fix: using python http server

[thegrannychaseroperation]

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[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[greptile-apps]

PR Summary

Replaced Flask web framework with Python's built-in http.server module for handling RPC requests, simplifying dependencies while maintaining core functionality.

• Removed Flask dependency from requirements.txt, reducing external dependencies
• Implemented custom RequestHandler class in python_rpc/main.py with manual HTTP response handling
• Added password validation through validate_rpc_password() method for all endpoints
• Maintained consistent JSON response format for download status, seeding, and process list endpoints
• Added error handling for torrent and HTTP download initialization in startup code

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[greptile-apps]

style: aria2p dependency may no longer be needed since HTTP downloads are now handled by the built-in http.server module

[greptile-apps]

logic: early return without response body could cause client issues - should send 401 response like other endpoints