units,lesson as standalone

routes/client/lessons.routes.js

@@ -3,6 +3,7 @@
  * Type of Program: Router
  * Description: Standalone Lesson consumption — each Lesson runs independently.
  *
+ *   GET  /client/lessons                  → learner-facing lesson library
  *   GET  /client/lessons/:uuid            → lesson with full block content
  *   POST /client/lessons/:uuid/progress   → standalone reading progress
  *                                           (course NULL; body.unit_uuid optional)
@@ -14,6 +15,7 @@ const express = require('express');
 const router  = express.Router();
 const ctrl = require('../../controllers/client/units.controller');
 
+router.get('/', ctrl.getLessons);
 router.get('/:uuid', ctrl.getLessonByUuid);
 router.post('/:uuid/progress', ctrl.upsertStandaloneLessonProgress);