fix

apps/api/internal/processing/openai_test.go

@@ -184,6 +184,14 @@ func TestOpenAIClient_doComplete_gpt56LunaUsesMaxCompletionTokens(t *testing.T)
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		var req map[string]any
 		_ = json.NewDecoder(r.Body).Decode(&req)
+		msgs, _ := req["messages"].([]any)
+		if len(msgs) < 1 {
+			t.Errorf("expected messages")
+		} else if m0, ok := msgs[0].(map[string]any); ok {
+			if m0["role"] != "developer" {
+				t.Errorf("system role=%v want developer for gpt-5.6", m0["role"])
+			}
+		}
 		if _, ok := req["temperature"]; ok {
 			t.Errorf("temperature must be omitted for gpt-5.6-luna")
 		}