Add essential project files

- Add MIT License file
- Add requirements.txt for pip compatibility
- Add requirements-dev.txt for development dependencies
- Improve project structure for better package management

Author: FromCSUZhou

LICENSE

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+MIT License
+
+Copyright (c) 2025 FLock.io
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

requirements-dev.txt

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+# Development dependencies
+pytest>=7.0.0
+pytest-asyncio>=0.21.0
+pytest-cov>=4.0.0
+black>=23.0.0
+isort>=5.12.0
+mypy>=1.0.0
+flake8>=6.0.0
+pre-commit>=3.0.0

requirements.txt

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+# Core dependencies
+mcp>=1.0.0
+httpx>=0.24.0
+pydantic>=2.0.0
+
+# Optional development dependencies
+# Install with: pip install -r requirements.txt -r requirements-dev.txt