docs: add local search, edit links, sitemap, lastUpdated, SWA 404 page

- VitePress built-in local search (Ctrl+K)
- "Edit this page on GitHub" links for community contributions
- sitemap.xml generated for docs.lykos.ai
- lastUpdated page footers (deploy job now checks out full history)
- staticwebapp.config.json rewrites Azure SWA 404s to the VitePress 404 page

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: mohnjiles

.github/workflows/docs-site.yml

@@ -23,6 +23,9 @@ jobs:
       contents: read
     steps:
       - uses: actions/checkout@v4
+        with:
+          # Full history so VitePress lastUpdated timestamps are accurate
+          fetch-depth: 0
 
       - name: Set up Node.js
         uses: actions/setup-node@v4

docs/.vitepress/config.mts

@@ -16,9 +16,25 @@ export default defineConfig({
 
   appearance: 'dark',
 
+  // Requires full git history at build time (fetch-depth: 0 in the deploy job).
+  lastUpdated: true,
+
+  sitemap: {
+    hostname: 'https://docs.lykos.ai'
+  },
+
   themeConfig: {
     outline: 'deep',
 
+    search: {
+      provider: 'local'
+    },
+
+    editLink: {
+      pattern: 'https://github.com/LykosAI/StabilityMatrix/edit/main/docs/:path',
+      text: 'Edit this page on GitHub'
+    },
+
     nav: [
       { text: 'Home', link: '/' },
       { text: 'Getting Started', link: '/getting-started/overview' },

docs/public/staticwebapp.config.json

@@ -0,0 +1,7 @@
+{
+  "responseOverrides": {
+    "404": {
+      "rewrite": "/404.html"
+    }
+  }
+}