Knee Cola
f19e1bc023
feat: secure proof-of-payment download routes with shareId validation
Changes:
- Update download links in UI to use shareId instead of locationID
- Add shareId validation to per-bill proof download route
- Add shareId validation to combined proof download route
- Validate TTL before allowing downloads
- Extract locationId from shareId using extractShareId helper
Security:
- Download routes now validate checksum and TTL
- Prevents unauthorized access to proof-of-payment files
- Returns 404 for invalid/expired share links
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>