Refactor project structure and enhance Docker support

- Removed unnecessary `__init__.py` and `Dockerfile` to streamline project organization.
- Updated `.dockerignore` and `.gitignore` to improve exclusion patterns for build artifacts and environment files.
- Enhanced `Makefile` with new commands for managing Docker containers and added help documentation.
- Introduced `pyproject.toml` for better project metadata management and dependency tracking.
- Updated `requirements.txt` to reflect changes in dependencies for metrics and monitoring.
- Refactored various handler files to improve code organization and maintainability.

requirements.txt

@@ -13,10 +13,9 @@ psutil~=6.1.0
 # Scheduling
 apscheduler~=3.10.4
 
-# Testing
-pytest==8.2.2
-pytest-asyncio==1.1.0
-coverage==7.5.4
+# Metrics and monitoring
+prometheus-client==0.19.0
+aiohttp==3.9.1
 
 # Development tools
 pluggy==1.5.0