✨ feat(ui): add button component with variants

- install @radix-ui/react-slot dependency for component composition
- create Button component with multiple variants (default, destructive, outline, secondary, ghost, link)
- add size variants (default, sm, lg, icon) with responsive styling
- implement proper accessibility attributes and focus states

package.json

@@ -18,6 +18,7 @@
     "@hono/react-renderer": "^1.0.1",
     "@hono/swagger-ui": "^0.5.2",
     "@hono/zod-openapi": "^1.0.2",
+    "@radix-ui/react-slot": "^1.2.3",
     "@tanstack/react-query": "^5.83.0",
     "antd": "^5.26.6",
     "axios": "^1.11.0",

pnpm-lock.yaml

@@ -26,6 +26,9 @@ importers:
       '@hono/zod-openapi':
         specifier: ^1.0.2
         version: 1.0.2(hono@4.8.9)(zod@4.0.10)
+      '@radix-ui/react-slot':
+        specifier: ^1.2.3
+        version: 1.2.3(@types/react@19.1.8)(react@19.1.0)
       '@tanstack/react-query':
         specifier: ^5.83.0
         version: 5.83.0(react@19.1.0)
@@ -429,6 +432,24 @@ packages:
   '@polka/url@1.0.0-next.29':
     resolution: {integrity: sha512-wwQAWhWSuHaag8c4q/KN/vCoeOJYshAIvMQwD4GpSb3OiZklFfvAgmj0VCBBImRpuF/aFgIRzllXlVX93Jevww==}
 
+  '@radix-ui/react-compose-refs@1.1.2':
+    resolution: {integrity: sha512-z4eqJvfiNnFMHIIvXP3CY57y2WJs5g2v3X0zm9mEJkrkNv4rDxu+sg9Jh8EkXyeqBkB7SOcboo9dMVqhyrACIg==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-slot@1.2.3':
+    resolution: {integrity: sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
   '@rc-component/async-validator@5.0.4':
     resolution: {integrity: sha512-qgGdcVIF604M9EqjNF0hbUTz42bz/RDtxWdWuU5EQe3hi7M8ob54B6B35rOsvX5eSvIHIzT9iH1R3n+hk3CGfg==}
     engines: {node: '>=14.x'}
@@ -2205,6 +2226,19 @@ snapshots:
 
   '@polka/url@1.0.0-next.29': {}
 
+  '@radix-ui/react-compose-refs@1.1.2(@types/react@19.1.8)(react@19.1.0)':
+    dependencies:
+      react: 19.1.0
+    optionalDependencies:
+      '@types/react': 19.1.8
+
+  '@radix-ui/react-slot@1.2.3(@types/react@19.1.8)(react@19.1.0)':
+    dependencies:
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.1.8)(react@19.1.0)
+      react: 19.1.0
+    optionalDependencies:
+      '@types/react': 19.1.8
+
   '@rc-component/async-validator@5.0.4':
     dependencies:
       '@babel/runtime': 7.28.2

src/client/components/ui/button.tsx

@@ -0,0 +1,59 @@
+import * as React from "react"
+import { Slot } from "@radix-ui/react-slot"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/client/lib/utils"
+
+const buttonVariants = cva(
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+  {
+    variants: {
+      variant: {
+        default:
+          "bg-primary text-primary-foreground shadow-xs hover:bg-primary/90",
+        destructive:
+          "bg-destructive text-white shadow-xs hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
+        outline:
+          "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
+        secondary:
+          "bg-secondary text-secondary-foreground shadow-xs hover:bg-secondary/80",
+        ghost:
+          "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+      size: {
+        default: "h-9 px-4 py-2 has-[>svg]:px-3",
+        sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
+        lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
+        icon: "size-9",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Button({
+  className,
+  variant,
+  size,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean
+  }) {
+  const Comp = asChild ? Slot : "button"
+
+  return (
+    <Comp
+      data-slot="button"
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Button, buttonVariants }