publish desktop, and stop counting node_modules as a plugin

The catalogue row and the bundled offline fallback, so the plugin installs from the marketplace like
every other. Listed honestly: its permission is owner-only at every path, and its websocket is not
mounted yet — the README and BLOCKERS.md say so rather than letting an install discover it.

marketplace-sync globs plugins/ itself rather than going through discoverPlugins, so the node_modules
skip added there did not cover it. Same fix, second place: it was reporting 15/16 and 16/17.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

scripts/marketplace-sync.ts

@@ -147,7 +147,11 @@ function rawUrl(repoUrl: string, path: string): string {
 }
 
 const dirs = existsSync(PLUGINS_DIR)
-  ? [...new Bun.Glob('*/').scanSync({ cwd: PLUGINS_DIR, onlyFiles: false })].map((d) => join(PLUGINS_DIR, d))
+  ? [...new Bun.Glob('*/').scanSync({ cwd: PLUGINS_DIR, onlyFiles: false })]
+      // Not a plugin: the shared install target for plugin npm packages, which lives here because bun
+      // resolves node_modules up the tree. `discoverPlugins` skips it for the same reason.
+      .filter((d) => d.replace(/\/$/, '') !== 'node_modules')
+      .map((d) => join(PLUGINS_DIR, d))
   : [];
 
 if (dirs.length === 0) {