feat(api): add Lovart-style project and agent thread endpoints

Add canva/canda-compatible routes for lightweight project open/save and agent thread history: - POST /canva/project/queryProject, saveProject - POST /canva/agent/queryAgentLastThread, agentThreadList - GET /canda/chat-history, /canda/thread/status Canvas save now accepts a compressed SHAKKERDATA:// snapshot payload, preserves connections, and returns a SaveProject response; blank successful image nodes are backfilled from generated artifacts. Frontend designGateway adopts the new save/query flow. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-08 19:10:08 +08:00
parent ada29cee12
commit 263748af4a
27 changed files with 2045 additions and 114 deletions
@@ -122,6 +122,66 @@ func TestSaveCanvasQueuesDeletedImageAsset(t *testing.T) {
 	}
 }

+func TestSaveCanvasAcceptsCompressedSnapshotPayload(t *testing.T) {
+	ctx := context.Background()
+	repo := memory.NewProjectRepository()
+	service := NewDesignService(repo, nil, nil, nil, nil)
+	service.now = func() time.Time {
+		return time.Unix(101, 0).UTC()
+	}
+	project := design.Project{
+		ID:         "project-compressed-save",
+		Title:      "Compressed save",
+		Brief:      "brief",
+		Status:     design.StatusReady,
+		UpdatedAt:  time.Unix(100, 0).UTC(),
+		Version:    "100000",
+		SnapshotID: "snapshot-old",
+		Viewport:   design.Viewport{X: 1, Y: 2, K: 1},
+		Nodes: []design.Node{
+			{ID: "old-image", Type: design.NodeTypeImage, Title: "Old", Content: "http://localhost:19000/canvas-assets/old.png", Status: "success"},
+		},
+	}
+	if err := repo.Save(ctx, project); err != nil {
+		t.Fatal(err)
+	}
+	snapshotProject := project
+	snapshotProject.Version = project.Version
+	snapshotProject.SnapshotID = "snapshot-client"
+	snapshotProject.Viewport = design.Viewport{X: 12, Y: 34, K: 0.8}
+	snapshotProject.Nodes = []design.Node{
+		{ID: "new-image", Type: design.NodeTypeImage, Title: "New", Content: "http://localhost:19000/canvas-assets/new.png", Status: "success"},
+	}
+	snapshotProject.Connections = []design.Connection{
+		{ID: "connection-1", FromNodeID: "old-image", ToNodeID: "new-image"},
+	}
+	canvas, err := design.EncodeCanvasSnapshot(snapshotProject)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	saved, err := service.SaveCanvas(ctx, project.ID, design.Viewport{}, nil, nil, "", "", canvas)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if saved.Version != "101000" {
+		t.Fatalf("expected refreshed version, got %s", saved.Version)
+	}
+	if saved.SnapshotID != "snapshot-client" {
+		t.Fatalf("expected client snapshot id, got %s", saved.SnapshotID)
+	}
+	if saved.Viewport != snapshotProject.Viewport {
+		t.Fatalf("unexpected viewport: %#v", saved.Viewport)
+	}
+	if len(saved.Nodes) != 1 || saved.Nodes[0].ID != "new-image" {
+		t.Fatalf("unexpected saved nodes: %#v", saved.Nodes)
+	}
+	if len(saved.Connections) != 1 || saved.Connections[0].ID != "connection-1" {
+		t.Fatalf("unexpected saved connections: %#v", saved.Connections)
+	}
+}
+
 func TestSaveCanvasDoesNotDeleteImageAssetReferencedByAgentMessage(t *testing.T) {
 	ctx := context.Background()
 	repo := memory.NewProjectRepository()