refactor: Improve console logging control for Textual devtools

[finxo]

Pull Request

📝 Summary

Refines the console logging configuration logic for the Textual TUI. When devtools mode is enabled, console logging remains active so textual console can receive logs. In all other modes (including debug), console logging is disabled since the TUI hides it anyway, keeping only file-based logging.

🔧 Changes Made

• Changed console logging logic from elif not debug to else block
• Console logging now disabled in all non-devtools modes (including debug mode)
• Updated comments to clarify logging behavior in devtools vs standard modes
• Simplified conditional structure for better readability

🧪 Testing

• Manual testing with titan-dev
• Unit tests added/updated (poetry run pytest)
• All tests passing (make test)

Verified console logging behavior with and without devtools flag.

📊 Logs

• No new log events

✅ Checklist

• Self-review done
• Follows the project's logging rules (no secrets, no content in logs)
• New and existing tests pass
• Documentation updated if needed