Initial commit: AI Coding Starter Kit v1.3.0 (Production-Ready)

Features:
- Next.js 16 + TypeScript + Tailwind CSS
- 6 Production-Ready AI Agents (Requirements → Deployment)
- Production Guides (Error Tracking, Security, Performance, Scaling)
- Feature Changelog System (Code Reuse)
- PM-Friendly Documentation
- Supabase-Ready (optional)
- shadcn/ui-Ready
- Vercel Deployment-Ready

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/app/globals.css

@@ -0,0 +1,27 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+:root {
+  --background: #ffffff;
+  --foreground: #171717;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --background: #0a0a0a;
+    --foreground: #ededed;
+  }
+}
+
+body {
+  color: var(--foreground);
+  background: var(--background);
+  font-family: Arial, Helvetica, sans-serif;
+}
+
+@layer utilities {
+  .text-balance {
+    text-wrap: balance;
+  }
+}