chore: align sqlite control plane architecture

- replace default Convex control-plane wording with Rust SQLite control-plane across architecture, AGENTS, Reasonix, and design docs

- retire root Convex functions source and deploy script into recycle while keeping explicit cloud/compat/sync-replica boundaries

- add control-plane migration guard/docs and keep CodeGraph refreshed after the SQLite control-plane cutover

rust/crates/mnote-web/src/routes/mod.rs

@@ -131,6 +131,26 @@ pub fn build_router(state: AppState) -> Router {
             "/api/admin/access-policy/grants/{grant_id}",
             delete(local_folder_source::delete_local_access_grant),
         )
+        .route(
+            "/api/user/access-policy",
+            get(local_folder_source::get_user_access_policy),
+        )
+        .route(
+            "/api/user/access-policy/grants",
+            post(local_folder_source::create_user_access_grant),
+        )
+        .route(
+            "/api/user/access-policy/grants/{grant_id}",
+            delete(local_folder_source::delete_user_access_grant),
+        )
+        .route(
+            "/api/admin/share-links",
+            get(local_folder_source::get_share_links).post(local_folder_source::create_share_link),
+        )
+        .route(
+            "/api/admin/share-links/{link_id}",
+            delete(local_folder_source::delete_share_link),
+        )
         .route(
             "/api/admin/share-grants",
             get(local_folder_source::get_share_grants)