Increase body size limit

svelte.config.js

@@ -11,7 +11,12 @@ const config = {
 		// adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
 		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.
 		// See https://kit.svelte.dev/docs/adapters for more information about adapters.
-		adapter: adapter(),
+		adapter: adapter({
+			// Increase body size limit to 10MB for file uploads
+			bodyParser: {
+				sizeLimit: 10485760 // 10MB in bytes
+			}
+		}),
 
 		csrf: {
 			checkOrigin: false