build: add Vue and Pinia to the browser build and unit tests

src/tooling/viteBuild.test.mjs

@@ -29,7 +29,8 @@ test('explicit build inputs preserve browser-only defines, plugin order and loop
   assert.equal(config.plugins[0].enforce, 'pre');
   assert.equal(config.plugins[1].name, 'host-check');
   assert.equal(config.plugins[1].enforce, 'pre');
-  assert.equal(config.plugins[4], plugin);
+  assert.equal(config.plugins[4].name, 'vite:vue');
+  assert.equal(config.plugins[5], plugin);
   assert.equal(config.server.host, 'localhost');
   assert.equal(config.server.port, 4173);
   assert.deepEqual(config.server.allowedHosts, ['localhost', '127.0.0.1']);
@@ -103,7 +104,7 @@ test('build helper does not discover environment values or construct local provi
       undefined,
     );
     assert.deepEqual(
-      config.plugins.slice(4).map((plugin) => plugin.name),
+      config.plugins.slice(5).map((plugin) => plugin.name),
       ['embed-framing', 'panel-build'],
     );
   } finally {
@@ -117,7 +118,7 @@ test('root config retains existing named exports and standalone provider order',
     assert.equal(compatibility[name], value, name);
   const config = standaloneConfig({ mode: 'test' });
   const standaloneProviders = config.plugins
-    .slice(4, -6)
+    .slice(5, -6)
     .map((plugin) => plugin.name);
   assert.equal(
     standaloneProviders.filter((name) => name === 'gemini-live-proxy').length,