feat: bump typescript (#14507)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Chores**
  * Upgraded TypeScript toolchain to v5.9.3 across packages and tooling.
* Removed legacy ts-node and migrated developer tooling to newer
runtimes (tsx/SWC) where applicable.
* **Documentation**
* Updated developer CLI docs and runtime behavior notes to reflect the
new loader/runtime for running TypeScript files; no changes to public
APIs or end-user behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tools/cli/package.json

@@ -47,9 +47,9 @@
     "swc-loader": "^0.2.6",
     "tailwindcss": "^4.1.17",
     "terser-webpack-plugin": "^5.3.10",
-    "ts-node": "^10.9.2",
+    "tsx": "^4.21.0",
     "typanion": "^3.14.0",
-    "typescript": "^5.5.4",
+    "typescript": "^5.9.3",
     "webpack": "^5.102.1",
     "webpack-dev-server": "^5.2.0",
     "webpack-merge": "^6.0.1"