初始提交：姜十三论坛 Jiang13 Forum

轻量自用论坛，Go 单二进制 + React SPA 内嵌 + SQLite。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/components/ui/alert-dialog.tsx

@@ -0,0 +1,101 @@
+import * as React from 'react';
+import * as AlertDialogPrimitive from '@radix-ui/react-alert-dialog';
+import { cn } from '@/lib/utils';
+import { buttonVariants } from '@/components/ui/button';
+
+const AlertDialog = AlertDialogPrimitive.Root;
+const AlertDialogTrigger = AlertDialogPrimitive.Trigger;
+const AlertDialogPortal = AlertDialogPrimitive.Portal;
+
+const AlertDialogOverlay = React.forwardRef<
+  React.ElementRef<typeof AlertDialogPrimitive.Overlay>,
+  React.ComponentPropsWithoutRef<typeof AlertDialogPrimitive.Overlay>
+>(({ className, ...props }, ref) => (
+  <AlertDialogPrimitive.Overlay
+    className={cn(
+      'fixed inset-0 z-[110] bg-black/80 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0',
+      className,
+    )}
+    {...props}
+    ref={ref}
+  />
+));
+AlertDialogOverlay.displayName = AlertDialogPrimitive.Overlay.displayName;
+
+const AlertDialogContent = React.forwardRef<
+  React.ElementRef<typeof AlertDialogPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof AlertDialogPrimitive.Content>
+>(({ className, ...props }, ref) => (
+  <AlertDialogPortal>
+    <AlertDialogOverlay />
+    <AlertDialogPrimitive.Content
+      ref={ref}
+      className={cn(
+        'fixed left-[50%] top-[50%] z-[110] grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg',
+        className,
+      )}
+      {...props}
+    />
+  </AlertDialogPortal>
+));
+AlertDialogContent.displayName = AlertDialogPrimitive.Content.displayName;
+
+const AlertDialogHeader = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (
+  <div className={cn('flex flex-col space-y-2 text-center sm:text-left', className)} {...props} />
+);
+AlertDialogHeader.displayName = 'AlertDialogHeader';
+
+const AlertDialogFooter = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (
+  <div className={cn('flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2', className)} {...props} />
+);
+AlertDialogFooter.displayName = 'AlertDialogFooter';
+
+const AlertDialogTitle = React.forwardRef<
+  React.ElementRef<typeof AlertDialogPrimitive.Title>,
+  React.ComponentPropsWithoutRef<typeof AlertDialogPrimitive.Title>
+>(({ className, ...props }, ref) => (
+  <AlertDialogPrimitive.Title ref={ref} className={cn('text-lg font-semibold', className)} {...props} />
+));
+AlertDialogTitle.displayName = AlertDialogPrimitive.Title.displayName;
+
+const AlertDialogDescription = React.forwardRef<
+  React.ElementRef<typeof AlertDialogPrimitive.Description>,
+  React.ComponentPropsWithoutRef<typeof AlertDialogPrimitive.Description>
+>(({ className, ...props }, ref) => (
+  <AlertDialogPrimitive.Description ref={ref} className={cn('text-sm text-muted-foreground', className)} {...props} />
+));
+AlertDialogDescription.displayName = AlertDialogPrimitive.Description.displayName;
+
+const AlertDialogAction = React.forwardRef<
+  React.ElementRef<typeof AlertDialogPrimitive.Action>,
+  React.ComponentPropsWithoutRef<typeof AlertDialogPrimitive.Action>
+>(({ className, ...props }, ref) => (
+  <AlertDialogPrimitive.Action ref={ref} className={cn(buttonVariants(), className)} {...props} />
+));
+AlertDialogAction.displayName = AlertDialogPrimitive.Action.displayName;
+
+const AlertDialogCancel = React.forwardRef<
+  React.ElementRef<typeof AlertDialogPrimitive.Cancel>,
+  React.ComponentPropsWithoutRef<typeof AlertDialogPrimitive.Cancel>
+>(({ className, ...props }, ref) => (
+  <AlertDialogPrimitive.Cancel
+    ref={ref}
+    className={cn(buttonVariants({ variant: 'outline' }), 'mt-2 sm:mt-0', className)}
+    {...props}
+  />
+));
+AlertDialogCancel.displayName = AlertDialogPrimitive.Cancel.displayName;
+
+export {
+  AlertDialog,
+  AlertDialogPortal,
+  AlertDialogOverlay,
+  AlertDialogTrigger,
+  AlertDialogContent,
+  AlertDialogHeader,
+  AlertDialogFooter,
+  AlertDialogTitle,
+  AlertDialogDescription,
+  AlertDialogAction,
+  AlertDialogCancel,
+};

