- Update lib_sql_search.py to include comprehensive 'vision_fields' mapping for most core objects
- Ensure Vision Mapping only triggers for non-integer values to support backend filters
- Add clean ID names (e.g., 'event_id', 'account_id') to searchable_fields whitelists in Events, Badges, and Journal object definitions
- Resolve Concatenation typo in vision_fields list
- Improve searchability for Journal Entries by adding 'default_qry_str'
- Refactor SQL CRUD to use engine.connect() context managers for thread safety
- Optimize connection pooling in lib_sql_core
- Clean up app/routers/api.py to fix duplicate definitions and OpenAPI KeyError
- Add 'default_qry_str' to searchable_fields for Event, Session, Presentation, Presenter, Badge, and Journal
- Add 'event_location_name' to searchable_fields for Event Session
- Verified 20/20 E2E success via repro_intermittent_errors.py
- Refactor SQL helpers in lib_sql_search to return empty tuples instead of False
- Add Pydantic pre-validators to Event_Base to coerce time objects to strings
- Improves API stability for Event searches and filtered lists
