chore: archive finance, mail, moodlit apps and rename voxel-lava

- Move finance, mail, moodlit to apps-archived for later development
- Rename games/voxel-lava to games/voxelava

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

apps-archived/finance/apps/backend/src/db/database.module.ts

@@ -0,0 +1,26 @@
+import { Global, Module, OnModuleDestroy } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { getDb, closeConnection, DATABASE_CONNECTION, type Database } from './connection';
+
+@Global()
+@Module({
+	providers: [
+		{
+			provide: DATABASE_CONNECTION,
+			useFactory: (configService: ConfigService): Database => {
+				const databaseUrl = configService.get<string>('DATABASE_URL');
+				if (!databaseUrl) {
+					throw new Error('DATABASE_URL environment variable is not set');
+				}
+				return getDb(databaseUrl);
+			},
+			inject: [ConfigService],
+		},
+	],
+	exports: [DATABASE_CONNECTION],
+})
+export class DatabaseModule implements OnModuleDestroy {
+	async onModuleDestroy() {
+		await closeConnection();
+	}
+}