More socket-io client logging improvements

[cte]

Important

Improved logging in SocketTransport.ts with method-specific references and context, renamed a variable for clarity, and simplified the onReconnect callback signature.

• Logging Improvements:
  • Updated log messages in SocketTransport.ts to include method references, e.g., [SocketTransport#connect].
  • Added more context to log messages, such as connection attempts and delays.
• Variable Renaming:
  • Renamed hasConnectedOnce to isPreviouslyConnected in SocketTransport.ts for clarity.
• Callback Signature Change:
  • Simplified onReconnect callback in SocketTransportOptions by removing attemptNumber parameter.

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[roomote]

Thank you for your contribution! I've reviewed the changes and found that the logging improvements are excellent. The method-specific prefixes make debugging much easier, and the variable rename to isPreviouslyConnected is more descriptive.

Suggestions for Future Improvements

While this PR has already been merged, here are some observations for consideration in future updates:

1. Breaking API change: The removal of the attemptNumber parameter from the onReconnect callback (line 10) is a breaking change that could affect consumers who depend on knowing the reconnection attempt number.

2. Debug visibility: The removed "Waiting Xms before retry..." log message previously provided useful visibility into retry behavior during debugging. Consider adding it back with a debug flag.

3. Connection state timing: Setting connectionState = CONNECTED before calling the callbacks could lead to race conditions if the callbacks fail. Consider setting it after successful callback execution.

4. Logging consistency: Line 145 still uses [SocketTransport] instead of [SocketTransport#_connect] for consistency with other log messages in that method.

Overall, great improvements to the logging system!