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

tests/unit/pi-product-artifact.test.ts

@@ -16,6 +16,7 @@ import {
   verifyBundledCodingPluginResources,
   defaultProductExecutable,
   readPackagedMarketplaceTrustSource,
+  verifyPackagedDevicePackageRuntime,
   verifyPackagedMarketplaceClientArtifact,
   validatePiArtifactMetadata,
   verifyMarketplaceClientArtifact,
@@ -326,6 +327,41 @@ describe('final Pi product artifact verification', () => {
     await expect(readPackagedMarketplaceTrustSource(appAsar)).rejects.toThrow('trust source');
   });
 
+  it('rejects the incomplete app Pi graph and requires the bundled runtime package manager', async () => {
+    const root = await mkdtemp(path.join(tmpdir(), 'makelore-device-package-runtime-asar-'));
+    roots.push(root);
+    const source = path.join(root, 'source');
+    await mkdir(path.join(source, 'dist-electron'), { recursive: true });
+    await writeFile(path.join(source, 'package.json'), JSON.stringify({ main: 'dist-electron/main.js' }));
+    await writeFile(
+      path.join(source, 'dist-electron', 'main.js'),
+      'export async function prepare() { return await import("@earendil-works/pi-coding-agent"); }',
+    );
+    const appAsar = path.join(root, 'app.asar');
+    await createAsarFixture(source, appAsar);
+    const runtimePlatform = {
+      devicePackageManager: { defaultPackageManager: 'function', settingsManager: 'function' },
+    };
+
+    await expect(verifyPackagedDevicePackageRuntime(appAsar, runtimePlatform))
+      .rejects.toThrow('incomplete app graph');
+
+    await writeFile(
+      path.join(source, 'dist-electron', 'main.js'),
+      'export const devicePackageManagerAuthority = "bundled-pi-runtime";',
+    );
+    const cleanAsar = path.join(root, 'clean.asar');
+    await createAsarFixture(source, cleanAsar);
+    await expect(verifyPackagedDevicePackageRuntime(cleanAsar, runtimePlatform)).resolves.toEqual({
+      authority: 'bundled-pi-runtime',
+      appAsarRootImport: false,
+      exports: runtimePlatform.devicePackageManager,
+      result: 'pass',
+    });
+    await expect(verifyPackagedDevicePackageRuntime(cleanAsar, { devicePackageManager: null }))
+      .rejects.toThrow('cannot load the Device Package manager');
+  });
+
   it('binds Marketplace route, Renderer, and effective markers to the package main graph', async () => {
     const root = await mkdtemp(path.join(tmpdir(), 'makelore-marketplace-contract-asar-'));
     roots.push(root);