0.3.8

Fix/ai analysis measurement loading (#34)

* Add debug logging for AI Analysis measurement loading issue

- Added comprehensive debug logging to identify why measurements visible
  in schema explorer don't load in AI Analysis panel
- Logs show schema state, measurement availability, and field loading results
- Helps diagnose field loading failures for specific measurements

* Fix AI Analysis panel measurement loading with centralized schema access

- Replace AI Analysis custom field loading logic with centralized Schema methods
- Add getFieldsForMeasurement() and getTagsForMeasurement() to Schema module
- Eliminate race conditions between schema explorer and AI Analysis panel
- Ensure consistent field availability across all app components
- Remove duplicate field loading retry logic in Analytics module

Fixes #25