Add in-canvas module delete actions

app/canvas/[id]/page.tsx

@@ -10,6 +10,7 @@ import {
   ChevronDown,
   ChevronLeft,
   ChevronRight,
+  Trash2,
   Save, 
   Undo2, 
   Redo2, 
@@ -941,6 +942,7 @@ export default function CanvasEditorPage({ params }: PageProps) {
   const clearCanvas = useCanvasStore((state) => state.clearCanvas);
   const getCanvasState = useCanvasStore((state) => state.getCanvasState);
   const addNode = useCanvasStore((state) => state.addNode);
+  const deleteNode = useCanvasStore((state) => state.deleteNode);
   const addEdge = useCanvasStore((state) => state.addEdge);
   const selectNodes = useCanvasStore((state) => state.selectNodes);
   const updateNode = useCanvasStore((state) => state.updateNode);
@@ -1187,6 +1189,11 @@ export default function CanvasEditorPage({ params }: PageProps) {
       : 296
     : 0;
   const selectedWorkflowPanelLeft = isVideoMode ? videoModuleSidebarWidth + 28 : 16;
+  const handleDeleteSelectedWorkflowNode = useCallback(() => {
+    if (!selectedVideoWorkflowNode) return;
+    deleteNode(selectedVideoWorkflowNode.id);
+    toast.success(`已删除模块：${selectedVideoWorkflowDefinition?.label || "当前模块"}`);
+  }, [deleteNode, selectedVideoWorkflowDefinition?.label, selectedVideoWorkflowNode]);
   const workflowGraph = useMemo(
     () => createWorkflowGraphContext(nodes, edges),
     [edges, nodes]
@@ -7941,6 +7948,17 @@ export default function CanvasEditorPage({ params }: PageProps) {
                         )}
                       </Button>
                     ) : null}
+
+                    <Button
+                      type="button"
+                      variant="destructive"
+                      onClick={handleDeleteSelectedWorkflowNode}
+                      disabled={isAnyWorkflowExecutionRunning}
+                      className="w-full rounded-2xl shadow-sm"
+                    >
+                      <Trash2 className="mr-2 h-4 w-4" />
+                      删除当前模块
+                    </Button>
                   </div>
                 </CardContent>
               </Card>

components/canvas/nodes/TextNode.tsx

@@ -1,6 +1,7 @@
 "use client";
 
 import React, { useState, useRef, useEffect } from "react";
+import { Trash2 } from "lucide-react";
 import { useCanvasStore } from "@/store/canvas";
 import type { CanvasNode, TextNodeData } from "@/types/canvas";
 import { cn } from "@/lib/utils";
@@ -17,6 +18,7 @@ export function TextNode({ node, isSelected }: TextNodeProps) {
   const textareaRef = useRef<HTMLTextAreaElement>(null);
   
   const updateNode = useCanvasStore((state) => state.updateNode);
+  const deleteNode = useCanvasStore((state) => state.deleteNode);
 
   // 进入编辑模式时聚焦
   useEffect(() => {
@@ -119,12 +121,33 @@ export function TextNode({ node, isSelected }: TextNodeProps) {
         </div>
       )}
       
-      {/* 编辑提示 */}
-      {!isEditing && isSelected && (
-        <div className="absolute bottom-1 right-1 text-[10px] text-muted-foreground">
-          双击编辑
-        </div>
-      )}
+      {!isEditing && isSelected ? (
+        <>
+          <button
+            type="button"
+            onPointerDown={(e) => e.stopPropagation()}
+            onMouseDown={(e) => e.stopPropagation()}
+            onClick={(e) => {
+              e.stopPropagation();
+              deleteNode(node.id);
+            }}
+            className={cn(
+              "absolute right-2 top-2 flex h-8 w-8 items-center justify-center rounded-full border text-muted-foreground transition-colors hover:text-destructive",
+              data.transparent
+                ? "border-slate-200 bg-white/95 shadow-sm hover:border-destructive/30 hover:bg-red-50"
+                : "border-slate-200 bg-white hover:border-destructive/30 hover:bg-red-50"
+            )}
+            aria-label="删除文本模块"
+            title="删除文本模块"
+          >
+            <Trash2 className="h-4 w-4" />
+          </button>
+
+          <div className="absolute bottom-1 right-2 text-[10px] text-muted-foreground">
+            双击编辑
+          </div>
+        </>
+      ) : null}
     </div>
   );
 }

components/canvas/nodes/WorkflowNode.tsx

@@ -8,8 +8,10 @@ import {
   LayoutPanelTop,
   ScanSearch,
   Sparkles,
+  Trash2,
 } from "lucide-react";
 import { Badge } from "@/components/ui/badge";
+import { useCanvasStore } from "@/store/canvas";
 import { cn } from "@/lib/utils";
 import {
   getVideoWorkflowNodeDefinition,
@@ -78,6 +80,7 @@ const STATUS_LABELS = {
 } as const;
 
 export function WorkflowNode({ node, isSelected }: WorkflowNodeProps) {
+  const deleteNode = useCanvasStore((state) => state.deleteNode);
   const data = node.data as WorkflowNodeData;
   const definition = getVideoWorkflowNodeDefinition(data.templateType);
   const metadata = (data.metadata || {}) as Record<string, any>;
@@ -183,9 +186,27 @@ export function WorkflowNode({ node, isSelected }: WorkflowNodeProps) {
               </p>
             </div>
           </div>
-          <Badge variant="outline" className={badgeClassName}>
-            {STATUS_LABELS[data.status] || STATUS_LABELS.pending}
-          </Badge>
+          <div className="flex items-start gap-2">
+            {isSelected ? (
+              <button
+                type="button"
+                onPointerDown={(event) => event.stopPropagation()}
+                onMouseDown={(event) => event.stopPropagation()}
+                onClick={(event) => {
+                  event.stopPropagation();
+                  deleteNode(node.id);
+                }}
+                className="flex h-9 w-9 items-center justify-center rounded-full border border-slate-200 bg-white text-muted-foreground transition-colors hover:border-destructive/30 hover:bg-red-50 hover:text-destructive dark:border-zinc-800 dark:bg-zinc-950 dark:hover:border-destructive/40 dark:hover:bg-red-950/30"
+                aria-label="删除模块"
+                title="删除模块"
+              >
+                <Trash2 className="h-4 w-4" />
+              </button>
+            ) : null}
+            <Badge variant="outline" className={badgeClassName}>
+              {STATUS_LABELS[data.status] || STATUS_LABELS.pending}
+            </Badge>
+          </div>
         </div>
 
         <div className={sectionClassName}>