frontend/src/components/ui/badge.tsx

@@ -0,0 +1,32 @@
+import * as React from 'react';
+import { cva, type VariantProps } from 'class-variance-authority';
+import { cn } from '@/lib/utils';
+
+const badgeVariants = cva(
+  'inline-flex items-center rounded-md border px-2 py-0.5 text-xs font-semibold transition-colors focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2',
+  {
+    variants: {
+      variant: {
+        default: 'border-transparent bg-primary text-primary-foreground shadow',
+        secondary: 'border-transparent bg-secondary text-secondary-foreground',
+        destructive: 'border-transparent bg-destructive text-destructive-foreground shadow',
+        outline: 'text-foreground',
+        green: 'border-transparent bg-[var(--j13-green-bg)] text-[var(--j13-green)]',
+        orange: 'border-transparent bg-orange-100 text-orange-700 dark:bg-orange-950 dark:text-orange-300',
+      },
+    },
+    defaultVariants: {
+      variant: 'default',
+    },
+  },
+);
+
+export interface BadgeProps
+  extends React.HTMLAttributes<HTMLDivElement>,
+    VariantProps<typeof badgeVariants> {}
+
+function Badge({ className, variant, ...props }: BadgeProps) {
+  return <div className={cn(badgeVariants({ variant }), className)} {...props} />;
+}
+
+export { Badge, badgeVariants };

frontend/src/components/ui/button.tsx

@@ -0,0 +1,58 @@
+import * as React from 'react';
+import { Slot } from '@radix-ui/react-slot';
+import { cva, type VariantProps } from 'class-variance-authority';
+import { Loader2 } from 'lucide-react';
+import { cn } from '@/lib/utils';
+
+const buttonVariants = cva(
+  'inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
+  {
+    variants: {
+      variant: {
+        default: 'bg-primary text-primary-foreground hover:bg-primary/90',
+        destructive: 'bg-destructive text-destructive-foreground hover:bg-destructive/90',
+        outline: 'border border-input bg-background hover:bg-accent hover:text-accent-foreground',
+        secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80',
+        ghost: 'hover:bg-accent hover:text-accent-foreground',
+        link: 'text-primary underline-offset-4 hover:underline',
+      },
+      size: {
+        default: 'h-9 px-4 py-2',
+        sm: 'h-8 rounded-md px-3 text-xs',
+        lg: 'h-10 rounded-md px-8',
+        icon: 'h-9 w-9',
+      },
+    },
+    defaultVariants: {
+      variant: 'default',
+      size: 'default',
+    },
+  },
+);
+
+export interface ButtonProps
+  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
+    VariantProps<typeof buttonVariants> {
+  asChild?: boolean;
+  loading?: boolean;
+}
+
+const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
+  ({ className, variant, size, asChild = false, loading, children, disabled, ...props }, ref) => {
+    const Comp = asChild ? Slot : 'button';
+    return (
+      <Comp
+        className={cn(buttonVariants({ variant, size, className }))}
+        ref={ref}
+        disabled={disabled || loading}
+        {...props}
+      >
+        {loading ? <Loader2 className="animate-spin" /> : null}
+        {children}
+      </Comp>
+    );
+  },
+);
+Button.displayName = 'Button';
+
+export { Button, buttonVariants };

