Backend: Enhanced matchField function with prefix and contains matching
so NHTSA values like "Sierra" match dropdown options like "Sierra 1500".
Matching hierarchy:
1. Exact match (case-insensitive) -> high confidence
2. Normalized match (remove special chars) -> medium confidence
3. Prefix match (option starts with value) -> medium confidence (NEW)
4. Contains match (option contains value) -> medium confidence (NEW)
Frontend: Fixed VIN decode form population by loading dropdown options
before setting form values, preventing cascade useEffects from clearing
decoded values.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
VIN decode was setting year/make/model/trim values, but the cascading
dropdown useEffects would immediately clear dependent fields because
they detected a value change. Added isVinDecoding ref flag (mirroring
the existing isInitializing pattern for edit mode) to skip cascade
clearing during VIN decode and properly load dropdown options.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add VIN decode endpoint to API section
- Document request/response format with confidence levels
- Add error response examples (400, 403, 502)
- Update architecture diagram with external/ directory
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add NHTSA client for VIN decoding with caching and validation
- Add POST /api/vehicles/decode-vin endpoint with tier gating
- Add dropdown matching service with confidence levels
- Add decode button to VehicleForm with tier check
- Responsive layout: stacks on mobile, inline on desktop
- Only populate empty fields (preserve user input)
Backend:
- NHTSAClient with 5s timeout, VIN validation, vin_cache table
- Tier gating with 'vehicle.vinDecode' feature key (Pro+)
- Tiered matching: high (exact), medium (normalized), none
Frontend:
- Decode button with loading state and error handling
- UpgradeRequiredDialog for free tier users
- Mobile-first responsive layout
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
