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+# System Overview – CodeBot
+
+## תרשים ארכיטקטורה כללי
+
+```mermaid
+graph TB
+    subgraph Clients["👤 לקוחות"]
+        TG["Telegram Client"]
+        Browser["Web Browser"]
+    end
+
+    subgraph TelegramBot["🤖 Telegram Bot Layer"]
+        Main["main.py<br/>Entry Point"]
+        Handlers["handlers/<br/>Conversation Flows"]
+        ConvHandlers["conversation_handlers.py<br/>Multi-step Interactions"]
+        BotHandlers["bot_handlers.py<br/>Command Handlers"]
+    end
+
+    subgraph WebApp["🌐 Flask WebApp"]
+        FlaskApp["webapp/app.py<br/>Flask Application"]
+
+        subgraph Routes["Routes"]
+            AuthRoutes["auth_routes.py"]
+            DashRoutes["dashboard_routes.py"]
+            FilesRoutes["files_routes.py"]
+            RepoRoutes["repo_browser.py"]
+            SettingsRoutes["settings_routes.py"]
+        end
+
+        subgraph APIs["REST APIs"]
+            CollAPI["collections_api.py"]
+            BookAPI["bookmarks_api.py"]
+            BackupAPI["backup_api.py"]
+            CodeToolsAPI["code_tools_api.py"]
+            ThemesAPI["themes_api.py"]
+            SnippetAPI["snippet_library_api.py"]
+            CommunityAPI["community_library_api.py"]
+        end
+
+        Templates["Jinja2 Templates"]
+    end
+
+    subgraph Services["⚙️ Services Layer"]
+        subgraph CoreServices["שירותי ליבה"]
+            AIExplain["ai_explain_service"]
+            CodeFormat["code_formatter_service"]
+            CodeExec["code_execution_service"]
+            Embedding["embedding_service"]
+        end
+
+        subgraph IntegrationServices["שירותי אינטגרציה"]
+            GitHubSvc["github_service"]
+            GDriveSvc["google_drive_service"]
+            RepoSync["repo_sync_service"]
+            GitMirror["git_mirror_service"]
+        end
+
+        subgraph SearchServices["חיפוש וניתוח"]
+            RepoSearch["repo_search_service"]
+            CodeIndexer["code_indexer"]
+            QueryProfiler["query_profiler_service"]
+        end
+
+        subgraph BackupServices["גיבוי ויצוא"]
+            BackupSvc["backup_service"]
+            PersonalBackup["personal_backup_service"]
+        end
+    end
+
+    subgraph Domain["🏗️ Domain Layer – src/"]
+        Entities["domain/entities/<br/>Snippet, CodeSnippet"]
+        DomainSvc["domain/services/<br/>CodeNormalizer, LanguageDetector"]
+        Interfaces["domain/interfaces/<br/>Repository Contracts"]
+        AppSvc["application/services/<br/>SnippetService"]
+        DTOs["application/dto/<br/>Data Transfer Objects"]
+    end
+
+    subgraph DataLayer["💾 Database Layer"]
+        Repo["database/repository.py<br/>MongoDB Repository"]
+        Models["database/models.py<br/>CodeSnippet, LargeFile, Snippet"]
+        Manager["database/manager.py<br/>DatabaseManager (Singleton)"]
+        CollMgr["collections_manager.py"]
+        BookMgr["bookmarks_manager.py"]
+    end
+
+    subgraph External["☁️ שירותים חיצוניים"]
+        MongoDB[("MongoDB<br/>Primary DB")]
+        Redis[("Redis<br/>Cache")]
