chore: scaffold Tauri 2 + Svelte 5 workspace

Standard Tauri layout with a Svelte 5 + TypeScript + Vite frontend and a
Rust backend in src-tauri. Adds build tooling, app/window config,
capabilities, generated icons and the project README.

vite.config.ts

@@ -0,0 +1,36 @@
+import { defineConfig } from 'vite';
+import { svelte } from '@sveltejs/vite-plugin-svelte';
+
+const host = process.env.TAURI_DEV_HOST;
+
+// https://vitejs.dev/config/
+export default defineConfig(async () => ({
+  plugins: [svelte()],
+
+  // Tauri expects a fixed port and fails if it is not available.
+  clearScreen: false,
+  server: {
+    port: 1420,
+    strictPort: true,
+    host: host || false,
+    hmr: host
+      ? {
+          protocol: 'ws',
+          host,
+          port: 1421,
+        }
+      : undefined,
+    watch: {
+      // Don't watch the Rust backend; tauri handles that.
+      ignored: ['**/src-tauri/**'],
+    },
+  },
+
+  // Produce smaller, debuggable bundles depending on the Tauri build profile.
+  envPrefix: ['VITE_', 'TAURI_'],
+  build: {
+    target: process.env.TAURI_ENV_PLATFORM === 'windows' ? 'chrome105' : 'safari13',
+    minify: !process.env.TAURI_ENV_DEBUG ? 'esbuild' : false,
+    sourcemap: !!process.env.TAURI_ENV_DEBUG,
+  },
+}));