feat(agent): 创作能力 - 接通专业节点发现与插件执行基础

web/src/lib/canvas/canvas-agent-context.ts

@@ -1,5 +1,7 @@
 import { hashCanvasAgentSnapshot, type CanvasAgentOp, type CanvasAgentSnapshot } from "./canvas-agent-ops";
 import { CanvasNodeType, type CanvasNodeData } from "@/types/canvas";
+import { getNodeDefinition } from "./node-registry";
+import { isPluginEffectivelyEnabled } from "@/stores/use-plugin-store";
 
 export type CanvasAgentResource = {
     nodeId: string;
@@ -151,6 +153,8 @@ export function validateCanvasAgentOps(snapshot: CanvasAgentSnapshot, ops: Canva
     };
     ops.forEach((op, index) => {
         if (op.type === "add_node") {
+            const definition = getNodeDefinition(op.nodeType || CanvasNodeType.Text);
+            if (!definition || (definition.plugin && !isPluginEffectivelyEnabled(definition.plugin.pluginId))) issues.push({ index, severity: "error", message: "节点未注册或插件不可用，请重新发现能力" });
             validateNodeNumbers(issues, index, op as unknown as Record<string, unknown>);
             if (op.id && liveNodeIds.has(op.id)) issues.push({ index, severity: "error", message: `新增节点 id「${op.id}」重复` });
             if (op.id) liveNodeIds.add(op.id);