feat(docs): generate sitemap for docs site (#148)

* docs: add VidBee Docs suffix to all documentation page titles

Update the page title metadata generation to append "| VidBee Docs" to all documentation page titles for consistent branding across the site.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

* docs: add canonical URLs to documentation pages

Add canonical URL metadata to all documentation pages to prevent search engine duplication issues and improve SEO rankings.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

* feat(docs): add automatic sitemap

* fix(docs): align canonical base URL

* fix(docs): configure sitemap for static export

Add 'export const dynamic = "force-static"' to sitemap.ts to enable
static generation when using Next.js output: export mode. This fixes
the build error: "export const dynamic = 'force-static'/export const
revalidate not configured on route '/sitemap.xml'".

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

* chore(docs): add favicon and icon assets

Add favicons and app icons in various sizes for better browser
and platform support.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Haiku 4.5 <noreply@anthropic.com>

docs/public/ICONS.md

@@ -0,0 +1,101 @@
+# VidBee Documentation Icons
+
+This directory contains the VidBee logo in various sizes for use in the documentation site.
+
+## Source
+
+All icons are generated from the original VidBee application icon located at:
+`/Users/air15/Documents/GitHub/VidBee/build/icon.png`
+
+## Available Sizes
+
+| Filename | Size | Use Case |
+|----------|------|----------|
+| `icon.png` | 512×512 | Default/Original icon |
+| `icon-16.png` | 16×16 | Browser favicon (small) |
+| `icon-32.png` | 32×32 | Browser favicon (standard) |
+| `icon-48.png` | 48×48 | Browser favicon (large) |
+| `icon-64.png` | 64×64 | Small UI elements |
+| `icon-128.png` | 128×128 | Medium UI elements |
+| `icon-192.png` | 192×192 | PWA icon (Android) |
+| `icon-256.png` | 256×256 | Large UI elements |
+| `icon-512.png` | 512×512 | PWA splash screen, high-res displays |
+| `apple-touch-icon.png` | 180×180 | iOS/macOS home screen icon |
+| `favicon.png` | 32×32 | Standard favicon |
+
+## Usage in Next.js
+
+### In `app/layout.tsx` or `app/favicon.ico`:
+
+```tsx
+import type { Metadata } from 'next'
+
+export const metadata: Metadata = {
+  title: 'VidBee Documentation',
+  description: 'Official VidBee documentation',
+  icons: {
+    icon: [
+      { url: '/icon-16.png', sizes: '16x16', type: 'image/png' },
+      { url: '/icon-32.png', sizes: '32x32', type: 'image/png' },
+      { url: '/icon-48.png', sizes: '48x48', type: 'image/png' },
+    ],
+    apple: [
+      { url: '/apple-touch-icon.png', sizes: '180x180', type: 'image/png' },
+    ],
+  },
+}
+```
+
+### For PWA (Progressive Web App):
+
+Add to your `manifest.json` or `site.webmanifest`:
+
+```json
+{
+  "icons": [
+    {
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ]
+}
+```
+
+## Regeneration
+
+If you need to regenerate these icons from the source:
+
+```bash
+cd docs/public
+SOURCE="/Users/air15/Documents/GitHub/VidBee/build/icon.png"
+
+# Copy original
+cp $SOURCE icon-original.png
+
+# Generate sizes
+sips -z 16 16 icon-original.png --out icon-16.png
+sips -z 32 32 icon-original.png --out icon-32.png
+sips -z 48 48 icon-original.png --out icon-48.png
+sips -z 64 64 icon-original.png --out icon-64.png
+sips -z 128 128 icon-original.png --out icon-128.png
+sips -z 192 192 icon-original.png --out icon-192.png
+sips -z 256 256 icon-original.png --out icon-256.png
+sips -z 180 180 icon-original.png --out apple-touch-icon.png
+
+# Create standard copies
+cp icon-original.png icon-512.png
+cp icon-original.png icon.png
+cp icon-32.png favicon.png
+```
+
+## Notes
+
+- All icons maintain the VidBee bee/honeycomb theme
+- Icons use PNG format with transparency (RGBA)
+- Generated using macOS `sips` tool for quality consistency