fix: Configure function memory via adapter (#2687)

Author: KATO-Hiro

svelte.config.js

@@ -9,12 +9,13 @@ const config = {
   preprocess: vitePreprocess(),
 
   kit: {
-    // 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.
+    // See:
+    // https://svelte.dev/docs/kit/adapter-vercel
     adapter: adapter({
-      // See: https://vercel.com/docs/edge-network/regions
+      runtime: 'nodejs22.x',
       regions: ['hnd1'], // Tokyo, Japan.
+      memory: 3008, // To avoid OOM errors on /workbooks/{slug}
+      maxDuration: 30,
     }),
     // See:
     // https://kit.svelte.dev/docs/configuration#alias

vercel.json

@@ -1,12 +1,5 @@
 {
   "git": {
     "deploymentEnabled": false
-  },
-  "functions": {
-    ".svelte-kit/**/*.js": {
-      "memory": 3008,
-      "maxDuration": 30
-    }
-  },
-  "regions": ["hnd1"]
+  }
 }