diff --git a/apps/shared/OpenClawKit/Tools/CanvasA2UI/rolldown.config.mjs b/apps/shared/OpenClawKit/Tools/CanvasA2UI/rolldown.config.mjs
index 7466e719e83..ccf1683d565 100644
--- a/apps/shared/OpenClawKit/Tools/CanvasA2UI/rolldown.config.mjs
+++ b/apps/shared/OpenClawKit/Tools/CanvasA2UI/rolldown.config.mjs
@@ -1,7 +1,6 @@
 import path from "node:path";
 import { existsSync } from "node:fs";
 import { fileURLToPath } from "node:url";
-import { defineConfig } from "rolldown";
 
 const here = path.dirname(fileURLToPath(import.meta.url));
 const repoRoot = path.resolve(here, "../../../../..");
@@ -39,7 +38,7 @@ function resolveUiDependency(moduleId) {
   );
 }
 
-export default defineConfig({
+export default {
   input: fromHere("bootstrap.js"),
   experimental: {
     attachDebugInfo: "none",
@@ -56,7 +55,7 @@ export default defineConfig({
       "@lit-labs/signals/": resolveUiDependency("@lit-labs/signals/"),
       lit: resolveUiDependency("lit"),
       "lit/": resolveUiDependency("lit/"),
-      "signal-utils": resolveUiDependency("signal-utils"),
+      "signal-utils/": resolveUiDependency("signal-utils/"),
     },
   },
   output: {
@@ -65,4 +64,4 @@ export default defineConfig({
     codeSplitting: false,
     sourcemap: false,
   },
-});
+};
diff --git a/package.json b/package.json
index 41f7a3bd1ab..8b1660e9cee 100644
--- a/package.json
+++ b/package.json
@@ -174,6 +174,7 @@
     "json5": "^2.2.3",
     "jszip": "^3.10.1",
     "linkedom": "^0.18.12",
+    "long": "^5.3.2",
     "markdown-it": "^14.1.1",
     "node-edge-tts": "^1.2.10",
     "opusscript": "^0.0.8",
@@ -192,6 +193,8 @@
   },
   "devDependencies": {
     "@grammyjs/types": "^3.24.0",
+    "@lit-labs/signals": "^0.1.3",
+    "@lit/context": "^1.1.6",
     "@types/express": "^5.0.6",
     "@types/markdown-it": "^14.1.2",
     "@types/node": "^25.3.0",
@@ -199,9 +202,11 @@
     "@types/ws": "^8.18.1",
     "@typescript/native-preview": "7.0.0-dev.20260219.1",
     "@vitest/coverage-v8": "^4.0.18",
+    "lit": "^3.3.2",
     "oxfmt": "0.33.0",
     "oxlint": "^1.48.0",
     "oxlint-tsgolint": "^0.14.1",
+    "signal-utils": "0.21.1",
     "tsdown": "^0.20.3",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d3802bcae26..c89c7f67794 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -131,6 +131,9 @@ importers:
       linkedom:
         specifier: ^0.18.12
         version: 0.18.12
+      long:
+        specifier: ^5.3.2
+        version: 5.3.2
       markdown-it:
         specifier: ^14.1.1
         version: 14.1.1
@@ -183,6 +186,12 @@ importers:
       '@grammyjs/types':
         specifier: ^3.24.0
         version: 3.24.0
+      '@lit-labs/signals':
+        specifier: ^0.1.3
+        version: 0.1.3
+      '@lit/context':
+        specifier: ^1.1.6
+        version: 1.1.6
       '@types/express':
         specifier: ^5.0.6
         version: 5.0.6
@@ -204,6 +213,9 @@ importers:
       '@vitest/coverage-v8':
         specifier: ^4.0.18
         version: 4.0.18(@vitest/browser@4.0.18(vite@7.3.1(@types/node@25.3.0)(jiti@2.6.1)(lightningcss@1.30.2)(tsx@4.21.0)(yaml@2.8.2))(vitest@4.0.18))(vitest@4.0.18)
+      lit:
+        specifier: ^3.3.2
+        version: 3.3.2
       oxfmt:
         specifier: 0.33.0
         version: 0.33.0
@@ -213,6 +225,9 @@ importers:
       oxlint-tsgolint:
         specifier: ^0.14.1
         version: 0.14.1
+      signal-utils:
+        specifier: 0.21.1
+        version: 0.21.1(signal-polyfill@0.2.2)
       tsdown:
         specifier: ^0.20.3
         version: 0.20.3(@typescript/native-preview@7.0.0-dev.20260219.1)(typescript@5.9.3)