Fix starred scope page tree and local edit save

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

@@ -2767,6 +2767,20 @@ fn load_local_folder_file_tree_scope_snapshot(
 
 pub fn load_local_folder_page_tree_snapshot(
     root_uri: &str,
+) -> Result<ProjectionSnapshot, WebError> {
+    load_local_folder_page_tree_snapshot_for_scope(root_uri, None)
+}
+
+pub fn load_local_folder_page_tree_scope_snapshot(
+    root_uri: &str,
+    parent_relative_path: &str,
+) -> Result<ProjectionSnapshot, WebError> {
+    load_local_folder_page_tree_snapshot_for_scope(root_uri, Some(parent_relative_path))
+}
+
+fn load_local_folder_page_tree_snapshot_for_scope(
+    root_uri: &str,
+    parent_relative_path: Option<&str>,
 ) -> Result<ProjectionSnapshot, WebError> {
     #[cfg(test)]
     LOCAL_PAGE_TREE_SNAPSHOT_TEST_LOADS.fetch_add(1, std::sync::atomic::Ordering::SeqCst);
@@ -2787,9 +2801,25 @@ pub fn load_local_folder_page_tree_snapshot(
 
     let workspace_id = local_workspace_id(&canonical_root);
     let root_source_uri = file_uri_for_path(&canonical_root);
+    let parent_relative_path = parent_relative_path
+        .map(str::trim)
+        .filter(|value| !value.is_empty() && *value != ".")
+        .unwrap_or("");
+    let scan_root = if parent_relative_path.is_empty() {
+        canonical_root.clone()
+    } else {
+        resolve_metadata_relative_path(&canonical_root, parent_relative_path)?
+    };
+    if !scan_root.is_dir() {
+        return Err(WebError::bad_request_code(
+            "local_folder_parent_not_directory",
+            "PageTree scope parentRelativePath 必须指向目录",
+        ));
+    }
     let watch_revision = local_folder_watch_revision_for_root(&canonical_root, &root_source_uri)?;
+    let cache_key = format!("{root_source_uri}\n{parent_relative_path}");
     if let Ok(cache) = local_page_tree_snapshot_cache().lock() {
-        if let Some(entry) = cache.get(&root_source_uri) {
+        if let Some(entry) = cache.get(&cache_key) {
             if entry.watch_revision.revision == watch_revision.revision
                 && entry.watch_revision.entry_count == watch_revision.entry_count
                 && entry.watch_revision.latest_modified_ms == watch_revision.latest_modified_ms
@@ -2804,7 +2834,7 @@ pub fn load_local_folder_page_tree_snapshot(
     LOCAL_PAGE_TREE_SNAPSHOT_SCAN_TEST_LOADS.fetch_add(1, std::sync::atomic::Ordering::SeqCst);
     scan_markdown_page_tree(
         &canonical_root,
-        &canonical_root,
+        &scan_root,
         None,
         0,
         None,
@@ -2859,6 +2889,7 @@ pub fn load_local_folder_page_tree_snapshot(
             "projection": "page_tree",
             "sourceKind": "local_folder",
             "rootUri": root_source_uri,
+            "parentRelativePath": parent_relative_path,
             "watchRevision": watch_revision,
             "items": items,
         }),
@@ -2868,7 +2899,7 @@ pub fn load_local_folder_page_tree_snapshot(
             cache.clear();
         }
         cache.insert(
-            root_source_uri,
+            cache_key,
             LocalPageTreeSnapshotCacheEntry {
                 watch_revision,
                 snapshot: snapshot.clone(),