feat: add roadmap CRUD module to CMS

New endpoints under /v1/landing/cms:
- GET /roadmap — public, paginated list
- GET /roadmap/detail/{id} — public, detail
- POST /roadmap/vote/{id} — public, increment votes
- POST /roadmap/create — protected (Administrator)
- PATCH /roadmap/update/{id} — protected (Administrator)
- DELETE /roadmap/delete/{id} — protected (Administrator)

Table: roadmap_items (id, title, description, status, votes, is_deleted, created_at, updated_at)
Status values: upcoming, in_progress, completed

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

imphnen-gateway/src/lib.rs

@@ -2,8 +2,8 @@ use axum::{
 	Extension, Router, middleware::from_fn, response::Redirect, routing::get,
 };
 use imphnen_cms::{
-	events_protected_routes, events_public_routes, qr_router, testimonials_protected_routes,
-	testimonials_public_routes,
+	events_protected_routes, events_public_routes, qr_router, roadmap_protected_routes,
+	roadmap_public_routes, testimonials_protected_routes, testimonials_public_routes,
 };
 use imphnen_dimentorin::{
 	mentors_protected_routes, mentors_public_routes, sessions_protected_routes,
@@ -62,10 +62,12 @@ pub async fn gateway_service(postgres_clients: PostgresClients) -> Router {
 	let cms_routes = Router::new()
 		.merge(testimonials_public_routes(db.clone()))
 		.merge(events_public_routes(db.clone()))
+		.merge(roadmap_public_routes(db.clone()))
 		.merge(
 			Router::new()
 				.merge(events_protected_routes(db.clone()))
 				.merge(testimonials_protected_routes(db.clone()))
+				.merge(roadmap_protected_routes(db.clone()))
 				.layer(from_fn(auth_middleware)),
 		);