docs(architecture): restructure and enhance data management documentation

- Removed outdated sections on database architecture and data access patterns for clarity.
- Introduced a new table format for data management systems, detailing use cases and APIs.
- Updated references to the database schema and migration processes for better guidance.
- Consolidated key architectural components to streamline the documentation structure.

CLAUDE.md

@@ -48,34 +48,17 @@ When creating a Pull Request, you MUST:
 
 ### Key Architectural Components
 
-
-#### Main Process Services (`src/main/services/`)
-
-- **MCPService**: Model Context Protocol server management
-- **KnowledgeService**: Document processing and knowledge base management
-- **FileStorage/S3Storage/WebDav**: Multiple storage backends
-- **WindowService**: Multi-window management (main, mini, selection windows)
-- **ProxyManager**: Network proxy handling
-- **SearchService**: Full-text search capabilities
-
-#### AI Core (`src/renderer/src/aiCore/`)
-
-- **Middleware System**: Composable pipeline for AI request processing
-- **Client Factory**: Supports multiple AI providers (OpenAI, Anthropic, Gemini, etc.)
-- **Stream Processing**: Real-time response handling
-
 #### Data Management
 
-- **Cache System**: Three-layer caching (memory/shared/persist) with React hooks integration
-- **Preferences**: Type-safe configuration management with multi-window synchronization
-- **User Data**: SQLite-based storage with Drizzle ORM for business data
+**MUST READ**: [docs/en/references/data/README.md](docs/en/references/data/README.md) for system selection, architecture, and patterns.
 
-#### Knowledge Management
+| System | Use Case | APIs |
+|--------|----------|------|
+| Cache | Temp data (can lose) | `useCache`, `useSharedCache`, `usePersistCache` |
+| Preference | User settings | `usePreference` |
+| DataApi | Business data (**critical**) | `useQuery`, `useMutation` |
 
-- **Embeddings**: Vector search with multiple providers (OpenAI, Voyage, etc.)
-- **OCR**: Document text extraction (system OCR, Doc2x, Mineru)
-- **Preprocessing**: Document preparation pipeline
-- **Loaders**: Support for various file formats (PDF, DOCX, EPUB, etc.)
+Database: SQLite + Drizzle ORM, schemas in `src/main/data/db/schemas/`, migrations via `yarn db:migrations:generate`
 
 ### Build System
 
@@ -106,50 +89,6 @@ The project is in the process of migrating from antd & styled-components to Tail
 
 UI Library: `@packages/ui`
 
-### Database Architecture
-
-- **Database**: SQLite (`cherrystudio.sqlite`) + libsql driver
-- **ORM**: Drizzle ORM with comprehensive migration system
-- **Schemas**: Located in `src/main/data/db/schemas/` directory
-
-#### Database Standards
-
-- **Table Naming**: Use singular form with snake_case (e.g., `topic`, `message`, `app_state`)
-- **Schema Exports**: Export using `xxxTable` pattern (e.g., `topicTable`, `appStateTable`)
-- **Field Definition**: Drizzle auto-infers field names, no need to add default field names
-- **JSON Fields**: For JSON support, add `{ mode: 'json' }`, refer to `preference.ts` table definition
-- **JSON Serialization**: For JSON fields, no need to manually serialize/deserialize when reading/writing to database, Drizzle handles this automatically
-- **Timestamps**: Use existing `crudTimestamps` utility
-- **Migrations**: Generate via `yarn run db:migrations:generate`
-
-## Data Access Patterns
-
-The application uses three distinct data management systems. Choose the appropriate system based on data characteristics:
-
-### Cache System
-- **Purpose**: Temporary data that can be regenerated
-- **Lifecycle**: Component-level (memory), window-level (shared), or persistent (survives restart)
-- **Use Cases**: API response caching, computed results, temporary UI state
-- **APIs**: `useCache`, `useSharedCache`, `usePersistCache` hooks, or `cacheService`
-
-### Preference System
-- **Purpose**: User configuration and application settings
-- **Lifecycle**: Permanent until user changes
-- **Use Cases**: Theme, language, editor settings, user preferences
-- **APIs**: `usePreference`, `usePreferences` hooks, or `preferenceService`
-
-### User Data API
-- **Purpose**: Core business data (conversations, files, notes, etc.)
-- **Lifecycle**: Permanent business records
-- **Use Cases**: Topics, messages, files, knowledge base, user-generated content
-- **APIs**: `useDataApi` hook or `dataApiService` for direct calls
-
-### Selection Guidelines
-
-- **Use Cache** for data that can be lost without impact (computed values, API responses)
-- **Use Preferences** for user settings that affect app behavior (UI configuration, feature flags)
-- **Use User Data API** for irreplaceable business data (conversations, documents, user content)
-
 ## Logging Standards
 
 ### Usage