PocketBase returns 0 for unset number fields, which broke the original
null-coalescing check in effectiveValidityDays, leading to PDFs showing
"Valid until: today" for all new quotes created via email ingest.
Changes include:
- Update effectiveValidityDays to treat 0, negatives, null/undefined as falling back to 30-day default
- Add test cases for 0 and negative validity_days inputs
- Explicitly set validity_days to QUOTE_VALID_DAYS when creating new quotes
- Add one-time idempotent migration script to backfill legacy invalid validity values
- Refactor item intel popover patch logic to use PocketBase SDK for authenticated requests
- Add n8n workflow for AI-powered item insight matching
397df8e2b2