Add comprehensive network error handling and recovery mechanisms

[manideepk90]

Build robust error handling for various network failure scenarios:

Error Handling Features:

1. Error Classification
   - Network vs server errors
   - Temporary vs permanent failures
   - User-recoverable vs system errors
   - Security vs connectivity issues
2. Recovery Strategies
   - Automatic retry with backoff
   - Fallback endpoint usage
   - Cached response fallback
   - Manual user intervention
3. User Communication
   - Context-aware error messages
   - Recovery action suggestions
   - Progress indication during recovery
   - Escalation to human support

[Devankguptaa]

@manideepk90 can you please assign this issue to me?