- Introduced a `ProcessingMode` enum to differentiate between basic and premium processing modes.
- Updated `EtlRequest` to include a `processing_mode` field, defaulting to basic.
- Enhanced ETL pipeline services to utilize the selected processing mode for Azure Document Intelligence and LlamaCloud parsing.
- Modified various routes and services to handle processing mode, affecting document upload and indexing tasks.
- Improved error handling and logging to include processing mode details.
- Added tests to validate processing mode functionality and its impact on ETL operations.
Closes#1195.
Adds `surfsense_web/app/dashboard/error.tsx` so unhandled errors in any
dashboard route render inside the dashboard layout (sidebar/nav stay
visible) instead of blowing out to the root-level error page. `reset()`
now retries just the failed segment.
Follows the same PostHog capture pattern as the root error.tsx and adds
a secondary "Go to dashboard home" link for recovery when `reset()`
doesn't help.
