WIP: Large refactor checkpoint

- Refactored daemon client and RPC layer
- Added new client package structure in server
- Removed legacy hooks (use-daemon-request, use-session-rpc, use-websocket)
- Added use-daemon-client hook
- Added e2e test infrastructure with Playwright
- Updated agent providers and session handling
- Removed codex-sdk patches

packages/app/e2e/fixtures.ts

@@ -0,0 +1,34 @@
+import { test, expect, type Page } from '@playwright/test';
+
+const consoleEntries = new WeakMap<Page, string[]>();
+
+test.beforeEach(({ page }) => {
+  const entries: string[] = [];
+  consoleEntries.set(page, entries);
+
+  page.on('console', (message) => {
+    entries.push(`[console:${message.type()}] ${message.text()}`);
+  });
+
+  page.on('pageerror', (error) => {
+    entries.push(`[pageerror] ${error.message}`);
+  });
+});
+
+test.afterEach(async ({ page }, testInfo) => {
+  const entries = consoleEntries.get(page);
+  if (!entries || entries.length === 0) {
+    return;
+  }
+
+  if (testInfo.status === testInfo.expectedStatus) {
+    return;
+  }
+
+  await testInfo.attach('browser-console', {
+    body: entries.join('\n'),
+    contentType: 'text/plain',
+  });
+});
+
+export { test, expect };