feat: Complete Fiscal Clone deployment package

- SEC filings extraction (10-K, 10-Q, 8-K)
- Portfolio analytics with real-time prices
- Watchlist management
- NextAuth.js authentication
- OpenClaw AI integration
- PostgreSQL database with auto P&L calculations
- Elysia.js backend (Bun runtime)
- Next.js 14 frontend (TailwindCSS + Recharts)
- Production-ready Docker configurations

frontend/lib/utils.ts

@@ -0,0 +1,6 @@
+import { type ClassValue, clsx } from 'clsx'
+import { twMerge } from 'tailwind-merge'
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}