docs: Add full Swagger JSDoc coverage

server/api/controllers/users/index.js

@@ -3,6 +3,36 @@
  * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
  */
 
+/**
+ * @swagger
+ * /api/users:
+ *   get:
+ *     summary: Get all users
+ *     description: Retrieves a list of all users. Requires admin or project owner privileges.
+ *     tags:
+ *       - Users
+ *     responses:
+ *       200:
+ *         description: List of users retrieved successfully
+ *         content:
+ *           application/json:
+ *             schema:
+ *               type: object
+ *               required:
+ *                 - items
+ *               properties:
+ *                 items:
+ *                   type: array
+ *                   items:
+ *                     $ref: '#/components/schemas/User'
+ *       400:
+ *         $ref: '#/components/responses/ValidationError'
+ *       401:
+ *         $ref: '#/components/responses/Unauthorized'
+ *       403:
+ *         $ref: '#/components/responses/Forbidden'
+ */
+
 const Errors = {
   NOT_ENOUGH_RIGHTS: {
     notEnoughRights: 'Not enough rights',