frontend/src/components/ui/dialog.tsx

@@ -0,0 +1,95 @@
+import * as React from 'react';
+import * as DialogPrimitive from '@radix-ui/react-dialog';
+import { X } from 'lucide-react';
+import { cn } from '@/lib/utils';
+
+const Dialog = DialogPrimitive.Root;
+const DialogTrigger = DialogPrimitive.Trigger;
+const DialogPortal = DialogPrimitive.Portal;
+const DialogClose = DialogPrimitive.Close;
+
+const DialogOverlay = React.forwardRef<
+  React.ElementRef<typeof DialogPrimitive.Overlay>,
+  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Overlay>
+>(({ className, ...props }, ref) => (
+  <DialogPrimitive.Overlay
+    ref={ref}
+    className={cn(
+      'fixed inset-0 z-[110] bg-black/80 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0',
+      className,
+    )}
+    {...props}
+  />
+));
+DialogOverlay.displayName = DialogPrimitive.Overlay.displayName;
+
+const DialogContent = React.forwardRef<
+  React.ElementRef<typeof DialogPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Content>
+>(({ className, children, ...props }, ref) => (
+  <DialogPortal>
+    <DialogOverlay />
+    <DialogPrimitive.Content
+      ref={ref}
+      className={cn(
+        'fixed left-[50%] top-[50%] z-[110] grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg',
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
+        <X className="h-4 w-4" />
+        <span className="sr-only">关闭</span>
+      </DialogPrimitive.Close>
+    </DialogPrimitive.Content>
+  </DialogPortal>
+));
+DialogContent.displayName = DialogPrimitive.Content.displayName;
+
+const DialogHeader = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (
+  <div className={cn('flex flex-col space-y-1.5 text-center sm:text-left', className)} {...props} />
+);
+DialogHeader.displayName = 'DialogHeader';
+
+const DialogFooter = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (
+  <div className={cn('flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2', className)} {...props} />
+);
+DialogFooter.displayName = 'DialogFooter';
+
+const DialogTitle = React.forwardRef<
+  React.ElementRef<typeof DialogPrimitive.Title>,
+  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Title>
+>(({ className, ...props }, ref) => (
+  <DialogPrimitive.Title
+    ref={ref}
+    className={cn('text-lg font-semibold leading-none tracking-tight', className)}
+    {...props}
+  />
+));
+DialogTitle.displayName = DialogPrimitive.Title.displayName;
+
+const DialogDescription = React.forwardRef<
+  React.ElementRef<typeof DialogPrimitive.Description>,
+  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Description>
+>(({ className, ...props }, ref) => (
+  <DialogPrimitive.Description
+    ref={ref}
+    className={cn('text-sm text-muted-foreground', className)}
+    {...props}
+  />
+));
+DialogDescription.displayName = DialogPrimitive.Description.displayName;
+
+export {
+  Dialog,
+  DialogPortal,
+  DialogOverlay,
+  DialogClose,
+  DialogTrigger,
+  DialogContent,
+  DialogHeader,
+  DialogFooter,
+  DialogTitle,
+  DialogDescription,
+};

