feat(companion): support runtime client autoConnect mode

src/companion/runtimeClient.test.ts

@@ -268,4 +268,31 @@ describe('CompanionRuntimeClient', () => {
       client.disconnect();
     }
   });
+
+  it('supports autoConnect mode for one-shot RPC usage', async () => {
+    if (!LISTEN_ALLOWED) {
+      return;
+    }
+
+    const client = new CompanionRuntimeClient({
+      url: `ws://127.0.0.1:${TEST_PORT}`,
+      token: TEST_TOKEN,
+      autoConnect: true,
+    });
+
+    expect(client.connected).toBe(false);
+
+    try {
+      const register = await client.registerNode({
+        nodeId: 'auto-connect-node',
+        role: 'companion',
+        capabilities: ['ui.canvas'],
+      });
+
+      expect(register.registered).toBe(true);
+      expect(client.connected).toBe(true);
+    } finally {
+      client.disconnect();
+    }
+  });
 });