Add Turso/Vercel deployment configuration

- Updated database connection to support Turso auth token
- Added vercel.json with bun build configuration
- Updated environment schema for production deployment
- Added new features and components for production readiness

vercel.json

@@ -0,0 +1,14 @@
+{
+  "buildCommand": "bun run db:push && bun run build",
+  "installCommand": "bun install --frozen-lockfile",
+  "framework": "nextjs",
+  "functions": {
+    "app/api/**": {
+      "maxDuration": 30
+    },
+    "app/**": {
+      "maxDuration": 30
+    }
+  },
+  "crons": []
+}