Initial commit: TaskPool React panel

- React frontend with route-level code splitting
- Backend rebranded from Baihu to TaskPool
- DB brand migration script and local compatibility

builtin/nodejs/package.json

@@ -0,0 +1,7 @@
+{
+  "name": "taskpool",
+  "version": "1.0.0",
+  "description": "TaskPool internal helper for Node.js",
+  "main": "index.js",
+  "license": "MIT"
+}