feat: refactor database connection handling and add legacy map loading functionality

- Updated check-connections.mts to use Prisma with PostgreSQL adapter.
- Introduced databaseUrl.ts for resolving database URLs from environment variables.
- Added legacyMapLoader.ts to load and parse legacy map data.
- Implemented scenarioSeeder.ts to seed scenario data into the database.
- Created tests for scenario seeding in scenarioSeeder.test.ts.
- Configured Prisma datasource in prisma.config.ts to support dynamic database URLs.

packages/infra/package.json

@@ -13,11 +13,14 @@
         "typecheck": "tsc --noEmit"
     },
     "dependencies": {
-        "@prisma/client": "^5.18.0",
+        "@prisma/adapter-pg": "^7.2.0",
+        "@prisma/client": "^7.2.0",
+        "pg": "^8.16.3",
         "redis": "^4.7.0"
     },
     "devDependencies": {
-        "prisma": "^5.18.0",
+        "dotenv": "^17.2.3",
+        "prisma": "^7.2.0",
         "tsdown": "^0.18.3"
     }
 }