Initial commit: MOPC platform with Docker deployment setup

Full Next.js 15 platform with tRPC, Prisma, PostgreSQL, NextAuth.
Includes production Dockerfile (multi-stage, port 7600), docker-compose
with registry-based image pull, Gitea Actions CI workflow, nginx config
for portal.monaco-opc.com, deployment scripts, and DEPLOYMENT.md guide.

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

src/app/(observer)/layout.tsx

@@ -0,0 +1,22 @@
+import { requireRole } from '@/lib/auth-redirect'
+import { ObserverNav } from '@/components/layouts/observer-nav'
+
+export default async function ObserverLayout({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  const session = await requireRole('OBSERVER')
+
+  return (
+    <div className="min-h-screen bg-background">
+      <ObserverNav
+        user={{
+          name: session.user.name,
+          email: session.user.email,
+        }}
+      />
+      <main className="container-app py-6">{children}</main>
+    </div>
+  )
+}