feat: add programme module and blog integration

- Add Programme Mongoose model with sub-schemas and migrateFromJson static method
- Add programme CRUD controller with audit logging and icon sanitization
- Add programme admin views (index, edit) with tabbed form and dynamic arrays
- Add seed migration script for programmes
- Add /api/programmes and /api/programmes/:id public API endpoints
- Register programme routes in admin and public router
- Update dashboard with Programmes card and API endpoint entries
- Update admin sidebar layout to include Programmes nav link

routes/index.js

@@ -15,6 +15,7 @@ const headerMenuController = require("../controllers/headerMenuController");
 const safetyController = require("../controllers/safetyController");
 // Booking flow removed
 
+const programmeController = require("../controllers/programmeController");
 const insuranceController = require("../controllers/insuranceController");
 const termsController = require("../controllers/termsController"); // <-- IMPORT ĐÃ CÓ
 const activityController = require("../controllers/activityController");
@@ -183,6 +184,10 @@ router.get("/api/service-slugs", serviceController.getServiceSlugs);
 router.get("/api/visa", visaController.api);
 router.get("/api/visa/country", visaController.apiCountries);
 
+// Programmes API
+router.get("/api/programmes", programmeController.api);
+router.get("/api/programmes/:id", programmeController.apiDetail);
+
 // Testimonials API
 const testimonialController = require("../controllers/testimonialController");
 router.get("/api/testimonials", testimonialController.api);