Major Security Improvements:

- Enhanced user fingerprinting with WebGL, Canvas, and Audio fingerprinting
- Hardware binding to prevent F5/Ctrl+F5 abuse
- Persistent storage across browser sessions (localStorage + sessionStorage)
- Global demo session counter with 10 session limit per device
- Multi-tab protection (max 2 tabs simultaneously)
- Anti-reset protection with hardware mismatch detection

Demo Session Protection:
- Advanced fingerprint generation with CPU benchmarking
- Enhanced validation with cryptographic verification
- Automatic cleanup and session completion tracking
- Cooldown periods between sessions (1min + 15min completion)
- Weekly partial reset of global counters

Fixes:
- Fixed SessionTimer console spam after connection disconnect
- Added missing registerEnhancedDemoSessionUsage method
- Corrected method calls from generateUserFingerprint to generateAdvancedUserFingerprint
- Implemented proper event handling for connection state changes

WebRTC Improvements:
- Added peer-disconnect, new-connection, and connection-cleaned events
- Enhanced connection cleanup with proper UI notifications
- Fixed SessionTimer state management during disconnections
- Prevented infinite re-rendering and console logging

Performance Optimizations:
- Auto-save persistent data every 30 seconds
- Periodic cleanup of old session data (every 6 hours)
- Memory management for used preimages (10k limit)
- Tab heartbeat system for multi-tab detection

Testing:
- Demo sessions now properly enforce limits
- P2P anonymity maintained (no server validation)
- Compatible with incognito mode restrictions
- Resistant to common abuse techniques

index.html

@@ -3244,7 +3244,6 @@
                 }
 
                 try {
-                    console.log('📤 Attempting to send message:', messageInput.substring(0, 100));
                     
                     // Add the message to local messages immediately (sent message)
                     const sentMessage = {