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CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [2.0.1] - 2025-04-08
+
+### Fixed
+- `JsonDumpsEncoder` now handles `NaTType` (pandas NaT) without throwing TypeError
+- CORS `Access-Control-Allow-Origin` now defaults to `"*"` instead of echoing the request Origin header (security fix)
+- `RbacUser.can()` correctly handles empty permission list
+- Fixed race condition in `aio_pool.py` when task queue is full under high concurrency
+
+### Changed
+- Refactored `config.py` — `get_config()` now consistently returns `None` instead of raising on missing optional keys (use `default` parameter for fallback)
+- Upgraded minimum Python version from 3.9 to 3.11
+- `pyproject.toml` dependencies cleaned up — core dependencies slimmed down; pandas/numpy/matplotlib/opencv moved to `[project.optional-dependencies]`
+
+### Removed
+- Deprecated `web/legacy_session.py` — use JWT-based `@auth_token` decorator instead
+
+## [2.0.0] - 2025-03-15
+
+### Added
+- **Swagger UI auto-generation** (`ApplicationSwagger`) — fully inferred from handler route patterns and decorators
+- **Redis StreamActor** — consumer-group-based message processing with automatic zombie task recovery
+- **ParamAwareUIModule** — async data pre-loading for Tornado UIModules
+- **RBAC with dynamic rules** — rules are serialized Python classes stored in DB, supporting time-based, IP-based, and custom rule chains
+- **Snowflake ID generator** (`snow_id.py`) — thread-safe, no external dependency, 10K+ IDs/sec
+- **Auto-loading handlers** — `Application.load_handlers()` discovers all handlers in a package via `route_pattern` attribute
+- **BaseX encoder/decoder** (`encoder.py`) — auto-detect Base16/32/64/85 + zlib decompression
+- **Async DB engine** — SQLAlchemy async session factory with `aiomysql` / `aiosqlite` support
+- **Task service with daemonization** — `TaskService` with PID file, start/stop/status commands, and graceful shutdown
+- **5 complete examples** under `examples/` — HelloWorld, background tasks, Redis streams, scheduled services, model generation
+- **pytest test suite** — unit tests (mocked) + integration tests for DB, Redis, RBAC
+
+### Changed
+- Complete project restructuring: introduced `web/`, `core/`, `db/`, `rbac/`, `util/`, `service/` package layout
+- `Application` now inherits from `tornado.web.Application` — backward-incompatible refactor from v1.x
+- `RequestHandler.response_ok()` and `response_error()` now use `JsonDumpsEncoder` by default
+- Logging system rewritten — supports rotating file handlers, per-module loggers, console output
+
+### Removed
+- All v1.x code — this is a ground-up rewrite
+
+## [1.0.0] - 2024-01-01
+
+### Added
+- Initial release with basic Tornado wrapper
+- Basic JWT auth and password hashing
+- Simple `config.json` loader
+- Minimal utility functions
+
+> ⚠️ **Note:** v1.0.0 is deprecated and no longer maintained. Please upgrade to v2.0.0+.

CONTRIBUTING.md

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+# Contribution Guidelines
+
+Thank you for considering contributing to this project! Your involvement helps make this project better for everyone.
+
+## How to Contribute
+
+1. **Fork the repository**
+2. **Create a new feature branch**
+   ```bash
+   git checkout -b feature/your-feature-name
+   ```
+3. **Make your changes**  
+   Write clean, well-documented code. Follow the project’s coding standards.
+4. **Add tests**  
+   All new features or bug fixes must include appropriate unit or integration tests.
+5. **Commit your changes**  
+   Use descriptive commit messages following [Conventional Commits](https://www.conventionalcommits.org/).
+6. **Push to your fork**
+   ```bash
+   git push origin feature/your-feature-name
+   ```
+7. **Open a Pull Request**  
+   Clearly describe what you changed, why, and how it affects the project.
+
+## Code Style & Standards
+
+- Follow the project’s linter rules (e.g., PEP8 for Python, ESLint for JavaScript)
+- Keep functions small and focused
+- Document public APIs with docstrings or comments
+- Never commit secrets or environment files
+
+## Reporting Issues
+
+If you find a bug or have a feature request, please open an [Issue](https://github.com/your-repo/issues) with:
+- A clear title
+- Steps to reproduce (for bugs)
+- Expected vs actual behavior
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the MIT License.

environment.yml

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+# environment.yml
+name: paste-env
+channels:
+  - conda-forge
+  - defaults
+
+dependencies:
+  - python=3.11
+  - aiohttp>=3.13.0
+  - aiomysql>=0.2.0
+  - aioquic>=1.2.0
+  - aiosqlite>0.21.0
+  - aiofiles>=23.0.0
+  - cryptography==46.0.3
+  - matplotlib>=3.10.1
+  - matplotlib-inline>=0.1.7
+  - numpy>=1.24.0
+  - openpyxl>=3.1.5
+  - pandas>=2.0.0
+  - pillow>=10.0.0
+  - psutil>=5.9.0
+  - PyJWT>=1.7.1
+  - PyMySQL>=1.1.0
+  - pyOpenSSL>=24.3.0
+  - pytest>=8.0.0
+  - pytest-asyncio>=0.23.0
+  - pytest-cov>=4.0.0
+  - PyYAML>=6.0.2
+  - requests>=2.32.5
+  - selenium>=4.38.0
+  - scipy>=1.14.0
+  - sqlalchemy==2.0.49
+  - svgwrite>=1.4.2
+  - tabulate>=0.9.0
+  - tinycss2>=1.4.0
+  - tinyhtml5>=2.0.0
+  - tornado>=6.4
+  - weasyprint>=64.1
+  - WTForms>=3.2.1
+  - pip
+  - pip:
+      - javaobj-py3>=0.4.4
+      - jieba>=0.42.1
+      - jpush>=3.3.9
+      - redis>=5.2.1
+      - opencv-python>=4.11.0.86
+      - pypinyin>=0.55.0
+      - seaborn>=0.13.2
+      - tornado-swagger>=1.4.5
+      - tornado-wtforms>=0.0.1