fix(cli): bypass stale cache on tag-based registry lookup (#648)

The add command's tag fallback (e.g. `hyperframes add html-in-canvas`)
uses the same 24h cached manifest as single-item lookups. When new items
are added to the registry, the stale cache returns an incomplete item
list, causing tag resolution to find zero matches.

Pass skipCache: true in the tag fallback path so it always fetches the
latest manifest from the registry.

packages/cli/src/commands/add.ts

@@ -248,7 +248,7 @@ export default defineCommand({
 
       let items: Awaited<ReturnType<typeof resolveItemsByTag>>;
       try {
-        items = await resolveItemsByTag(args.name, { baseUrl: config.registry });
+        items = await resolveItemsByTag(args.name, { baseUrl: config.registry, skipCache: true });
       } catch {
         items = [];
       }