Refactor documentation structure and dependencies for migration to Fumadocs

- Updated `.gitignore` to include new build and generated content directories.
- Removed outdated Mintlify configuration files and documentation.
- Introduced new `MIGRATION.md` to outline the transition from Mintlify to Fumadocs.
- Added `mdx-components.tsx` for MDX component configuration and compatibility.
- Updated `package.json` and `next.config.mjs` for new dependencies and Next.js configuration.
- Created `source.config.ts` for content source configuration.
- Added OpenAPI specification in `openapi.json` for API documentation.
- Removed legacy files and adjusted project structure to align with Fumadocs conventions.

docs/components/api-page.client.tsx

@@ -0,0 +1,6 @@
+'use client';
+import { defineClientConfig } from 'fumadocs-openapi/ui/client';
+
+export default defineClientConfig({
+  // Client-side configuration for API playground
+});

docs/components/api-page.tsx

@@ -0,0 +1,7 @@
+import { openapi } from '@/lib/openapi';
+import { createAPIPage } from 'fumadocs-openapi/ui';
+import client from './api-page.client';
+
+export const APIPage = createAPIPage(openapi, {
+  client,
+});

docs/components/mintlify-compat.tsx

@@ -0,0 +1,124 @@
+/**
+ * Compatibility components for Mintlify -> Fumadocs migration
+ * Maps Mintlify components to Fumadocs equivalents
+ */
+
+import { Card, Cards } from 'fumadocs-ui/components/card';
+import { Step, Steps } from 'fumadocs-ui/components/steps';
+import { Callout } from 'fumadocs-ui/components/callout';
+import type { ReactNode } from 'react';
+import * as Icons from 'lucide-react';
+
+// Icon name to Lucide icon mapping
+const iconMap: Record<string, typeof Icons.Mic> = {
+  microphone: Icons.Mic,
+  film: Icons.Film,
+  code: Icons.Code,
+  shield: Icons.Shield,
+  download: Icons.Download,
+  rocket: Icons.Rocket,
+  apple: Icons.Apple,
+  windows: Icons.Monitor, // Windows doesn't exist, using Monitor instead
+  server: Icons.Server,
+  user: Icons.User,
+  waveform: Icons.Waves, // Waveform doesn't exist, using Waves instead
+};
+
+function getIcon(iconName?: string) {
+  if (!iconName) return undefined;
+  const IconComponent = iconMap[iconName.toLowerCase()];
+  return IconComponent ? <IconComponent className="w-5 h-5" /> : undefined;
+}
+
+// Frame -> Simple image wrapper (Fumadocs images are zoomable by default)
+export function Frame({ children }: { children: ReactNode }) {
+  return <div className="my-6">{children}</div>;
+}
+
+// CardGroup -> Cards (Fumadocs component)
+export function CardGroup({ 
+  cols, 
+  children 
+}: { 
+  cols?: number; 
+  children: ReactNode;
+}) {
+  return <Cards style={{ gridTemplateColumns: cols ? `repeat(${cols}, 1fr)` : undefined }}>{children}</Cards>;
+}
+
+// Card -> Card (maps icon string to Lucide icon)
+export function MintlifyCard({
+  title,
+  icon,
+  href,
+  children
+}: {
+  title?: string;
+  icon?: string;
+  href?: string;
+  children: ReactNode;
+}) {
+  const iconElement = getIcon(icon);
+
+  // Extract text content from children to avoid nested <p> tags
+  // fumadocs Card component wraps description in a <p>, so we need plain content
+  const description = typeof children === 'string'
+    ? children
+    : undefined;
+
+  return (
+    <Card
+      title={title || ''}
+      href={href}
+      icon={iconElement}
+      description={description}
+    />
+  );
+}
+
+// Steps and Step are direct mappings
+export { Steps, Step };
+
+// Callout variants - Note: Fumadocs doesn't have "note" type, using "info"
+export function Tip({ children }: { children: ReactNode }) {
+  return <Callout type="info">{children}</Callout>;
+}
+
+export function Note({ children }: { children: ReactNode }) {
+  return <Callout type="info">{children}</Callout>;
+}
+
+export function Warning({ children }: { children: ReactNode }) {
+  return <Callout type="warn">{children}</Callout>;
+}
+
+export function Info({ children }: { children: ReactNode }) {
+  return <Callout type="info">{children}</Callout>;
+}
+
+export function Danger({ children }: { children: ReactNode }) {
+  return <Callout type="error">{children}</Callout>;
+}
+
+// Accordion -> HTML details/summary (Fumadocs doesn't have built-in accordion)
+export function AccordionGroup({ children }: { children: ReactNode }) {
+  return <div className="my-6 space-y-2">{children}</div>;
+}
+
+export function Accordion({ 
+  title, 
+  children 
+}: { 
+  title: string;
+  children: ReactNode;
+}) {
+  return (
+    <details className="group border rounded-lg p-4">
+      <summary className="cursor-pointer font-semibold list-none">
+        <span className="group-open:rotate-90 transition-transform inline-block mr-2">▶</span>
+        {title}
+      </summary>
+      <div className="mt-4 pl-6">{children}</div>
+    </details>
+  );
+}