CI: tolerate runner mtime lag and stream heartbeat race in 2 browser tests (test-only, no production code change; playwright: 0.05s sleep after write_control, runner mtime lags wall clock 0.2-1.0ms; stream: drain waiting heartbeats until EOF after terminal status)

cloud/tests/test_playwright_bridge.py

@@ -171,6 +171,12 @@ class BridgeTestCase(unittest.TestCase):
         self.assertEqual(effective_holder(self.tmp.name, state),
                          "agent")
         write_control(self.tmp.name, "user")
+        # Gitea runner filesystem mtime lags wall clock by ~1ms
+        # (measured 0.2-1.0ms in runner container), so a
+        # back-to-back write can appear older than updated_at.
+        # Wait out the lag; the test's intent is "newer control
+        # wins", not "same-millisecond writes are ordered".
+        time.sleep(0.05)
         self.assertEqual(effective_holder(self.tmp.name, state),
                          "user")
         # Once the MCP polls, the state file catches up and both