refactor: migrate to monorepo structure with Docker, PocketBase, and e2e tests

- Reorganize into apps/, packages/, docs/, e2e/, pocketbase/ directories
- Add Dockerfiles for web, worker, and PocketBase services
- Add docker-compose.yml for local orchestration
- Add turbo.json for monorepo task management
- Add Playwright e2e test infrastructure
- Add PocketBase backend with migrations
- Remove Vite/Next.js/ESLint/PostCSS config files
- Update package.json with workspace dependencies
- Add .env.example and .dockerignore

apps/web/components/ui/toggle-group.tsx

@@ -0,0 +1,58 @@
+'use client';
+
+import * as React from 'react';
+import * as ToggleGroupPrimitive from '@radix-ui/react-toggle-group';
+
+import { type VariantProps } from 'class-variance-authority';
+
+import { cn } from '@/lib/utils';
+import { toggleVariants } from '@/components/ui/toggle';
+
+const ToggleGroupContext = React.createContext<VariantProps<typeof toggleVariants>>({
+  size: 'default',
+  variant: 'default',
+});
+
+const ToggleGroup = React.forwardRef<
+  React.ComponentRef<typeof ToggleGroupPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof ToggleGroupPrimitive.Root> &
+    VariantProps<typeof toggleVariants>
+>(({ className, variant, size, children, ...props }, ref) => (
+  <ToggleGroupPrimitive.Root
+    ref={ref}
+    className={cn('flex items-center justify-center gap-1', className)}
+    {...props}
+  >
+    <ToggleGroupContext.Provider value={{ variant, size }}>{children}</ToggleGroupContext.Provider>
+  </ToggleGroupPrimitive.Root>
+));
+
+ToggleGroup.displayName = ToggleGroupPrimitive.Root.displayName;
+
+const ToggleGroupItem = React.forwardRef<
+  React.ComponentRef<typeof ToggleGroupPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof ToggleGroupPrimitive.Item> &
+    VariantProps<typeof toggleVariants>
+>(({ className, children, variant, size, ...props }, ref) => {
+  const context = React.useContext(ToggleGroupContext);
+
+  return (
+    <ToggleGroupPrimitive.Item
+      ref={ref}
+      className={cn(
+        toggleVariants({
+          variant: context.variant || variant,
+          size: context.size || size,
+        }),
+        className
+      )}
+      {...props}
+    >
+      {children}
+    </ToggleGroupPrimitive.Item>
+  );
+});
+
+ToggleGroupItem.displayName = ToggleGroupPrimitive.Item.displayName;
+
+export { ToggleGroup, ToggleGroupItem };