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/app/api/auth/[...nextauth]/route.ts

@@ -0,0 +1,64 @@
+import NextAuth from 'next-auth'
+import GitHub from 'next-auth/providers/github'
+import Google from 'next-auth/providers/google'
+import Credentials from 'next-auth/providers/credentials'
+
+const handler = NextAuth({
+  providers: [
+    GitHub({
+      clientId: process.env.GITHUB_ID,
+      clientSecret: process.env.GITHUB_SECRET,
+    }),
+    Google({
+      clientId: process.env.GOOGLE_ID,
+      clientSecret: process.env.GOOGLE_SECRET,
+    }),
+    Credentials({
+      name: 'Credentials',
+      credentials: {
+        email: { label: "Email", type: "email" },
+        password: { label: "Password", type: "password" }
+      },
+      async authorize(credentials) {
+        // Call backend API to verify credentials
+        const res = await fetch(`${process.env.NEXT_PUBLIC_API_URL}/api/auth/login`, {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(credentials)
+        })
+
+        const user = await res.json()
+        if (res.ok && user) {
+          return user
+        }
+        return null
+      }
+    })
+  ],
+  pages: {
+    signIn: '/auth/signin',
+  },
+  callbacks: {
+    async jwt({ token, user }) {
+      if (user) {
+        token.id = user.id
+        token.email = user.email
+        token.name = user.name
+      }
+      return token
+    },
+    async session({ session, token }) {
+      if (session.user) {
+        session.user.id = token.id
+        session.user.email = token.email
+      }
+      return session
+    }
+  },
+  session: {
+    strategy: 'jwt',
+    maxAge: 30 * 24 * 60 * 60, // 30 days
+  }
+})
+
+export { handler as GET, handler as POST }