Fix critical issues and improve connection handling

[RusseII]

Summary

• Fix spacing issues in GC Status lookup for public chat
• Clear channel subscription status on logout to prevent stale UI state
• Convert all logging to debug level to reduce production noise
• Reduce reconnection message spam (only show every 5 attempts)
• Clarify connection limit messaging to explicitly mention 200 player cap

Changes

Bug Fixes

• Added replaceAll("\\s+", " ").trim() to remove extra spaces from icon placeholders in player name extraction
• Added channelSubscriptionStatus.clear() in closeConnection() to properly reset state on logout
• Removed channel subscription debug display from UI panel

Logging Improvements

• Replaced all log.error, log.warn, and log.info with log.debug
• Reduces log noise in production while maintaining debug capability

User Experience

• Connection retry messages now only show every 5 attempts (reduces spam from ~1/min to ~1/5min)
• Messages now clearly state "Global Chat at connection limit (200 players max)" instead of vague "connection issue"
• Error messages now say "Global Chat full - 200 player limit reached!" to make the capacity issue explicit
• Both messages encourage Patreon support to increase limits

Test Plan

• Test GC Status lookup works correctly in public chat without spacing issues
• Verify UI panel clears channel info after logout
• Confirm reconnection messages appear at appropriate intervals
• Verify connection limit messaging is clear to users

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