frontend/src/components/ui/dropdown-menu.tsx

@@ -0,0 +1,171 @@
+import * as React from 'react';
+import * as DropdownMenuPrimitive from '@radix-ui/react-dropdown-menu';
+import { Check, ChevronRight, Circle } from 'lucide-react';
+import { cn } from '@/lib/utils';
+
+const DropdownMenu = DropdownMenuPrimitive.Root;
+const DropdownMenuTrigger = DropdownMenuPrimitive.Trigger;
+const DropdownMenuGroup = DropdownMenuPrimitive.Group;
+const DropdownMenuPortal = DropdownMenuPrimitive.Portal;
+const DropdownMenuSub = DropdownMenuPrimitive.Sub;
+const DropdownMenuRadioGroup = DropdownMenuPrimitive.RadioGroup;
+
+const DropdownMenuSubTrigger = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.SubTrigger>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.SubTrigger> & { inset?: boolean }
+>(({ className, inset, children, ...props }, ref) => (
+  <DropdownMenuPrimitive.SubTrigger
+    ref={ref}
+    className={cn(
+      'flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent data-[state=open]:bg-accent [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
+      inset && 'pl-8',
+      className,
+    )}
+    {...props}
+  >
+    {children}
+    <ChevronRight className="ml-auto" />
+  </DropdownMenuPrimitive.SubTrigger>
+));
+DropdownMenuSubTrigger.displayName = DropdownMenuPrimitive.SubTrigger.displayName;
+
+const DropdownMenuSubContent = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.SubContent>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.SubContent>
+>(({ className, ...props }, ref) => (
+  <DropdownMenuPrimitive.SubContent
+    ref={ref}
+    className={cn(
+      'z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-lg data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2',
+      className,
+    )}
+    {...props}
+  />
+));
+DropdownMenuSubContent.displayName = DropdownMenuPrimitive.SubContent.displayName;
+
+const DropdownMenuContent = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Content>
+>(({ className, sideOffset = 4, ...props }, ref) => (
+  <DropdownMenuPrimitive.Portal>
+    <DropdownMenuPrimitive.Content
+      ref={ref}
+      sideOffset={sideOffset}
+      className={cn(
+        'z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2',
+        className,
+      )}
+      {...props}
+    />
+  </DropdownMenuPrimitive.Portal>
+));
+DropdownMenuContent.displayName = DropdownMenuPrimitive.Content.displayName;
+
+const DropdownMenuItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Item> & { inset?: boolean }
+>(({ className, inset, ...props }, ref) => (
+  <DropdownMenuPrimitive.Item
+    ref={ref}
+    className={cn(
+      'relative flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&>svg]:size-4 [&>svg]:shrink-0',
+      inset && 'pl-8',
+      className,
+    )}
+    {...props}
+  />
+));
+DropdownMenuItem.displayName = DropdownMenuPrimitive.Item.displayName;
+
+const DropdownMenuCheckboxItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.CheckboxItem>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.CheckboxItem>
+>(({ className, children, checked, ...props }, ref) => (
+  <DropdownMenuPrimitive.CheckboxItem
+    ref={ref}
+    className={cn(
+      'relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
+      className,
+    )}
+    checked={checked}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <DropdownMenuPrimitive.ItemIndicator>
+        <Check className="h-4 w-4" />
+      </DropdownMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </DropdownMenuPrimitive.CheckboxItem>
+));
+DropdownMenuCheckboxItem.displayName = DropdownMenuPrimitive.CheckboxItem.displayName;
+
+const DropdownMenuRadioItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.RadioItem>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.RadioItem>
+>(({ className, children, ...props }, ref) => (
+  <DropdownMenuPrimitive.RadioItem
+    ref={ref}
+    className={cn(
+      'relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
+      className,
+    )}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <DropdownMenuPrimitive.ItemIndicator>
+        <Circle className="h-2 w-2 fill-current" />
+      </DropdownMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </DropdownMenuPrimitive.RadioItem>
+));
+DropdownMenuRadioItem.displayName = DropdownMenuPrimitive.RadioItem.displayName;
+
+const DropdownMenuLabel = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Label>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Label> & { inset?: boolean }
+>(({ className, inset, ...props }, ref) => (
+  <DropdownMenuPrimitive.Label
+    ref={ref}
+    className={cn('px-2 py-1.5 text-sm font-semibold', inset && 'pl-8', className)}
+    {...props}
+  />
+));
+DropdownMenuLabel.displayName = DropdownMenuPrimitive.Label.displayName;
+
+const DropdownMenuSeparator = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Separator>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Separator>
+>(({ className, ...props }, ref) => (
+  <DropdownMenuPrimitive.Separator
+    ref={ref}
+    className={cn('-mx-1 my-1 h-px bg-muted', className)}
+    {...props}
+  />
+));
+DropdownMenuSeparator.displayName = DropdownMenuPrimitive.Separator.displayName;
+
+const DropdownMenuShortcut = ({ className, ...props }: React.HTMLAttributes<HTMLSpanElement>) => (
+  <span className={cn('ml-auto text-xs tracking-widest opacity-60', className)} {...props} />
+);
+DropdownMenuShortcut.displayName = 'DropdownMenuShortcut';
+
+export {
+  DropdownMenu,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuGroup,
+  DropdownMenuPortal,
+  DropdownMenuSub,
+  DropdownMenuSubContent,
+  DropdownMenuSubTrigger,
+  DropdownMenuRadioGroup,
+};

