feat: Minimal user api controller on hummingbird app, not sure there's big wins over vapor.

Sources/HApp/Controllers/Api/UserController.swift

@@ -0,0 +1,28 @@
+import DatabaseClient
+import Hummingbird
+import HummingbirdFluent
+import SharedModels
+
+struct UserController<Context: RequestContext> {
+  let db: DatabaseClient.Users
+
+  func addRoutes(to group: RouterGroup<Context>) {
+    group.get(use: list)
+      .post(use: create)
+  }
+
+  @Sendable
+  func list(_ request: Request, context: Context) async throws -> [User] {
+    try await db.fetchAll()
+  }
+
+  @Sendable
+  func create(_ request: Request, context: Context) async throws -> User {
+    let create = try await request.decode(as: User.Create.self, context: context)
+    let user = try await db.create(create)
+    return user
+  }
+}
+
+extension User.Create: ResponseCodable {}
+extension User: ResponseCodable {}