chore: добавить SLM-каркас admin

- добавлен app entrypoint, main layout и dashboard screen\n- настроены алиасы SLM-слоёв и PostCSS для CSS Modules\n- перенесены глобальные стили в shared/styles

apps/admin/vite.config.ts

@@ -1,6 +1,22 @@
+import { fileURLToPath, URL } from "node:url"
+
 import react from "@vitejs/plugin-react"
 import { defineConfig } from "vite"
 
+const srcPath = (path: string) => fileURLToPath(new URL(`./src/${path}`, import.meta.url))
+
 export default defineConfig({
   plugins: [react()],
+  resolve: {
+    alias: {
+      app: srcPath("app"),
+      layouts: srcPath("layouts"),
+      screens: srcPath("screens"),
+      widgets: srcPath("widgets"),
+      business: srcPath("business"),
+      infra: srcPath("infra"),
+      ui: srcPath("ui"),
+      shared: srcPath("shared"),
+    },
+  },
 })