feat: setup frontend project with bun and dynamic data fetching

- Create new frontend project directory with Next.js 15 + React 19
- Migrate from pnpm to bun for faster package management
- Add TanStack Query + Axios for dynamic data fetching
- Create comprehensive Makefile with development commands
- Setup API layer with query hooks and error handling
- Configure environment variables and bun settings
- Add TypeScript type checking and project documentation
- Update CLAUDE.md with bun-specific development workflow

frontend/components/ui/sonner.tsx

@@ -0,0 +1,31 @@
+"use client"
+
+import { useTheme } from "next-themes"
+import { Toaster as Sonner } from "sonner"
+
+type ToasterProps = React.ComponentProps<typeof Sonner>
+
+const Toaster = ({ ...props }: ToasterProps) => {
+  const { theme = "system" } = useTheme()
+
+  return (
+    <Sonner
+      theme={theme as ToasterProps["theme"]}
+      className="toaster group"
+      toastOptions={{
+        classNames: {
+          toast:
+            "group toast group-[.toaster]:bg-background group-[.toaster]:text-foreground group-[.toaster]:border-border group-[.toaster]:shadow-lg",
+          description: "group-[.toast]:text-muted-foreground",
+          actionButton:
+            "group-[.toast]:bg-primary group-[.toast]:text-primary-foreground",
+          cancelButton:
+            "group-[.toast]:bg-muted group-[.toast]:text-muted-foreground",
+        },
+      }}
+      {...props}
+    />
+  )
+}
+
+export { Toaster }