Milestone 3: candidate graph generation

src/repo_registry/web_api/app.py

@@ -149,6 +149,18 @@ def list_observed_facts(
         raise HTTPException(status_code=404, detail=str(exc)) from exc
 
 
+@app.get("/repos/{repository_id}/analysis-runs/{analysis_run_id}/candidate-graph")
+def get_candidate_graph(
+    repository_id: int,
+    analysis_run_id: int,
+    service: RegistryService = Depends(get_service),
+) -> dict[str, object]:
+    try:
+        return asdict(service.candidate_graph(repository_id, analysis_run_id))
+    except NotFoundError as exc:
+        raise HTTPException(status_code=404, detail=str(exc)) from exc
+
+
 @app.post("/repos/{repository_id}/abilities", status_code=201)
 def create_ability(
     repository_id: int,