PI Test

Environment variables — all 12, which are required, which are optional with defaults, how hot-reload works The 16-step pipeline — every step documented from actual engine.ts code, including the Step 14b avatar sync that was added to fix images CSV source formats — Yelp vs FYI, exact column → field mappings for both Threshold gate — all 14 check IDs, the not_pi_business keyword logic in full detail Quality gate — the 8 regex patterns, the hard-coded 20-char bio minimum 3-signal dedup cascade — exactly how SQLite-first → Supabase-fallback works per signal Profile enrichment — fill-in-blanks for scalars, union-merge for arrays, multi-phone/office append logic