test(pi): select packaged resilience target deterministically

scripts/run-pi-subagent-packaged-smoke.mjs

@@ -427,10 +427,27 @@ export async function runPackagedProductProof(options) {
       await page.getByTestId('main-layout').waitFor({ state: 'visible', timeout: 10_000 });
     }
     await page.evaluate(() => { window.location.hash = '/chat'; });
+    const resilienceTarget = page.locator('aside').getByRole('button', {
+      name: 'Resilience fault target',
+      exact: true,
+    });
+    await resilienceTarget.waitFor({ state: 'visible', timeout: 30_000 });
+    await resilienceTarget.click();
     const resilienceComposer = page.getByRole('textbox');
     await resilienceComposer.waitFor({ state: 'visible', timeout: 30_000 });
     await resilienceComposer.fill('RESILIENCE_TARGET_ACTIVE');
-    await page.getByRole('button', { name: '发送' }).click({ timeout: 30_000 });
+    try {
+      await page.getByRole('button', { name: '发送' }).click({ timeout: 30_000 });
+    } catch (error) {
+      const [bodyText, status] = await Promise.all([
+        page.locator('body').innerText().catch(() => '<unavailable>'),
+        evaluateProof(electronApplication, 'resilience.status').catch(() => null),
+      ]);
+      throw new Error(
+        `${error instanceof Error ? error.message : String(error)}; `
+        + `UI=${bodyText}; resilience=${JSON.stringify(status?.resilience ?? status)}`,
+      );
+    }
 
     const activeResilience = await waitForResilienceProof(
       electronApplication,