Building an AI loan document intelligence platform — shipped fraud detection, hybrid search, and 3-tier email fallback this week[P]

What shipped this week: Real fraud detection (8 heuristic rules) Replaced a no-op stub with actual signal detection: FR-001: Unredacted SSN in document body FR-002: Duplicate content hash (same doc resubmitted under a new name) FR-003: Implausibly round income figures ($50,000.00, $80,000.00) FR-004: Future-dated years in document text FR-005: Filename patterns sugges