fix: resolve build issues and finalize fixes

Complete Toaster and Skeleton components, add loading.tsx
Update development docs for changes and progress.

Co-authored-by: null <4804959+fnvtk@users.noreply.github.com>

components/ui/toaster.tsx

@@ -1,7 +1,9 @@
 "use client"
 
+import { useEffect } from "react"
 import {
   Toast,
+  ToastAction,
   ToastClose,
   ToastDescription,
   ToastProvider,
@@ -13,6 +15,14 @@ import { useToast } from "@/components/ui/use-toast"
 export function Toaster() {
   const { toasts } = useToast()
 
+  // 可选：在开发环境输出调试信息
+  useEffect(() => {
+    if (process.env.NODE_ENV === "development") {
+      // eslint-disable-next-line no-console
+      console.debug("[Toaster] toasts", toasts)
+    }
+  }, [toasts])
+
   return (
     <ToastProvider>
       {toasts.map(function ({ id, title, description, action, ...props }) {
@@ -32,4 +42,4 @@ export function Toaster() {
   )
 }
 
-export default Toaster
+export { ToastAction }