Money tracker: bank balance is the source of truth for synced accounts

Sync stores the bank-reported balance (ITAV preferred) on the account and keeps
one Bank balance adjustment row so the tracker total equals the bank balance.
Accounts panel shows the bank balance and flags any drift.

src/lib/server/db/schema/money-tracker.ts

@@ -32,6 +32,10 @@ export const moneyAccounts = moneySchema.table(
 		// Bank-side account identifier (Enable Banking account uid) for synced accounts.
 		externalUid: text('external_uid'),
 		provider: text('provider').notNull().default('manual'),
+		// Last balance reported by the bank (synced accounts); the source of truth for the total.
+		bankBalanceCents: integer('bank_balance_cents'),
+		bankBalanceType: text('bank_balance_type'),
+		bankBalanceAt: timestamptz('bank_balance_at'),
 		...timestamps
 	},
 	(table) => [