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>

backend/app/seed.py

@@ -1,7 +1,7 @@
 from sqlmodel import Session, select
 
 from app.db import engine
-from app.models.models import Account, Bank, Category, Currency
+from app.models.models import Account, AccountType, Bank, Category, Currency
 
 DEFAULT_CATEGORIES = [
     ("Groceries", "shopping-cart", "automercado,auto mercado,fresh market,macrobiotica,pricesmart,price smart,grassfedcr,pequeno mundo"),
@@ -23,10 +23,25 @@ DEFAULT_CATEGORIES = [
 ]
 
 DEFAULT_ACCOUNTS = [
-    (Bank.BAC, Currency.CRC, "BAC Colones", 0.0),
-    (Bank.BAC, Currency.USD, "BAC Dólares", 0.0),
-    (Bank.BCR, Currency.CRC, "BCR Colones", 0.0),
-    (Bank.DAVIVIENDA, Currency.CRC, "Davivienda Colones", 0.0),
+    # Bank accounts
+    (Bank.BAC, Currency.CRC, "BAC", AccountType.BANK),
+    (Bank.BAC, Currency.USD, "BAC", AccountType.BANK),
+    (Bank.BCR, Currency.CRC, "BCR", AccountType.BANK),
+    (Bank.BCR, Currency.USD, "BCR", AccountType.BANK),
+    (Bank.DAVIVIENDA, Currency.CRC, "DAV", AccountType.BANK),
+    (Bank.DAVIVIENDA, Currency.USD, "DAV", AccountType.BANK),
+    # Pensions (CRC)
+    (Bank.FCL, Currency.CRC, "FCL", AccountType.PENSION),
+    (Bank.ROP, Currency.CRC, "ROP", AccountType.PENSION),
+    (Bank.VOL, Currency.CRC, "VOL", AccountType.PENSION),
+    # Savings (CRC)
+    (Bank.MEMP, Currency.CRC, "MEMP", AccountType.SAVINGS),
+    (Bank.MPAT, Currency.CRC, "MPAT", AccountType.SAVINGS),
+    # Liabilities
+    (Bank.MORTGAGE, Currency.USD, "Mortgage", AccountType.LIABILITY),
+    # Crypto
+    (Bank.BAC, Currency.BTC, "BTC", AccountType.CRYPTO),
+    (Bank.BAC, Currency.XMR, "XMR", AccountType.CRYPTO),
 ]
 
 
@@ -40,6 +55,6 @@ def seed_db():
 
         existing_acc = session.exec(select(Account)).first()
         if not existing_acc:
-            for bank, currency, label, balance in DEFAULT_ACCOUNTS:
-                session.add(Account(bank=bank, currency=currency, label=label, balance=balance))
+            for bank, currency, label, account_type in DEFAULT_ACCOUNTS:
+                session.add(Account(bank=bank, currency=currency, label=label, account_type=account_type))
             session.commit()