+        GitHubAPI["GitHub API"]
+        GDriveAPI["Google Drive API"]
+        PastebinAPI["Pastebin API"]
+        TelegramAPI["Telegram Bot API"]
+    end
+
+    subgraph Observability["📊 Observability Stack"]
+        Sentry["Sentry<br/>Error Tracking"]
+        Prometheus["Prometheus<br/>Metrics"]
+        Grafana["Grafana<br/>Dashboards"]
+        Jaeger["Jaeger<br/>Tracing"]
+        OTel["OpenTelemetry"]
+        AlertMgr["Alertmanager"]
+    end
+
+    subgraph Infra["🐳 Infrastructure"]
+        Docker["Docker<br/>Multi-stage Build"]
+        Nginx["Nginx<br/>Reverse Proxy"]
+        Gunicorn["Gunicorn + Gevent<br/>WSGI Server"]
+        CICD[".github/workflows/<br/>CI/CD Pipelines"]
+    end
+
+    %% Client connections
+    TG -->|Messages & Commands| TelegramAPI
+    TelegramAPI -->|Webhooks / Polling| Main
+    Browser -->|HTTPS| Nginx
+    Nginx -->|Proxy| Gunicorn
+    Gunicorn --> FlaskApp
+
+    %% Bot internal flow
+    Main --> Handlers
+    Main --> ConvHandlers
+    Main --> BotHandlers
+    Handlers --> Services
+    ConvHandlers --> Services
+    BotHandlers --> Services
+
+    %% WebApp internal flow
+    FlaskApp --> Routes
+    FlaskApp --> APIs
+    FlaskApp --> Templates
+    Routes --> Services
+    APIs --> Services
+
+    %% Services to Domain
+    CoreServices --> Domain
+    SearchServices --> Domain
+
+    %% Domain to Data
+    AppSvc --> Interfaces
+    Interfaces -.->|implements| Repo
+    Domain --> DataLayer
+
+    %% Services to Data
+    Services --> DataLayer
+
+    %% Data to External DB
+    Repo --> MongoDB
+    Manager --> MongoDB
+    Manager --> Redis
+
+    %% Services to External APIs
+    GitHubSvc --> GitHubAPI
+    GDriveSvc --> GDriveAPI
+    IntegrationServices --> PastebinAPI
+
+    %% Observability
+    Main -.-> OTel
+    FlaskApp -.-> OTel
+    Services -.-> OTel
+    OTel -.-> Prometheus
+    OTel -.-> Jaeger
+    Prometheus -.-> Grafana
+    Prometheus -.-> AlertMgr
+    Main -.-> Sentry
+    FlaskApp -.-> Sentry
+
+    %% Styling
+    classDef client fill:#e1f5fe,stroke:#0288d1,stroke-width:2px
+    classDef bot fill:#fff3e0,stroke:#f57c00,stroke-width:2px
+    classDef web fill:#e8f5e9,stroke:#388e3c,stroke-width:2px
+    classDef service fill:#f3e5f5,stroke:#7b1fa2,stroke-width:2px
+    classDef domain fill:#fce4ec,stroke:#c62828,stroke-width:2px
+    classDef data fill:#fff8e1,stroke:#f9a825,stroke-width:2px
+    classDef external fill:#e0f2f1,stroke:#00695c,stroke-width:2px
+    classDef observe fill:#f1f8e9,stroke:#558b2f,stroke-width:2px
+    classDef infra fill:#eceff1,stroke:#455a64,stroke-width:2px
+
+    class TG,Browser client
+    class Main,Handlers,ConvHandlers,BotHandlers bot
+    class FlaskApp,AuthRoutes,DashRoutes,FilesRoutes,RepoRoutes,SettingsRoutes,CollAPI,BookAPI,BackupAPI,CodeToolsAPI,ThemesAPI,SnippetAPI,CommunityAPI,Templates web
+    class AIExplain,CodeFormat,CodeExec,Embedding,GitHubSvc,GDriveSvc,RepoSync,GitMirror,RepoSearch,CodeIndexer,QueryProfiler,BackupSvc,PersonalBackup service
+    class Entities,DomainSvc,Interfaces,AppSvc,DTOs domain
