refactor: move bundled plugin policy into manifests

extensions/google/openclaw.plugin.json

@@ -1,6 +1,8 @@
 {
   "id": "google",
+  "enabledByDefault": true,
   "providers": ["google", "google-gemini-cli"],
+  "autoEnableWhenConfiguredProviders": ["google-gemini-cli"],
   "cliBackends": ["google-gemini-cli"],
   "providerAuthEnvVars": {
     "google": ["GEMINI_API_KEY", "GOOGLE_API_KEY"]

extensions/google/src/gemini-web-search-provider.ts

@@ -247,6 +247,7 @@ export function createGeminiWebSearchProvider(): WebSearchProviderPlugin {
     id: "gemini",
     label: "Gemini (Google Search)",
     hint: "Requires Google Gemini API key · Google Search grounding",
+    onboardingScopes: ["text-inference"],
     credentialLabel: "Google Gemini API key",
     envVars: ["GEMINI_API_KEY"],
     placeholder: "AIza...",