重构主控编排与运行时预热链路，统一工作区提示词/专家调度协议并补齐 wiki 记忆注入与写回闭环。

同时收敛启动与运维脚本默认行为（含 wiki worker）、更新 Admin 可观测性与相关测试，降低首轮时延并提高运行稳定性。

Made-with: Cursor

openclaw/extensions/duckduckgo/web-search-contract-api.ts

@@ -0,0 +1,25 @@
+import {
+  createWebSearchProviderContractFields,
+  type WebSearchProviderPlugin,
+} from "openclaw/plugin-sdk/provider-web-search-contract";
+
+export function createDuckDuckGoWebSearchProvider(): WebSearchProviderPlugin {
+  return {
+    id: "duckduckgo",
+    label: "DuckDuckGo Search (experimental)",
+    hint: "Free web search fallback with no API key required",
+    requiresCredential: false,
+    envVars: [],
+    placeholder: "(no key needed)",
+    signupUrl: "https://duckduckgo.com/",
+    docsUrl: "https://docs.openclaw.ai/tools/web",
+    autoDetectOrder: 100,
+    credentialPath: "",
+    ...createWebSearchProviderContractFields({
+      credentialPath: "",
+      searchCredential: { type: "scoped", scopeId: "duckduckgo" },
+      selectionPluginId: "duckduckgo",
+    }),
+    createTool: () => null,
+  };
+}