+    class Repo,Models,Manager,CollMgr,BookMgr data
+    class MongoDB,Redis,GitHubAPI,GDriveAPI,PastebinAPI,TelegramAPI external
+    class Sentry,Prometheus,Grafana,Jaeger,OTel,AlertMgr observe
+    class Docker,Nginx,Gunicorn,CICD infra
+```
+
+---
+
+## זרימת נתונים עיקרית
+
+```mermaid
+sequenceDiagram
+    participant U as 👤 משתמש
+    participant T as 🤖 Telegram Bot
+    participant W as 🌐 WebApp
+    participant S as ⚙️ Services
+    participant D as 🏗️ Domain
+    participant DB as 💾 MongoDB
+    participant EXT as ☁️ External APIs
+
+    Note over U,EXT: זרימת שמירת קוד (Telegram)
+    U->>T: שליחת קוד / קובץ
+    T->>S: save_flow handler
+    S->>D: Language Detection + Normalization
+    D->>S: Processed Code
+    S->>DB: repository.save_code_snippet()
+    DB-->>S: Saved Document
+    S-->>T: Success Response
+    T-->>U: ✅ הקובץ נשמר
+
+    Note over U,EXT: זרימת צפייה ב-WebApp
+    U->>W: GET /dashboard
+    W->>S: files_routes → get_files()
+    S->>DB: find() with projection
+    DB-->>S: File List (no heavy fields)
+    S-->>W: File Metadata
+    W-->>U: Dashboard HTML
+
+    Note over U,EXT: גיבוי ל-GitHub
+    U->>T: /backup github
+    T->>S: github_service.create_gist()
+    S->>DB: Fetch file content
+    DB-->>S: Full Code
+    S->>EXT: GitHub API → Create Gist
+    EXT-->>S: Gist URL
+    S-->>T: Backup Complete
+    T-->>U: 🔗 קישור ל-Gist
+```
+
+---
+
+## מבנה Docker Compose
+
+```mermaid
+graph LR
+    subgraph Docker["Docker Compose Stack"]
+        subgraph Core["Core Services"]
+            Bot["code-keeper-bot<br/>:8000"]
+            Mongo["mongodb<br/>:27017"]
+            RedisC["redis<br/>:6379"]
+        end
+
+        subgraph Web["Web Layer"]
+            NginxC["nginx<br/>:80/:443"]
+            MongoExpress["mongo-express<br/>:8081"]
+        end
+
+        subgraph Monitoring["Monitoring Stack"]
+            Prom["prometheus<br/>:9090"]
+            Graf["grafana<br/>:3000"]
+            Alert["alertmanager<br/>:9093"]
+            Jaeg["jaeger<br/>:16686"]
+        end
+    end
+
+    NginxC --> Bot
+    Bot --> Mongo
+    Bot --> RedisC
+    MongoExpress --> Mongo
+    Prom --> Bot
+    Prom --> Alert
+    Graf --> Prom
+    Jaeg --> Bot
+
+    classDef core fill:#e3f2fd,stroke:#1565c0
+    classDef web fill:#e8f5e9,stroke:#2e7d32
+    classDef mon fill:#fff3e0,stroke:#ef6c00
+
+    class Bot,Mongo,RedisC core
+    class NginxC,MongoExpress web
+    class Prom,Graf,Alert,Jaeg mon
+```
+
+---
+
+## טכנולוגיות עיקריות
+
+| שכבה | טכנולוגיה | תפקיד |
+|------|-----------|--------|
+| **Bot** | python-telegram-bot 22.5 | ממשק Telegram |
+| **Web** | Flask 3.1.2 + Gunicorn + Gevent | שרת Web |
+| **Templates** | Jinja2 | תבניות HTML |
+| **Database** | MongoDB (PyMongo 4.15 / Motor 3.7) | אחסון נתונים |
+| **Cache** | Redis 7.0 | שכבת מטמון |
+| **Integrations** | PyGithub, Google Drive API, aiohttp | שירותים חיצוניים |
+| **Observability** | Sentry, Prometheus, OpenTelemetry, Jaeger | ניטור וזיהוי תקלות |
+| **Code Tools** | Pygments, Black, langdetect | עיבוד קוד |
+| **Infrastructure** | Docker, Nginx, GitHub Actions | תשתית ו-CI/CD |