Initial commit - Core Cooldown v0.1.0

Portable Windows break timer to prevent RSI and eye strain.
Tauri v2 + Svelte 5 + Tailwind CSS v4. No installer, no telemetry,
no data leaves the machine. CC0 public domain.

svelte.config.js

@@ -0,0 +1,5 @@
+import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";
+
+export default {
+  preprocess: vitePreprocess(),
+};