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/vitest.config.ts

@@ -4,6 +4,7 @@ import path from "path";
 export default defineConfig({
   test: {
     environment: "node",
+    exclude: ["e2e/**"],
     /**
      * Expo pulls in native tooling (xcode, etc.) that executes files relying on `process.send`.
      * Vitest's default worker pool uses worker_threads, which intentionally stub that API and