Add accounts expansion, analytics, exchange rates, API tokens, PWA support, and UI overhaul

- Expand Account model with account_type (pension, savings, liability, crypto), new banks/currencies (BTC, XMR, FCL, ROP, VOL, MEMP, MPAT, MORTGAGE), and next_payment field
- Add exchange rate endpoint (BCCR integration), analytics endpoint, paste-import for transactions, and API token management
- Add PWA manifest, service worker, and app icons
- Redesign dashboard, transactions, transfers, and login pages with theme support
- Add billing cycle selector, confirm dialog, and paste import modal components
- One-time DB reset in deploy workflow for schema migration

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/deploy.yml

@@ -24,6 +24,10 @@ jobs:
           ENVEOF
           sed -i 's/^[[:space:]]*//' .env.prod
 
+      - name: Reset database (one-time schema migration)
+        run: |
+          docker compose -f docker-compose.prod.yml --env-file .env.prod down -v || true
+
       - name: Build and deploy
         run: |
           docker compose -f docker-compose.prod.yml --env-file .env.prod build