fix: remove unused code & add coontribute doc

Author: qin-ctx

CONTRIBUTING.md

@@ -0,0 +1,89 @@
+# Contributing to MineContext
+
+Thank you for your interest in contributing to MineContext! We welcome contributions from the community.
+
+## Getting Started
+
+### Development Setup
+
+1. **Fork and clone the repository**
+
+   ```bash
+   git clone https://github.com/YOUR_USERNAME/MineContext.git
+   cd MineContext
+   ```
+2. **Set up your environment**
+
+   ```bash
+   python -m venv venv
+   source venv/bin/activate  # On Windows: venv\Scripts\activate
+   pip install -r requirements.txt
+   ```
+3. **Configure and run**
+
+   ```bash
+   # Start the server
+   python -m opencontext.cli start
+   ```
+
+## How to Contribute
+
+### Reporting Issues
+
+Found a bug or have a feature request? [Create an issue](https://github.com/volcengine/MineContext/issues) with:
+
+- Clear description of the problem or feature
+- Steps to reproduce (for bugs)
+- Your environment (OS, Python version, MineContext version)
+
+### Submitting Code
+
+1. **Create a branch**
+
+   ```bash
+   git checkout -b feature/your-feature-name
+   ```
+2. **Make your changes**
+
+   - Follow [PEP 8](https://pep8.org/) style guidelines
+   - Add tests for new features
+   - Update documentation if needed
+3. **Commit with clear messages**
+
+   ```bash
+   git commit -m "feat: add your feature description"
+   # or
+   git commit -m "fix: fix your bug description"
+   ```
+4. **Push and create a Pull Request**
+
+   ```bash
+   git push origin feature/your-feature-name
+   ```
+
+## Code Style
+
+- Follow PEP 8 guidelines
+- Use type hints where appropriate
+- Keep functions focused and well-documented
+- Maximum line length: 100 characters
+
+## Priority Areas
+
+We especially welcome contributions in these areas:
+
+- **P0-P1**: Link upload, file processing (documents, images, audio, video)
+- **P2-P3**: MCP/API integrations (Notion, Obsidian, Figma), meeting recording
+- **P4-P5**: Mobile screenshot monitoring, smart device sync
+
+See the [Context Sources](README.md#-context-source) section for more details.
+
+## Community
+
+- **Issues**: [GitHub Issues](https://github.com/volcengine/MineContext/issues)
+- **WeChat/Lark**: [Join our group](https://bytedance.larkoffice.com/wiki/Hg6VwrxnTiXtWUkgHexcFTqrnpg)
+- **Discord**: [Join here](https://discord.gg/tGj7RQ3nUR)
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the [Apache 2.0 License](LICENSE).

README.md

@@ -247,7 +247,7 @@ opencontext/
    - Multi-modal content processing (text, images)
 5. **Storage Layer** (`storage/`)
 
-   - Multi-backend support (SQLite, ChromaDB, VikingDB)
+   - Multi-backend support (SQLite, ChromaDB)
    - Vector storage for similarity search
    - Unified storage interface
 6. **LLM Integration** (`llm/`)

README_zh.md

@@ -247,7 +247,7 @@ opencontext/
    - 多模态内容处理（文本、图像）
 5. **存储层** (`storage/`)
 
-   - 多后端支持（SQLite、ChromaDB、VikingDB）
+   - 多后端支持（SQLite、ChromaDB）
    - 用于相似性搜索的向量存储
    - 统一的存储接口
 6. **LLM集成** (`llm/`)

opencontext/models/__init__.py

@@ -10,7 +10,6 @@
 from opencontext.models.enums import (
     ContextSource,
     ContentFormat,
-    ExtractedTags,
 )
 from opencontext.models.context import (
     RawContextProperties,
@@ -26,5 +25,4 @@
     "ContextProperties",
     "ContextSource",
     "ContentFormat",
-    "ExtractedTags",
 ]

opencontext/models/enums.py

@@ -74,72 +74,6 @@ class ContentFormat(str, Enum):
     VECTOR = "vector"
 
 
-class ProcessingStage(str, Enum):
-    """Processing stage enumeration"""
-    
-    # Raw data, unprocessed
-    RAW = "raw"
-    
-    # Preprocessing stage, such as text extraction, format conversion, etc.
-    PREPROCESSED = "preprocessed"
-    
-    # Information extraction
-    EXTRACTED = "extracted"
-        
-    # Classification
-    CLASSIFIED = "classified"
-
-    # Summarization
-    SUMMARIZED = "summarized"
-
-    # Embedding vector
-    EMBEDDED = "embedded"
-    
-    # Final processing stage, all processing completed
-    FULLY_PROCESSED = "fully_processed"
-
-class ExtractedTags(str, Enum):
-    """Extracted tags enumeration"""
-    WORK = "work"
-    LIFE = "life"
-    STUDY = "study"
-    FINANCE = "finance"
-    ENTERTAINMENT = "entertainment"
-    UNKNOWN = "unknown"
-    
-class StorageBackendType(str, Enum):
-    """Storage backend type enumeration"""
-    
-    # VikingDB, for vector storage
-    VIKINGDB = "vikingdb"
-    
-    # File system storage
-    FILESYSTEM = "filesystem"
-    
-    # Memory storage (for testing)
-    MEMORY = "memory"
-
-class EntityType(str, Enum):
-    """Entity type enumeration"""
-    ENTITY_NAME = "ENTITY_NAME" # Entity name
-    FILE_NAME = "FILE_NAME" # File name
-    DATE_RANGE = "DATE_RANGE" # Date range
-    KEYWORD = "KEYWORD" # Keyword
-
-class FilterKey(str, Enum):
-    """Query filter key enumeration"""
-    CONTEXT_TYPE = "context_type"
-    SOURCE = "source"
-    CREATE_TIME = "create_time"
-    UPDATE_TIME = "update_time"
-    ENTITYS = "entities"
-
-class QueryModifierKey(str, Enum):
-    """Query modifier key enumeration"""
-    SIMILARITY_THRESHOLD = "similarity_threshold"
-    RECENCY = "recency"
-    IMPORTANCE = "importance"
-
 class MergeType(str, Enum):
     """Merge type enumeration"""
     ASSOCIATIVE = "associative"