build: Use static adapter and deploy build output

- Replace adapter-auto with @sveltejs/adapter-static and set fallback
  to '404.html' in svelte.config.js
- Add @sveltejs/adapter-static to package.json and package-lock.json
- Update GitHub Actions to upload 'build' artifact instead of 'dist'
- Enable prerendering and SSR via src/routes/+layout.js

Author: mrepol742

.github/workflows/deploy.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
-          path: "dist"
+          path: "build"
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4

package-lock.json

@@ -13,6 +13,7 @@
 	},
 	"devDependencies": {
 		"@sveltejs/adapter-auto": "^7.0.0",
+		"@sveltejs/adapter-static": "^3.0.10",
 		"@sveltejs/kit": "^2.50.2",
 		"@sveltejs/vite-plugin-svelte": "^6.2.4",
 		"@tailwindcss/vite": "^4.2.1",

package.json

@@ -0,0 +1,3 @@
+
+export const prerender = true;
+export const ssr = true;

src/routes/+layout.js

@@ -1,13 +1,15 @@
-import adapter from '@sveltejs/adapter-auto';
+import adapter from "@sveltejs/adapter-static";
 
 /** @type {import('@sveltejs/kit').Config} */
 const config = {
-	kit: {
-		// adapter-auto only supports some environments, see https://svelte.dev/docs/kit/adapter-auto for a list.
-		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.
-		// See https://svelte.dev/docs/kit/adapters for more information about adapters.
-		adapter: adapter()
-	}
+  kit: {
+    // adapter-auto only supports some environments, see https://svelte.dev/docs/kit/adapter-auto for a list.
+    // If your environment is not supported, or you settled on a specific environment, switch out the adapter.
+    // See https://svelte.dev/docs/kit/adapters for more information about adapters.
+   	adapter: adapter({
+			fallback: '404.html'
+		})
+  },
 };
 
 export default config;