fix local ext fetch

src-tauri/src/scanner.rs

@@ -205,16 +205,17 @@ fn scan_extensions_for_profile(
     };
 
     for (extension_id, extension_value) in extension_settings {
-        let Some(manifest) = extension_value.get("manifest") else {
-            continue;
-        };
-
         let Some(install_dir) =
             resolve_extension_install_dir(profile_path, extension_id, extension_value)
         else {
             continue;
         };
 
+        let manifest = load_extension_manifest(&install_dir, extension_value);
+        let Some(manifest) = manifest.as_ref() else {
+            continue;
+        };
+
         let name = resolve_extension_name(manifest, &install_dir)
             .filter(|value| !value.is_empty())
             .unwrap_or_else(|| extension_id.clone());
@@ -260,6 +261,11 @@ fn scan_extensions_for_profile(
     }
 }
 
+fn load_extension_manifest(install_dir: &Path, extension_value: &Value) -> Option<Value> {
+    read_json_file(&install_dir.join("manifest.json"))
+        .or_else(|| extension_value.get("manifest").cloned())
+}
+
 fn resolve_extension_install_dir(
     profile_path: &Path,
     extension_id: &str,