test(v1.4.0-p1): add failing tests for timeout and YAML config

RED phase: 4 new tests in test_client.py for graceful timeout on
pagination, 12 new tests in test_config.py for YAML config module
(import fails, module not created yet).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/test_client.py

@@ -427,3 +427,90 @@ class TestGetLatestCommit:
             result = client.get_latest_commit("admin", "missing-repo")
 
         assert result is None
+
+
+class TestGetPaginatedGracefulTimeout:
+    """Test graceful degradation on timeout during pagination."""
+
+    def _make_client(self):
+        return GiteaClient("http://gitea.local:3000", "tok")
+
+    @patch("time.sleep")
+    def test_get_paginated_timeout_page2_returns_partial(self, mock_sleep):
+        """Timeout on page 2 returns partial data from page 1."""
+        client = self._make_client()
+
+        page1 = [{"id": i} for i in range(50)]  # Full page -> triggers page 2
+
+        mock_resp1 = MagicMock()
+        mock_resp1.raise_for_status = MagicMock()
+        mock_resp1.json.return_value = page1
+
+        # Page 2: _get_with_retry exhausts retries and raises ReadTimeout
+        with patch.object(
+            client,
+            "_get_with_retry",
+            side_effect=[mock_resp1, requests.exceptions.ReadTimeout("timeout page 2")],
+        ):
+            result = client._get_paginated("/api/v1/user/repos")
+
+        assert result == page1
+
+    @patch("time.sleep")
+    def test_get_paginated_timeout_page1_raises(self, mock_sleep):
+        """Timeout on page 1 raises the exception (no partial data possible)."""
+        client = self._make_client()
+
+        with patch.object(
+            client,
+            "_get_with_retry",
+            side_effect=requests.exceptions.ReadTimeout("timeout page 1"),
+        ):
+            with pytest.raises(requests.exceptions.ReadTimeout):
+                client._get_paginated("/api/v1/user/repos")
+
+    @patch("time.sleep")
+    def test_get_paginated_connect_timeout_graceful(self, mock_sleep):
+        """ConnectTimeout on page 2 returns partial data gracefully."""
+        client = self._make_client()
+
+        page1 = [{"id": i} for i in range(50)]
+
+        mock_resp1 = MagicMock()
+        mock_resp1.raise_for_status = MagicMock()
+        mock_resp1.json.return_value = page1
+
+        with patch.object(
+            client,
+            "_get_with_retry",
+            side_effect=[mock_resp1, requests.exceptions.ConnectTimeout("connect timeout")],
+        ):
+            result = client._get_paginated("/api/v1/user/repos")
+
+        assert result == page1
+
+    @patch("time.sleep")
+    def test_get_paginated_partial_data_emits_warning(self, mock_sleep):
+        """Graceful degradation emits a warning about partial data."""
+        import warnings
+
+        client = self._make_client()
+
+        page1 = [{"id": i} for i in range(50)]
+
+        mock_resp1 = MagicMock()
+        mock_resp1.raise_for_status = MagicMock()
+        mock_resp1.json.return_value = page1
+
+        with patch.object(
+            client,
+            "_get_with_retry",
+            side_effect=[mock_resp1, requests.exceptions.ReadTimeout("timeout")],
+        ):
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter("always")
+                client._get_paginated("/api/v1/user/repos")
+
+        assert len(w) == 1
+        assert "Partial data" in str(w[0].message)
+        assert "page 2" in str(w[0].message)