fix: show local-repo files in the cached-objects UI

Local repos store uploaded files in the local_files table, while
remote/proxy repos cache into the artifacts table. The shared "Cached
Objects" page always queried the artifacts table via
/api/v2/remotes/{name}/objects, so local packages (e.g. an uploaded RPM)
were servable but listed as "0 objects" in the UI.

- add ListLocalArtifacts, joining local_files with blobs and returning
  models.Artifact-shaped rows (size from the blob; counters zero and
  timestamps derived from created_at, since local files track no access)
- add LocalRoutes to the objects handler: listLocal reads local_files,
  evictLocal deletes via DeleteLocalFile; extract shared page parsing
  into pageBounds
- mount /api/v2/locals/{name}/objects (GET + DELETE) in the server
- add listLocalObjects/evictLocalObject to the UI client and route the
  Objects page to them when viewing a local repo
- cover the listing and eviction paths with a dockerised test

ui/src/api/client.ts

@@ -34,6 +34,12 @@ export const api = {
   evictObject: (remote: string, path: string) =>
     fetchJSON<void>(`/api/v2/remotes/${remote}/objects/${path}`, { method: 'DELETE' }),
 
+  listLocalObjects: (name: string, page = 1, perPage = 50) =>
+    fetchJSON<Artifact[]>(`/api/v2/locals/${name}/objects?page=${page}&per_page=${perPage}`),
+
+  evictLocalObject: (name: string, path: string) =>
+    fetchJSON<void>(`/api/v2/locals/${name}/objects/${path}`, { method: 'DELETE' }),
+
   flushRemoteCache: (remote: string) =>
     fetchJSON<void>(`/api/v2/remotes/${remote}/cache`, { method: 'DELETE' }),
 

ui/src/pages/Objects.tsx

@@ -182,16 +182,17 @@ export function Objects() {
   const load = useCallback(() => {
     if (!name) return;
     setLoading(true);
-    api.listObjects(name, 1, 5000)
+    const req = isLocal ? api.listLocalObjects(name, 1, 5000) : api.listObjects(name, 1, 5000);
+    req
       .then(a => setArtifacts(a || []))
       .finally(() => setLoading(false));
-  }, [name]);
+  }, [name, isLocal]);
 
   useEffect(() => { load(); }, [load]);
 
   const handleEvict = async (path: string) => {
     if (!name || !confirm(`Evict ${path}?`)) return;
-    await api.evictObject(name, path);
+    await (isLocal ? api.evictLocalObject(name, path) : api.evictObject(name, path));
     load();
   };