Browser tools: full accessibility snapshot, trusted input, dialogs, evaluate, and tab controls (#1881)

* feat(browser): replace flat snapshot with ARIA tree and page-side refs

* feat(browser): trusted CDP input with actionability waits

* feat(browser): auto-handle javascript dialogs

* feat(browser): add browser_evaluate

* feat(browser): add scroll, resize, and close_tab tools

* fix(browser): review fixes for snapshot/input/dialog seams

* fix(browser): address review findings on dialog capture, truncation, and keypress targets

* fix(harness): drop resize check that cannot run under parked compositor surfaces

* fix(browser): second review round — snapshot fidelity, key input, dialog scoping

packages/protocol/src/messages.browser-automation.test.ts

@@ -100,6 +100,28 @@ describe("browser automation protocol integration", () => {
     });
   });
 
+  test("browser host capability accepts new tool commands as supported commands", () => {
+    expect(
+      WSHelloMessageSchema.parse({
+        type: "hello",
+        clientId: "client-1",
+        clientType: "mobile",
+        protocolVersion: 1,
+        capabilities: {
+          [CLIENT_CAPS.browserHost]: {
+            supportedCommands: ["evaluate", "scroll", "resize", "close_tab"],
+            hostKind: "desktop app",
+          },
+        },
+      }).capabilities,
+    ).toMatchObject({
+      [CLIENT_CAPS.browserHost]: {
+        supportedCommands: ["evaluate", "scroll", "resize", "close_tab"],
+        hostKind: "desktop app",
+      },
+    });
+  });
+
   test("hello remains valid when no browser host capability is advertised", () => {
     expect(
       WSHelloMessageSchema.parse({