lockbitchat 31485989f7 feat(security): comprehensive connection security overhaul with mutex framework ...

Implemented robust security framework with custom withMutex system:

**Race condition protection:**
- Custom _withMutex('connectionOperation') implementation with 15s timeout
- Atomic key generation through _generateEncryptionKeys()
- Serialized connection operations to prevent conflicts

**Multi-stage validation pipeline:**
- Step-by-step validation (keys, fingerprints, SDP)
- Automatic rollback via _cleanupFailedOfferCreation() on failures
- Error phase detection for precise diagnostics

**Enhanced MITM protection:**
- Unique encryption key fingerprints
- Session ID anti-hijacking protection
- Mutual authentication challenge system
- Package integrity validation

**Advanced logging & monitoring:**
- Secure logging without sensitive data leaks
- Operation tracking via unique operationId
- Comprehensive error diagnostics and phase tracking
- Deadlock detection with emergency recovery

Breaking changes: Connection establishment now requires mutex coordination

2025-08-21 04:07:16 -04:00

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