feat(api): MCP, OpenAPI & Dynamic Introspection

New Features:
- API endpoints now support comprehensive input validation with detailed error responses via Pydantic models.
- OpenAPI specification endpoint (/openapi.json) and interactive Swagger UI documentation (/docs) now available for API discovery.
- Enhanced MCP session lifecycle management with create, retrieve, and delete operations.
- Network diagnostic tools: traceroute, nslookup, NMAP scanning, and network topology viewing exposed via API.
- Device search, filtering by status (including 'offline'), and bulk operations (copy, delete, update).
- Wake-on-LAN functionality for remote device management.
- Added dynamic tool disablement and status reporting.

Bug Fixes:
- Fixed get_tools_status in registry to correctly return boolean values instead of None for enabled tools.
- Improved error handling for invalid API inputs with standardized validation responses.
- Fixed OPTIONS request handling for cross-origin requests.

Refactoring:
- Significant refactoring of api_server_start.py to use decorator-based validation (@validate_request).

.devcontainer/devcontainer.json

@@ -63,7 +63,6 @@
         "bmewburn.vscode-intelephense-client",
         "xdebug.php-debug",
         "ms-python.vscode-pylance",
-        "pamaron.pytest-runner",
         "coderabbit.coderabbit-vscode",
         "ms-python.black-formatter",
         "jeff-hykin.better-dockerfile-syntax",