Statistiche per sessione di produzione: filtro production_run_id, elenco sessioni, select Sessione (#58)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/frontend/flask_app/tests/test_statistics.py

@@ -112,3 +112,21 @@ class TestSPCProxy:
         assert resp.status_code == 200
         data = resp.get_json()
         assert "cp" in data
+
+
+class TestRunsProxy:
+    """#58: filtro per sessione di produzione."""
+
+    def test_runs_proxy(self, logged_in_client, mock_api_client):
+        mock_api_client.get.return_value = [{"id": 5, "measurement_count": 3}]
+        resp = logged_in_client.get("/statistics/api/runs?recipe_id=7")
+        assert resp.status_code == 200
+        assert resp.get_json()[0]["id"] == 5
+        args, kwargs = mock_api_client.get.call_args
+        assert args[0] == "/api/statistics/runs"
+        assert kwargs["params"] == {"recipe_id": "7"}
+
+    def test_summary_forwards_production_run_id(self, logged_in_client, mock_api_client):
+        mock_api_client.get.return_value = {"total": 1}
+        logged_in_client.get("/statistics/api/summary?recipe_id=1&production_run_id=5")
+        assert mock_api_client.get.call_args.kwargs["params"]["production_run_id"] == "5"