feat: Add skeleton for api key module (#6451)

Adds a module skeleton for the API Key module.
Implementation of functionalities will follow in separate PRs

packages/api-key/src/models/api-key.ts

@@ -0,0 +1,41 @@
+import { generateEntityId } from "@medusajs/utils"
+
+import {
+  BeforeCreate,
+  Entity,
+  OnInit,
+  PrimaryKey,
+  Property,
+} from "@mikro-orm/core"
+
+// TODO:
+@Entity()
+export default class ApiKey {
+  @PrimaryKey({ columnType: "text" })
+  id: string
+
+  @Property({
+    onCreate: () => new Date(),
+    columnType: "timestamptz",
+    defaultRaw: "now()",
+  })
+  created_at: Date
+
+  @Property({
+    onCreate: () => new Date(),
+    onUpdate: () => new Date(),
+    columnType: "timestamptz",
+    defaultRaw: "now()",
+  })
+  updated_at: Date
+
+  @BeforeCreate()
+  onCreate() {
+    this.id = generateEntityId(this.id, "apk")
+  }
+
+  @OnInit()
+  onInit() {
+    this.id = generateEntityId(this.id, "apk")
+  }
+}

packages/api-key/src/models/index.ts

@@ -0,0 +1 @@
+export { default as ApiKey } from "./api-key"