refactor(web): migrate from Vike+React to SvelteKit

- Replace Vike+React with SvelteKit for simpler SSR and routing
- Update WASM build output paths from public/ to static/
- Add wasm-opt integration for WASM size optimization
- Streamline tooling: remove ESLint, Prettier configs (use defaults)
- Move build.rs to pacman-server/ (frontend no longer needs it)

web/tsconfig.json

@@ -1,33 +1,20 @@
 {
-  "compilerOptions": {
-    "strict": true,
-    "esModuleInterop": true,
-    "forceConsistentCasingInFileNames": true,
-    "resolveJsonModule": true,
-    "skipLibCheck": true,
-    "sourceMap": true,
-    "module": "ESNext",
-    "noEmit": true,
-    "moduleResolution": "Bundler",
-    "target": "ES2022",
-    "lib": [
-      "DOM",
-      "DOM.Iterable",
-      "ESNext"
-    ],
-    "types": [
-      "vite/client",
-      "vike-react",
-      "node"
-    ],
-    "jsx": "react-jsx",
-    "jsxImportSource": "react",
-    "baseUrl": ".",
-    "paths": {
-      "@/*": ["./*"]
-    }
-  },
-  "exclude": [
-    "dist"
-  ]
+	"extends": "./.svelte-kit/tsconfig.json",
+	"compilerOptions": {
+		"rewriteRelativeImportExtensions": true,
+		"allowJs": true,
+		"checkJs": true,
+		"esModuleInterop": true,
+		"forceConsistentCasingInFileNames": true,
+		"resolveJsonModule": true,
+		"skipLibCheck": true,
+		"sourceMap": true,
+		"strict": true,
+		"moduleResolution": "bundler"
+	}
+	// Path aliases are handled by https://svelte.dev/docs/kit/configuration#alias
+	// except $lib which is handled by https://svelte.dev/docs/kit/configuration#files
+	//
+	// To make changes to top-level options such as include and exclude, we recommend extending
+	// the generated config; see https://svelte.dev/docs/kit/configuration#typescript
 }