Initial commit: Outlook-competitor desktop mail client

Tauri v2 (Rust backend, React/TypeScript frontend). IMAP/POP3/SMTP core,
Google OAuth (mail/calendar/contacts sync), CalDAV, local calendar with
recurrence, rules engine, contacts, tasks, unified inbox, context menus,
drag & drop, snooze, templates, and more.

vite.config.ts

@@ -0,0 +1,16 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+import tailwindcss from '@tailwindcss/vite'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [react(), tailwindcss()],
+  clearScreen: false,
+  server: {
+    port: 1420,
+    strictPort: true,
+    watch: {
+      ignored: ['**/src-tauri/**'],
+    },
+  },
+})