Eric Gullickson 90401dc1ba feat: add maintenance receipt extraction pipeline with Gemini + regex (refs #150) ...

- New MaintenanceReceiptExtractor: Gemini-primary extraction with regex
  cross-validation for dates, amounts, and odometer readings
- New maintenance_receipt_validation.py: cross-validation patterns for
  structured field confidence adjustment
- New POST /extract/maintenance-receipt endpoint reusing
  ReceiptExtractionResponse model
- Per-field confidence scores (0.0-1.0) with Gemini base 0.85,
  boosted/reduced by regex agreement

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-02-12 21:14:13 -06:00

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