feat: Integrate Mantine UI library, establish a theme provider, and refactor core UI components.

packages/ui/package.json

@@ -3,9 +3,11 @@
   "version": "0.0.0",
   "exports": {
     "./theme.css": "./src/theme.css",
-    "./components/*": "./src/components/*.tsx",
+    "./components/system-pages/*": "./src/components/system-pages/*.tsx",
+    "./components/*": "./src/components/*.ts",
     "./hooks/*": "./src/hooks/*.ts",
-    "./utils/*": "./src/utils/*.ts"
+    "./utils/*": "./src/utils/*.ts",
+    "./provider": "./src/provider/index.ts"
   },
   "license": "MIT",
   "scripts": {
@@ -18,6 +20,8 @@
     "react-dom": "^19.2.3"
   },
   "dependencies": {
+    "@mantine/core": "^8.3.15",
+    "@mantine/hooks": "^8.3.15",
     "@repo/utils": "workspace:*",
     "dayjs": "^1.11.19",
     "tailwind-merge": "^3.4.0",