Add persistent cross-game player bank (Refs #146)

src/lib/server/db/migrations.ts

@@ -18,6 +18,7 @@ import { migrateAuthSchema, migrateSuperViewerRole } from '../auth/schema.js';
 import { migrateGameFileSchema } from '../game-files/schema.js';
 import { migrateLeaderboardReports } from './leaderboard-reports.js';
 import { migratePlayerScoreTotal } from './player-score-total.js';
+import { migrateBank } from './bank.js';
 import type { Migration } from './migration-runner.js';
 
 // Append only: never renumber entries or change an applied migration to add an
@@ -109,7 +110,8 @@ export const migrations: readonly Migration[] = [
         version: 19,
         name: 'cumulative player score per match',
         run: migratePlayerScoreTotal
-    }
+    },
+    { version: 20, name: 'persistent player bank and transfer ledger', run: migrateBank }
 ];
 
 export const databaseVersion = migrations.length;