUsername()) && userRepository.existsByUsername(request.getUsername())) {
-            throw new DataExistException(ApiErrorMessage.USERNAME_ALREADY_EXISTS.getMessage(request.getUsername()));
-        }
-
-        if (!user.getEmail().equals(request.getEmail()) && userRepository.existsByEmail(request.getEmail())) {
-            throw new DataExistException(ApiErrorMessage.EMAIL_ALREADY_EXISTS.getMessage(request.getEmail()));
-        }
-
-        userMapper.updateUser(user, request);
-        user = userRepository.save(user);
-
-        return RagResponse.createSuccessful(userMapper.toDto(user));
-    }
-
-    @Override
-    @Transactional
-    public void softDeleteUser(Integer userId, Integer currentUserId) {
-        User user = userRepository.findByIdAndDeletedFalse(userId)
-                .orElseThrow(() -> new NotFoundException(ApiErrorMessage.USER_NOT_FOUND_BY_ID.getMessage(userId)));
-
-        accessValidator.validateOwnerAccess(userId, currentUserId);
-
-        user.setDeleted(true);
-        userRepository.save(user);
-    }
-
-    @Override
-    @Transactional(readOnly = true)
-    public RagResponse<PaginationResponse<UserSearchDTO>> findAllUsers(Pageable pageable) {
-        Page<UserSearchDTO> users = userRepository.findAll(pageable)
-                .map(userMapper::toUserSearchDto);
-
-        PaginationResponse<UserSearchDTO> paginationResponse = new PaginationResponse<>(
-                users.getContent(),
-                new PaginationResponse.Pagination(
-                        users.getTotalElements(),
-                        pageable.getPageSize(),
-                        users.getNumber() + 1,
-                        users.getTotalPages()
-                )
-        );
-
-        return RagResponse.createSuccessful(paginationResponse);
-    }
-
-    @Override
-    @Transactional(readOnly = true)
-    public RagResponse<UserInfo> getUserInfo(Integer userId) {
-        User user = userRepository.findByIdAndDeletedFalse(userId)
-                .orElseThrow(() -> new NotFoundException(ApiErrorMessage.USER_NOT_FOUND_BY_ID.getMessage(userId)));
-
-        List<LoadedDocumentInfo> loadedFiles = documentRepository
-                .findByUserId(user.getId())
-                .stream()
-                .map(doc -> new LoadedDocumentInfo(doc.getId(), doc.getFilename()))
-                .toList();
-
-        UserInfo userInfo = new UserInfo(user.getId(),
-                user.getUsername(),
-                user.getEmail(),
-                loadedFiles);
-
-        return RagResponse.createSuccessful(userInfo);
-    }
-
-    @Override
-    @Transactional
-    public RagResponse<Integer> deleteUserDocuments(Integer userId) {
-        User user = userRepository.findByIdAndDeletedFalse(userId)
-                .orElseThrow(() -> new NotFoundException(ApiErrorMessage.USER_NOT_FOUND_BY_ID.getMessage(userId)));
-
-        List<LoadedDocument> documents = documentRepository.findByUserId(user.getId());
-
-        if (documents.isEmpty()) {
-            return RagResponse.createSuccessful(0);
-        }
-
-        vectorStoreRepository.deleteByUserId(user.getId().longValue());
-        documentRepository.deleteAll(documents);
-
-        return RagResponse.createSuccessful(documents.size());
-    }
-}
--- a/rag-service/src/main/java/com/balex/rag/service/model/AuthenticationConstants.java
+++ b/rag-service/src/main/java/com/balex/rag/service/model/AuthenticationConstants.java
@@ -1,17 +0,0 @@
-package com.balex.rag.service.model;
-
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public final class AuthenticationConstants {
-
-    public static final String USER_ID = "userId";
-    public static final String USERNAME = "username";
-    public static final String USER_EMAIL = "email";
-    public static final String USER_REGISTRATION_STATUS = "userRegistrationStatus";
-    public static final String LAST_UPDATE = "lastUpdate";
-    public static final String SESSION_ID = "sessionId";
-    public static final String ACCESS_KEY_HEADER_NAME = "key";
-
-}
--- a/rag-service/src/main/java/com/balex/rag/service/model/exception/DataExistException.java
+++ b/rag-service/src/main/java/com/balex/rag/service/model/exception/DataExistException.java
@@ -1,14 +0,0 @@
-package com.balex.rag.service.model.exception;
-
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public class DataExistException extends RuntimeException {
-
-    public DataExistException(String message) {
-        super(message);
-    }
-}
-
-
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`{"root":["./src/app.tsx","./src/main.tsx","./src/components/chat/chatinput.tsx","./src/components/chat/chatmessage.tsx","./src/components/chat/chatwidget.tsx","./src/components/hero/herosection.tsx","./src/components/layout/footer.tsx","./src/components/layout/header.tsx","./src/components/projects/projectcard.tsx","./src/components/projects/projectssection.tsx","./src/hooks/usehrguestauth.ts","./src/services/api.ts","./src/types/index.ts","./vite.config.ts"],"version":"5.7.3"}`