The real issue was not the overall timeout duration, but that DNS resolution and TLS handshake could hang indefinitely. Added specific timeouts for:
- DNS resolution/connection: 10 seconds
- TLS handshake: 10 seconds
- Response headers: 10 seconds
This prevents the connection from hanging on DNS lookup (like with pve-backup.lan) or during TLS negotiation, which was causing the 'context deadline exceeded' errors. (addresses #424)
- Increased default HTTP client timeout from 30s to 60s
- Added CreateHTTPClientWithTimeout function to properly set custom timeouts
- Updated Proxmox and PBS clients to use configured timeout values
- Increased default connection timeout from 45s to 60s in config
This prevents "context deadline exceeded" errors when connecting to slow or overloaded Proxmox/PBS nodes.
- Fix alternating zero I/O metrics by implementing rate caching for stale data from Proxmox
- Hardcode polling interval to 10 seconds (matching Proxmox cluster/resources update cycle)
- Remove polling interval settings from UI (no longer user-configurable)
- Implement efficient VM/container polling using single cluster/resources API call
- Remove 'Remove Password' feature (auth is now mandatory)
- Fix CSRF validation for Basic Auth (exempt from CSRF checks)
- Fix Generate API Token modal and authentication
- Remove redundant 'Active' status from Authentication section
- Remove Connection Timeout setting from frontend (backend-only)
- Clean up frontend console logging (reduce verbosity)
- Remove PBS polling interval setting (fixed at 10s)
- Add frontend rebuild detection to backend-watch script
- Improve first-run setup flow and error handling
