fix: wait for bounded receive scanning during sync pushes

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a1346b-72a4-7d40-b8bd-8b8ca346cfa2

tests/test_push_deadline.py

@@ -0,0 +1,37 @@
+"""Client deadlines must accommodate receive scanning without claiming timeout refusal."""
+import subprocess
+from pathlib import Path
+
+import sys
+sys.path.insert(0, str(Path(__file__).parent.parent / "scripts"))
+import repo_sync as module
+
+
+def test_push_budget_covers_admitted_scanner(monkeypatch, tmp_path):
+    observed = {}
+
+    def run(argv, **kwargs):
+        observed.update(argv=argv, **kwargs)
+        return subprocess.CompletedProcess(argv, 0, "", "")
+
+    monkeypatch.setattr(module.subprocess, "run", run)
+    ok, _ = module.push_ff(tmp_path)
+    assert ok
+    assert 90 < observed["timeout"] <= 180
+    assert "--force" not in observed["argv"]
+
+
+def test_timeout_is_unverified_without_retry_or_child_output(monkeypatch, tmp_path):
+    calls = []
+
+    def run(argv, **kwargs):
+        calls.append(argv)
+        raise subprocess.TimeoutExpired(argv, kwargs["timeout"], output="private diagnostic fixture")
+
+    monkeypatch.setattr(module.subprocess, "run", run)
+    ok, message = module.push_ff(tmp_path)
+    assert not ok
+    assert "remote outcome unverified" in message
+    assert "inspect the remote ref" in message
+    assert "private diagnostic fixture" not in message
+    assert len(calls) == 1