Dependency graph vizualization

tests/test_web_api.py

@@ -189,6 +189,9 @@ def test_openapi_contract_snapshot_for_stable_agent_paths():
         "/repos/{repository_id}/ability-map": {
             "get": {"tags": ["registry"], "success_schema": "RepositoryAbilityMapResponse"}
         },
+        "/repos/{repository_id}/dependency-graph": {
+            "get": {"tags": ["registry"], "success_schema": "object"}
+        },
         "/repos/{repository_id}/analysis-runs": {
             "get": {"tags": ["analysis"], "success_schema": "list[AnalysisRunResponse]"},
             "post": {"tags": ["analysis"], "success_schema": "ScanSummaryResponse"},
@@ -1365,6 +1368,10 @@ def test_ui_register_analyze_and_approve_loop(tmp_path):
             f'<a class="button secondary" href="/ui/repos/{repository_id}/scope">SCOPE</a>'
             in detail_response.text
         )
+        assert (
+            f'<a class="button secondary" href="/ui/repos/{repository_id}/dependency-graph">Dependency Graph</a>'
+            in detail_response.text
+        )
 
         repo_scope_response = client.get(f"/ui/repos/{repository_id}/scope")
         assert repo_scope_response.status_code == 200
@@ -1491,6 +1498,24 @@ def test_ui_register_analyze_and_approve_loop(tmp_path):
         assert "Elements" in approved_detail.text
         assert "q=Report+Service+Status" in approved_detail.text
 
+        graph_response = client.get(f"/repos/{repository_id}/dependency-graph")
+        assert graph_response.status_code == 200
+        graph_payload = graph_response.json()
+        assert graph_payload["mode"] == "full"
+        assert graph_payload["metrics"]["node_count"] >= 4
+        assert graph_payload["metrics"]["edge_count"] >= 3
+        assert any(
+            element["data"].get("kind") == "scope"
+            for element in graph_payload["elements"]
+            if "source" not in element["data"]
+        )
+
+        graph_page = client.get(f"/ui/repos/{repository_id}/dependency-graph")
+        assert graph_page.status_code == 200
+        assert "Dependency Graph" in graph_page.text
+        assert "cytoscape.min.js" in graph_page.text
+        assert 'data-graph-mode="impact"' in graph_page.text
+
         scope_listing = client.get(
             f"/ui/repos/{repository_id}/elements",
             params={"scope": "all", "type": "scopes", "entry_filter": "approved"},