feat(channels): add google chat adapter and webhook route

src/cli/shared.test.ts

@@ -159,6 +159,18 @@ models:
       const teams = redacted.teams as Record<string, unknown>;
       expect(teams.app_password).toBe('***');
     });
+
+    it('redacts service_account_json (google chat)', () => {
+      const config = {
+        google_chat: {
+          service_account_json: '{"private_key":"secret"}',
+        },
+        models: { default: { provider: 'anthropic', model: 'claude' } },
+      };
+      const redacted = redactSecrets(config);
+      const googleChat = redacted.google_chat as Record<string, unknown>;
+      expect(googleChat.service_account_json).toBe('***');
+    });
   });
 
   describe('getDataDir', () => {

src/cli/shared.ts

@@ -74,7 +74,7 @@ export function loadConfigSafe(configPath?: string): { config?: Config; error?:
 
 /** Deep-clone config and replace sensitive fields with '***'. */
 export function redactSecrets(config: Record<string, unknown>): Record<string, unknown> {
-  const sensitiveKeys = ['bot_token', 'api_key', 'auth_token', 'access_token', 'app_password'];
+  const sensitiveKeys = ['bot_token', 'api_key', 'auth_token', 'access_token', 'app_password', 'service_account_json', 'private_key'];
 
   function redact(obj: unknown): unknown {
     if (obj === null || obj === undefined) {return obj;}