feat: continue tree rust family cutover

- add rust renderer/state-family scaffolds and inline compat host thinning for page tree, file tree, and picker
- route tree/filetree preflight, file projection, resource artifact, and stream delta contracts through rust plans
- preserve canonical move-order validation, file-tree search projection, and related frontend/runtime regression coverage

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

@@ -64,6 +64,8 @@ pub async fn next_sidebar(
             workspace_id: &effective_workspace_id,
             root_node_id: None,
             depth: None,
+            query: None,
+            max_results: None,
             projection: KernelProjectionKind::SidebarTree,
         },
     )