frontend/src/components/ui/form.tsx

@@ -0,0 +1,136 @@
+import * as React from 'react';
+import * as LabelPrimitive from '@radix-ui/react-label';
+import { Slot } from '@radix-ui/react-slot';
+import {
+  Controller,
+  ControllerProps,
+  FieldPath,
+  FieldValues,
+  FormProvider,
+  useFormContext,
+} from 'react-hook-form';
+import { cn } from '@/lib/utils';
+import { Label } from '@/components/ui/label';
+
+const Form = FormProvider;
+
+type FormFieldContextValue<
+  TFieldValues extends FieldValues = FieldValues,
+  TName extends FieldPath<TFieldValues> = FieldPath<TFieldValues>,
+> = {
+  name: TName;
+};
+
+const FormFieldContext = React.createContext<FormFieldContextValue>({} as FormFieldContextValue);
+
+const FormField = <
+  TFieldValues extends FieldValues = FieldValues,
+  TName extends FieldPath<TFieldValues> = FieldPath<TFieldValues>,
+>({
+  ...props
+}: ControllerProps<TFieldValues, TName>) => (
+  <FormFieldContext.Provider value={{ name: props.name }}>
+    <Controller {...props} />
+  </FormFieldContext.Provider>
+);
+
+const useFormField = () => {
+  const fieldContext = React.useContext(FormFieldContext);
+  const itemContext = React.useContext(FormItemContext);
+  const { getFieldState, formState } = useFormContext();
+  const fieldState = getFieldState(fieldContext.name, formState);
+
+  if (!fieldContext) {
+    throw new Error('useFormField should be used within <FormField>');
+  }
+
+  const { id } = itemContext;
+
+  return {
+    id,
+    name: fieldContext.name,
+    formItemId: `${id}-form-item`,
+    formDescriptionId: `${id}-form-item-description`,
+    formMessageId: `${id}-form-item-message`,
+    ...fieldState,
+  };
+};
+
+type FormItemContextValue = { id: string };
+
+const FormItemContext = React.createContext<FormItemContextValue>({} as FormItemContextValue);
+
+const FormItem = React.forwardRef<HTMLDivElement, React.HTMLAttributes<HTMLDivElement>>(
+  ({ className, ...props }, ref) => {
+    const id = React.useId();
+    return (
+      <FormItemContext.Provider value={{ id }}>
+        <div ref={ref} className={cn('space-y-2', className)} {...props} />
+      </FormItemContext.Provider>
+    );
+  },
+);
+FormItem.displayName = 'FormItem';
+
+const FormLabel = React.forwardRef<
+  React.ElementRef<typeof LabelPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof LabelPrimitive.Root>
+>(({ className, ...props }, ref) => {
+  const { error, formItemId } = useFormField();
+  return (
+    <Label ref={ref} className={cn(error && 'text-destructive', className)} htmlFor={formItemId} {...props} />
+  );
+});
+FormLabel.displayName = 'FormLabel';
+
+const FormControl = React.forwardRef<
+  React.ElementRef<typeof Slot>,
+  React.ComponentPropsWithoutRef<typeof Slot>
+>(({ ...props }, ref) => {
+  const { error, formItemId, formDescriptionId, formMessageId } = useFormField();
+  return (
+    <Slot
+      ref={ref}
+      id={formItemId}
+      aria-describedby={!error ? `${formDescriptionId}` : `${formDescriptionId} ${formMessageId}`}
+      aria-invalid={!!error}
+      {...props}
+    />
+  );
+});
+FormControl.displayName = 'FormControl';
+
+const FormDescription = React.forwardRef<HTMLParagraphElement, React.HTMLAttributes<HTMLParagraphElement>>(
+  ({ className, ...props }, ref) => {
+    const { formDescriptionId } = useFormField();
+    return (
+      <p ref={ref} id={formDescriptionId} className={cn('text-[0.8rem] text-muted-foreground', className)} {...props} />
+    );
+  },
+);
+FormDescription.displayName = 'FormDescription';
+
+const FormMessage = React.forwardRef<HTMLParagraphElement, React.HTMLAttributes<HTMLParagraphElement>>(
+  ({ className, children, ...props }, ref) => {
+    const { error, formMessageId } = useFormField();
+    const body = error ? String(error?.message) : children;
+    if (!body) return null;
+    return (
+      <p ref={ref} id={formMessageId} className={cn('text-[0.8rem] font-medium text-destructive', className)} {...props}>
+        {body}
+      </p>
+    );
+  },
+);
+FormMessage.displayName = 'FormMessage';
+
+export {
+  useFormField,
+  Form,
+  FormItem,
+  FormLabel,
+  FormControl,
+  FormDescription,
+  FormMessage,
+  FormField,
+};

