fix: allow docker builds to skip missing a2ui assets

Dockerfile

@@ -24,7 +24,7 @@ COPY scripts ./scripts
 RUN pnpm install --frozen-lockfile
 
 COPY . .
-RUN pnpm build
+RUN CLAWDBOT_A2UI_SKIP_MISSING=1 pnpm build
 # Force pnpm for UI build (Bun may fail on ARM/Synology architectures)
 ENV CLAWDBOT_PREFER_PNPM=1
 RUN pnpm ui:install

scripts/canvas-a2ui-copy.ts

@@ -19,12 +19,17 @@ export async function copyA2uiAssets({
   srcDir: string;
   outDir: string;
 }) {
+  const skipMissing = process.env.CLAWDBOT_A2UI_SKIP_MISSING === "1";
   try {
     await fs.stat(path.join(srcDir, "index.html"));
     await fs.stat(path.join(srcDir, "a2ui.bundle.js"));
   } catch (err) {
     const message =
       'Missing A2UI bundle assets. Run "pnpm canvas:a2ui:bundle" and retry.';
+    if (skipMissing) {
+      console.warn(`${message} Skipping copy (CLAWDBOT_A2UI_SKIP_MISSING=1).`);
+      return;
+    }
     throw new Error(message, { cause: err });
   }
   await fs.mkdir(path.dirname(outDir), { recursive: true });