Emdash source with visual editor image upload fix

Fixes:
1. media.ts: wrap placeholder generation in try-catch
2. toolbar.ts: check r.ok, display error message in popover

docs/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "docs",
+  "private": true,
+  "type": "module",
+  "version": "0.0.1",
+  "scripts": {
+    "dev": "astro dev",
+    "start": "astro dev",
+    "build": "astro build",
+    "preview": "astro preview",
+    "astro": "astro",
+    "generate-types": "wrangler types"
+  },
+  "dependencies": {
+    "@astrojs/cloudflare": "^13.1.7",
+    "@astrojs/starlight": "^0.38.2",
+    "@astrojs/starlight-tailwind": "^5.0.0",
+    "@modelcontextprotocol/sdk": "^1.29.0",
+    "agents": "^0.12.0",
+    "astro": "^6.1.3",
+    "sharp": "^0.34.5",
+    "starlight-utils": "^1.0.0",
+    "tailwindcss": "^4.1.18",
+    "wrangler": "catalog:",
+    "zod": "^4.4.1"
+  },
+  "overrides": {
+    "vite": "^7"
+  }
+}