Json Render Shadcn

# @json-render/shadcn

Pre-built shadcn/ui component definitions and implementations for json-render. Provides 36 components built on Radix UI + Tailwind CSS.

## Two Entry Points

| Entry Point | Exports | Use For |
|-------------|---------|---------|
| `@json-render/shadcn/catalog` | `shadcnComponentDefinitions` | Catalog schemas (no React dependency, safe for server) |
| `@json-render/shadcn` | `shadcnComponents` | React implementations |

## Usage Pattern

Pick the components you need from the standard definitions. Do not spread all definitions -- explicitly select what your app uses:

```typescript
import { defineCatalog } from "@json-render/core";
import { schema } from "@json-render/react/schema";
import { shadcnComponentDefinitions } from "@json-render/shadcn/catalog";
import { defineRegistry } from "@json-render/react";
import { shadcnComponents } from "@json-render/shadcn";

// Catalog: pick definitions
const catalog = defineCatalog(schema, {
  components: {
    Card: shadcnComponentDefinitions.Card,
    Stack: shadcnComponentDefinitions.Stack,
    Heading: shadcnComponentDefinitions.Heading,
    Button: shadcnComponentDefinitions.Button,
    Input: shadcnComponentDefinitions.Input,
  },
  actions: {},
});

// Registry: pick matching implementations
const { registry } = defineRegistry(catalog, {
  components: {
    Card: shadcnComponents.Card,
    Stack: shadcnComponents.Stack,
    Heading: shadcnComponents.Heading,
    Button: shadcnComponents.Button,
    Input: shadcnComponents.Input,
  },
});
```

> State actions (`setState`, `pushState`, `removeState`) are built into the React schema and handled by `ActionProvider` automatically. No need to declare them.

## Extending with Custom Components

Add custom components alongside standard ones:

```typescript
const catalog = defineCatalog(schema, {
  components: {
    // Standard
    Card: shadcnComponentDefinitions.Card,
    Stack: shadcnComponentDefinitions.Stack,

    // Custom
    Metric: {
      props: z.object({
        label: z.string(),
        value: z.string(),
        trend: z.enum(["up", "down", "neutral"]).nullable(),
      }),
      description: "KPI metric display",
    },
  },
  actions: {},
});

const { registry } = defineRegistry(catalog, {
  components: {
    Card: shadcnComponents.Card,
    Stack: shadcnComponents.Stack,
    Metric: ({ props }) => <div>{props.label}: {props.value}</div>,
  },
});
```

## Available Components

### Layout
- **Card** - Container with optional title, description, maxWidth, centered
- **Stack** - Flex container with direction, gap, align, justify
- **Grid** - Grid layout with columns (number) and gap
- **Separator** - Visual divider with orientation

### Navigation
- **Tabs** - Tabbed navigation with tabs array, defaultValue, value
- **Accordion** - Collapsible sections with items array and type (single/multiple)
- **Collapsible** - Single collapsible section with title
- **Pagination** - Page navigation with totalPages and page

### Overlay
- **Dialog** - Modal dialog with title, description, openPath
- **Drawer** - Bottom drawer with title, description, openPath
- **Tooltip** - Hover tooltip with content and text
- **Popover** - Click-triggered popover with trigger and content
- **DropdownMenu** - Dropdown with label and items array

### Content
- **Heading** - Heading text with level (h1-h4)
- **Text** - Paragraph with variant (body, caption, muted, lead, code)
- **Image** - Image with alt, width, height
- **Avatar** - User avatar with src, name, size
- **Badge** - Status badge with text and variant (default, secondary, destructive, outline)
- **Alert** - Alert banner with title, message, type (success, warning, info, error)
- **Carousel** - Scrollable carousel with items array
-