Initial svelte migration

package.json

@@ -5,16 +5,23 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
-    "build": "tsc && vite build",
-    "preview": "vite preview"
+    "build": "vite build",
+    "preview": "vite preview",
+    "check": "svelte-check --tsconfig ./tsconfig.app.json && tsc -p tsconfig.node.json"
   },
   "devDependencies": {
-    "@types/bun": "^1.2.23",
+    "@sveltejs/vite-plugin-svelte": "^6.2.1",
+    "@tsconfig/svelte": "^5.0.5",
+    "@types/d3": "^7.4.3",
+    "@types/node": "^24.6.0",
+    "@types/reveal.js": "^5.2.0",
+    "svelte": "^5.39.6",
+    "svelte-check": "^4.3.2",
     "typescript": "~5.9.3",
     "vite": "^7.1.7"
   },
   "dependencies": {
-    "@types/reveal.js": "^5.2.0",
+    "d3": "^7.9.0",
     "reveal.js": "^5.2.1"
   }
 }