fix(packages): load bundled Pi runtime for local installs

electron/coding-runtime/pi/extension-host.ts

@@ -17,6 +17,7 @@ import type { PiProductTools } from './product-tools';
 import type { CodingPluginToolDefinition } from '../../../shared/coding-plugins';
 import type { PiSkillEntry } from './resource-loader';
 import type { EffectivePluginSnapshot } from '../../coding-plugins/effective-resolver';
+import { DevicePackageError } from '../../coding-packages/device-package-manager';
 
 const MAX_REQUEST_BYTES = 64 * 1024;
 const PRODUCT_TOOL_NAME_PATTERN = /^[A-Za-z][A-Za-z0-9._:-]{0,63}$/u;
@@ -483,7 +484,14 @@ export class PiManagedExtensionHost {
         response.removeListener('close', cancel);
         record.waiters.delete(value.resourceId);
       }
-    } catch {
+    } catch (error) {
+      if (!response.writableEnded && error instanceof DevicePackageError) {
+        this.respond(response, 400, {
+          code: error.code,
+          error: error.message.slice(0, 512),
+        });
+        return;
+      }
       if (!response.writableEnded) this.respond(response, 400, { error: 'Bridge request failed' });
     }
   }