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.

tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "resolveJsonModule": true,
+    "allowJs": true,
+    "checkJs": true,
+    "isolatedModules": true,
+    "moduleDetection": "force",
+    "strict": true,
+    "noEmit": true,
+    "verbatimModuleSyntax": true
+  },
+  "include": ["src/**/*.ts", "src/**/*.svelte"]
+}