feat: add database schema support for gateway and game profiles

- Introduced `dbSchema` configuration option in GatewayApiConfig and GatewayOrchestratorConfig.
- Implemented schema resolution logic in environment configuration functions.
- Updated context and orchestrator factory to use GatewayPrismaClient instead of PrismaClient.
- Refactored orchestrator server and profile repository to accommodate new database schema handling.
- Created separate Prisma schemas for game and gateway in the infra package.
- Enhanced Postgres connector to support schema overrides in database URLs.
- Updated documentation to reflect changes in database schema handling.
- Added new Prisma generation and database push scripts for game and gateway schemas.

.env.ci.example

@@ -1,18 +1,20 @@
 POSTGRES_DB=sammo_test
 POSTGRES_USER=sammo
 POSTGRES_PASSWORD=ci-postgres
+POSTGRES_SCHEMA=public
 REDIS_PASSWORD=ci-redis
 REDIS_HOST=127.0.0.1
 REDIS_PORT=16379
 REDIS_DB=0
 GAME_TOKEN_SECRET=ci-secret
 GATEWAY_REDIS_PREFIX=sammo:gateway
+GATEWAY_DB_SCHEMA=public
 GATEWAY_API_HOST=127.0.0.1
 GATEWAY_API_PORT=13000
 GATEWAY_PUBLIC_URL=http://localhost:13000
 GAME_API_HOST=127.0.0.1
 GAME_API_PORT=14000
-PROFILE=che
+PROFILE=hwe
 SCENARIO=default
 KAKAO_REST_KEY=ci-kakao-rest-key
 KAKAO_REDIRECT_URI=http://localhost:13000/oauth/kakao/callback