feat: initial implementation of Oriana uptime monitor

Implements a full-stack uptime monitoring application with:
- HTTPS, HTTPS keyword, HTTPS status, port, and MongoDB Atlas monitor types
- Cron-based monitoring engine with webhook notifications on status changes
- Discord OAuth2 admin panel (single-owner)
- Public status page with category grouping and failure reason display
- Admin dashboard with sortable monitors table and detailed failure info
- SQLite persistence with migration support

client/vite.config.ts

@@ -0,0 +1,12 @@
+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react";
+
+export default defineConfig({
+  plugins: [react()],
+  server: {
+    proxy: {
+      "/api": "http://localhost:3000",
+      "/auth": "http://localhost:3000",
+    },
+  },
+});