chore: import upstream snapshot with attribution

apps/docs/public/favicon/site.webmanifest

@@ -0,0 +1,42 @@
+{
+  "name": "Sim Documentation — The AI Workspace for Teams",
+  "short_name": "Sim Docs",
+  "description": "Documentation for Sim — the open-source AI workspace where teams build, deploy, and manage AI agents. Connect 1,000+ integrations and every major LLM.",
+  "start_url": "/",
+  "scope": "/",
+  "icons": [
+    {
+      "src": "/favicon/web-app-manifest-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/favicon/web-app-manifest-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/favicon/android-chrome-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/favicon/android-chrome-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    },
+    {
+      "src": "/favicon/apple-touch-icon.png",
+      "sizes": "180x180",
+      "type": "image/png"
+    }
+  ],
+  "theme_color": "#000000",
+  "background_color": "#ffffff",
+  "display": "standalone",
+  "categories": ["productivity", "developer", "business"],
+  "lang": "en-US",
+  "dir": "ltr"
+}