feat(01-02): add /ready endpoint with database connectivity check

- Add GET /ready endpoint that checks database connection
- Returns 200 'ready' when connected, 503 when not
- Update Routes to require DataSource dependency
- Provide dataSourceLayer in Main.scala
- Use 'hikari' prefix for HikariCP config to avoid ZIO config conflict

summercms/src/Main.scala

@@ -4,6 +4,7 @@ import zio.config.typesafe.TypesafeConfigProvider
 
 import api.Routes
 import _root_.config.{AppConfig as SummerConfig}
+import db.QuillContext
 
 object Main extends ZIOAppDefault {
 
@@ -29,7 +30,11 @@ object Main extends ZIOAppDefault {
       _   <- Console.printLine(banner)
       _   <- Console.printLine(s"       Starting on port ${cfg.server.port}...")
       _   <- Console.printLine("")
-      _   <- Server.serve(Routes.routes).provide(Server.defaultWithPort(cfg.server.port))
+      // Note: Migrations are NOT auto-run. Use CLI to run migrations (Phase 5).
+      _   <- Server.serve(Routes.routes).provide(
+               Server.defaultWithPort(cfg.server.port),
+               QuillContext.dataSourceLayer
+             )
     } yield ()
 
 }