fix(canvas): 添加节点菜单 - 统一命令入口并修复文字溢出与分区拥挤

web/src/pages/canvas/canvas-project-context-menu.tsx

@@ -14,6 +14,7 @@ type CanvasProjectContextMenuProps = {
     screenToCanvas: (clientX: number, clientY: number) => Position;
     onClose: () => void;
     onAddNode: (type: CanvasNodeType, position: Position) => void;
+    onChooseStyle: () => void;
     onOpenDirector: (position?: Position) => void;
     onUpload: (nodeId: string | undefined, position: Position) => void;
     onOpenAssets: (position: Position) => void;
@@ -52,6 +53,7 @@ export function CanvasProjectContextMenu({ menu, node, screenToCanvas, ...props
             onAddNode={(type) => {
                 if (menu.type === "canvas") props.onAddNode(type, menu.position);
             }}
+            onChooseStyle={props.onChooseStyle}
             onOpenDirector={props.onOpenDirector}
             onUpload={() => props.onUpload(menu.type === "node" ? menu.nodeId : undefined, menuPosition())}
             onOpenAssets={() => props.onOpenAssets(menuPosition())}

web/src/pages/canvas/project.tsx

@@ -1662,6 +1662,7 @@ function InfiniteCanvasPage() {
                     screenToCanvas={screenToCanvas}
                     onClose={() => setContextMenu(null)}
                     onAddNode={(type, position) => createNode(type, position)}
+                    onChooseStyle={() => setStylePickerOpen(true)}
                     onOpenDirector={createDirectorShot}
                     onUpload={(nodeId, position) => handleUploadRequest(nodeId, position)}
                     onOpenAssets={openAssetsAtPosition}