Khata

Bank-SMS expenses → your own Google Sheet, per user. Backend is live.

• POST /api/auth/register · POST /api/auth/login
• POST /api/ingest/sms — raw SMS in, categorized transaction out
• GET/POST /api/tx · PATCH/DELETE /api/tx/:id
• POST /api/ask — natural-language Q&A (Groq)
• GET /api/admin/overview — cross-user rollup (admin)

The dashboard UI lands in milestone M4.