fix: enhance websocket stability and error handling

[haseeb5555]

This PR includes several reliability improvements:

• Add timeout and retry mechanism for stargazers action
• Fix memory leak in websocket implementation
• Fix table of content state issues
• Enhance Redis pub/sub with proper error handling and timeouts

Testing:

• Verified websocket connections properly close
• Confirmed Redis operations now timeout after 5s
• Tested table of content state updates