chore(oas): replace response with $ref class JSDoc (Admin D-N) (#3015)

### Scope

Admin routes directories D to N.

### What

Move inline OAS response schema declaration under their respective class declarations in order to expose them through  `#/components/schemas`. Replace inline OAS response schema with a `$ref` reference pointing to the newly declared schema.

### Why

Having response declared as its own "named" schema will allow OAS code generators to output typed entities/DTO that can be consumed without having to reference the route/operation.

### How

Declare a new @schema JSDoc for each "Res" class used to parse and validate request body. Move the current inline requestBody to the new @schema.

### Test

- Ran OAS validator.
- Ran docs build script.

Expect no visible changes to the documentation.

packages/medusa/src/api/routes/admin/notes/create-note.ts

@@ -52,10 +52,7 @@ import { EntityManager } from "typeorm"
  *     content:
  *       application/json:
  *         schema:
- *           type: object
- *           properties:
- *             note:
- *               $ref: "#/components/schemas/Note"
+ *           $ref: "#/components/schemas/AdminNotesRes"
  *   "400":
  *     $ref: "#/components/responses/400_error"
  *   "401":