frontend/src/components/ui/input.tsx

@@ -0,0 +1,21 @@
+import * as React from 'react';
+import { cn } from '@/lib/utils';
+
+export interface InputProps extends React.InputHTMLAttributes<HTMLInputElement> {}
+
+const Input = React.forwardRef<HTMLInputElement, InputProps>(
+  ({ className, type, ...props }, ref) => (
+    <input
+      type={type}
+      className={cn(
+        'flex h-9 w-full rounded-md border border-input bg-background px-3 py-1 text-sm shadow-sm transition-colors file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50',
+        className,
+      )}
+      ref={ref}
+      {...props}
+    />
+  ),
+);
+Input.displayName = 'Input';
+
+export { Input };

frontend/src/components/ui/label.tsx

@@ -0,0 +1,18 @@
+import * as React from 'react';
+import * as LabelPrimitive from '@radix-ui/react-label';
+import { cva, type VariantProps } from 'class-variance-authority';
+import { cn } from '@/lib/utils';
+
+const labelVariants = cva(
+  'text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70',
+);
+
+const Label = React.forwardRef<
+  React.ElementRef<typeof LabelPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof LabelPrimitive.Root> & VariantProps<typeof labelVariants>
+>(({ className, ...props }, ref) => (
+  <LabelPrimitive.Root ref={ref} className={cn(labelVariants(), className)} {...props} />
+));
+Label.displayName = LabelPrimitive.Root.displayName;
+
+export { Label };

frontend/src/components/ui/sonner.tsx

@@ -0,0 +1,20 @@
+import { Toaster as Sonner } from 'sonner';
+import { useTheme } from '@/hooks/useTheme';
+
+/** 全局 Toast，替代 Arco Message */
+export function Toaster() {
+  const { theme } = useTheme();
+  return (
+    <Sonner
+      theme={theme}
+      position="top-center"
+      richColors
+      closeButton
+      toastOptions={{
+        classNames: {
+          toast: 'font-sans',
+        },
+      }}
+    />
+  );
+}

frontend/src/components/ui/spinner.tsx

@@ -0,0 +1,19 @@
+import { Loader2 } from 'lucide-react';
+import { cn } from '@/lib/utils';
+
+interface SpinnerProps {
+  className?: string;
+  size?: 'sm' | 'md' | 'lg';
+}
+
+const sizeMap = { sm: 'h-4 w-4', md: 'h-5 w-5', lg: 'h-8 w-8' };
+
+/** 加载指示器，替代 Arco Spin */
+export function Spinner({ className, size = 'md' }: SpinnerProps) {
+  return (
+    <Loader2
+      className={cn('animate-spin text-[var(--j13-green)]', sizeMap[size], className)}
+      aria-label="加载中"
+    />
+  );
+}

