data-flow: audit offline queue utility
- Completed Action 2.5.1.3: Audited offlineQueue utility
- Created OFFLINE_QUEUE_AUDIT.md with complete analysis
- Verified core functionality: queue management, priority system, persistence, retry logic
- Verified integration: Error interceptor queues network errors (line 999-1007)
- Verified UI integration: OfflineIndicator displays queue size
- Documented queue configuration: 100 request limit, 3 retries, 24h expiry
- Identified potential issues: FormData serialization, token refresh on replay
- Provided recommendations for testing and improvements
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