fix: use new_sqlite_classes for free-plan Durable Objects and gitignore .wrangler

.gitignore

@@ -107,6 +107,9 @@ dist
 # Docusaurus cache and generated files
 .docusaurus
 
+# Wrangler (Cloudflare Workers CLI)
+.wrangler/
+
 # Serverless directories
 .serverless/
 

wrangler.json

@@ -16,7 +16,7 @@
   "migrations": [
     {
       "tag": "v1",
-      "new_classes": ["CanvasRoom"]
+      "new_sqlite_classes": ["CanvasRoom"]
     }
   ]
 }