frontend/src/components/ui/switch.tsx

@@ -0,0 +1,26 @@
+import * as React from 'react';
+import * as SwitchPrimitives from '@radix-ui/react-switch';
+import { cn } from '@/lib/utils';
+
+const Switch = React.forwardRef<
+  React.ElementRef<typeof SwitchPrimitives.Root>,
+  React.ComponentPropsWithoutRef<typeof SwitchPrimitives.Root>
+>(({ className, ...props }, ref) => (
+  <SwitchPrimitives.Root
+    className={cn(
+      'peer inline-flex h-5 w-9 shrink-0 cursor-pointer items-center rounded-full border-2 border-transparent shadow-sm transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 focus-visible:ring-offset-background disabled:cursor-not-allowed disabled:opacity-50 data-[state=checked]:bg-[var(--j13-green)] data-[state=unchecked]:bg-input',
+      className,
+    )}
+    {...props}
+    ref={ref}
+  >
+    <SwitchPrimitives.Thumb
+      className={cn(
+        'pointer-events-none block h-4 w-4 rounded-full bg-background shadow-lg ring-0 transition-transform data-[state=checked]:translate-x-4 data-[state=unchecked]:translate-x-0',
+      )}
+    />
+  </SwitchPrimitives.Root>
+));
+Switch.displayName = SwitchPrimitives.Root.displayName;
+
+export { Switch };

frontend/src/components/ui/table.tsx

@@ -0,0 +1,57 @@
+import * as React from 'react';
+import { cn } from '@/lib/utils';
+
+const Table = React.forwardRef<HTMLTableElement, React.HTMLAttributes<HTMLTableElement>>(
+  ({ className, ...props }, ref) => (
+    <div className="relative w-full overflow-auto">
+      <table ref={ref} className={cn('w-full caption-bottom text-sm', className)} {...props} />
+    </div>
+  ),
+);
+Table.displayName = 'Table';
+
+const TableHeader = React.forwardRef<HTMLTableSectionElement, React.HTMLAttributes<HTMLTableSectionElement>>(
+  ({ className, ...props }, ref) => <thead ref={ref} className={cn('[&_tr]:border-b', className)} {...props} />,
+);
+TableHeader.displayName = 'TableHeader';
+
+const TableBody = React.forwardRef<HTMLTableSectionElement, React.HTMLAttributes<HTMLTableSectionElement>>(
+  ({ className, ...props }, ref) => (
+    <tbody ref={ref} className={cn('[&_tr:last-child]:border-0', className)} {...props} />
+  ),
+);
+TableBody.displayName = 'TableBody';
+
+const TableRow = React.forwardRef<HTMLTableRowElement, React.HTMLAttributes<HTMLTableRowElement>>(
+  ({ className, ...props }, ref) => (
+    <tr
+      ref={ref}
+      className={cn('border-b transition-colors hover:bg-muted/50 data-[state=selected]:bg-muted', className)}
+      {...props}
+    />
+  ),
+);
+TableRow.displayName = 'TableRow';
+
+const TableHead = React.forwardRef<HTMLTableCellElement, React.ThHTMLAttributes<HTMLTableCellElement>>(
+  ({ className, ...props }, ref) => (
+    <th
+      ref={ref}
+      className={cn(
+        'h-10 px-3 text-left align-middle font-medium text-muted-foreground [&:has([role=checkbox])]:pr-0',
+        className,
+      )}
+      {...props}
+    />
+  ),
+);
+TableHead.displayName = 'TableHead';
+
+const TableCell = React.forwardRef<HTMLTableCellElement, React.TdHTMLAttributes<HTMLTableCellElement>>(
+  ({ className, ...props }, ref) => (
+    <td ref={ref} className={cn('p-3 align-middle [&:has([role=checkbox])]:pr-0', className)} {...props} />
+  ),
+);
+TableCell.displayName = 'TableCell';
+
+export { Table, TableHeader, TableBody, TableHead, TableRow, TableCell };

frontend/src/components/ui/textarea.tsx

@@ -0,0 +1,20 @@
+import * as React from 'react';
+import { cn } from '@/lib/utils';
+
+export interface TextareaProps extends React.TextareaHTMLAttributes<HTMLTextAreaElement> {}
+
+const Textarea = React.forwardRef<HTMLTextAreaElement, TextareaProps>(
+  ({ className, ...props }, ref) => (
+    <textarea
+      className={cn(
+        'flex min-h-[60px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50',
+        className,
+      )}
+      ref={ref}
+      {...props}
+    />
+  ),
+);
+Textarea.displayName = 'Textarea';
+
+export { Textarea };