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>

.dockerignore

@@ -0,0 +1,44 @@
+# Dependencies
+node_modules
+.pnp
+.pnp.js
+
+# Testing
+coverage
+
+# Next.js
+.next
+out
+
+# Production
+build
+dist
+
+# Misc
+.DS_Store
+*.pem
+
+# Debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Local env files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# IDE
+.idea
+.vscode
+*.swp
+*.swo
+
+# Git
+.git
+.gitignore
+
+# Docker
+docker-output.txt