perf: end clicks without load

e2e/run.mjs

@@ -410,6 +410,7 @@ function startFixtureServer(geoIpFixture, geoIpAsnFixture) {
           <h1 id="fixture-title">Donut E2E Browser Fixture</h1>
           <p id="path">${url.pathname}</p>
           <button id="fixture-button" onclick="this.dataset.clicked='yes'; this.textContent='Clicked'">Click fixture</button>
+          <a id="fixture-link" href="/linked">Open the linked page</a>
           <script>window.__fixtureReady = true;</script>
         </body>
       </html>`);

e2e/tests/browser.test.mjs

@@ -691,6 +691,27 @@ test("real Wayfern fingerprinting, terms, API automation, CDP, cookies, and proc
     assert.ok(echo.userAgent.length > 20);
     assert.match(await cdp.evaluate("document.cookie"), /donut_e2e=browser-ok/);
 
+    // A click that only changes the page ends a moment after the click, not
+    // at the load timeout; a link click still waits for its load and says so.
+    const agentClick = async (locator) => {
+      const started = Date.now();
+      const answer = await request(
+        `${base}/v1/profiles/${profile.id}/agent/click`,
+        { method: "POST", token: saved.api_token, body: { locator } },
+      );
+      assert.equal(answer.response.status, 200, JSON.stringify(answer.value));
+      return { ...answer.value, ms: Date.now() - started };
+    };
+    const inPlace = await agentClick({ role: "button", name: "Clicked" });
+    assert.equal(inPlace.navigated, false);
+    assert.ok(inPlace.ms < 5000, `an in-place click took ${inPlace.ms} ms`);
+    const link = await agentClick({ role: "link", name: "Open the linked page" });
+    assert.equal(link.navigated, true);
+    assert.equal(
+      await cdp.evaluate("document.querySelector('#path').textContent"),
+      "/linked",
+    );
+
     const runningProfile = (await app.invoke("list_browser_profiles")).find(
       (item) => item.id === profile.id,
     );