feat(api): add namespaces, batch ops, and admin logs

internal/api/model_handler_test.go

@@ -147,3 +147,56 @@ func TestDeleteModel_RemovesMeta(t *testing.T) {
 		t.Fatalf("expected model deleted, got count=%d", remaining)
 	}
 }
+
+func TestBatchModels_Delete(t *testing.T) {
+	h, db, mr := newTestHandlerWithRedis(t)
+
+	r := gin.New()
+	r.POST("/admin/models", h.CreateModel)
+	r.POST("/admin/models/batch", h.BatchModels)
+
+	create := func(name string) uint {
+		reqBody := map[string]any{"name": name}
+		b, _ := json.Marshal(reqBody)
+		req := httptest.NewRequest(http.MethodPost, "/admin/models", bytes.NewReader(b))
+		req.Header.Set("Content-Type", "application/json")
+		rr := httptest.NewRecorder()
+		r.ServeHTTP(rr, req)
+		if rr.Code != http.StatusCreated {
+			t.Fatalf("expected 201, got %d body=%s", rr.Code, rr.Body.String())
+		}
+		var created model.Model
+		if err := json.Unmarshal(rr.Body.Bytes(), &created); err != nil {
+			t.Fatalf("unmarshal: %v", err)
+		}
+		return created.ID
+	}
+
+	id1 := create("ns.b1")
+	id2 := create("ns.b2")
+
+	payload := map[string]any{
+		"action": "delete",
+		"ids":    []uint{id1, id2},
+	}
+	b, _ := json.Marshal(payload)
+	req := httptest.NewRequest(http.MethodPost, "/admin/models/batch", bytes.NewReader(b))
+	req.Header.Set("Content-Type", "application/json")
+	rr := httptest.NewRecorder()
+	r.ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d body=%s", rr.Code, rr.Body.String())
+	}
+
+	var remaining int64
+	if err := db.Model(&model.Model{}).Count(&remaining).Error; err != nil {
+		t.Fatalf("count: %v", err)
+	}
+	if remaining != 0 {
+		t.Fatalf("expected models deleted, got %d", remaining)
+	}
+	if got := mr.HGet("meta:models", "ns.b1"); got != "" {
+		t.Fatalf("expected meta removed, got %q", got)
+	}
+}