fix: tie proxy readiness to actual socket bind; report real port; sync stop

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/test_proxy.py

@@ -1,6 +1,9 @@
 from types import SimpleNamespace
 
-from auto_reverse.proxy import flow_from_mitm
+import pytest
+
+from auto_reverse.proxy import ProxyServer, flow_from_mitm
+from auto_reverse.store import FlowStore, ScopeFilter
 
 
 def _fake_mitm_flow():
@@ -32,3 +35,16 @@ def test_flow_from_mitm_handles_missing_response():
     flow.response = None
     captured = flow_from_mitm(flow)
     assert captured is None
+
+
+def test_proxy_server_binds_and_reports_real_port(tmp_path):
+    store = FlowStore(ScopeFilter(target_hosts={"ex.com"}))
+    server = ProxyServer(store, archive_path=tmp_path / "archive.log", port=0)
+    try:
+        server.start()
+    except Exception as exc:
+        pytest.skip(f"proxy bind unavailable: {exc}")
+    try:
+        assert server.port != 0  # real OS-assigned port after binding
+    finally:
+        server.stop()