Add Docker support and Gitea Actions workflow for container builds

.dockerignore

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+# Dependencies
+node_modules
+.pnp
+.pnp.js
+
+# Build outputs
+.next
+out
+build
+dist
+
+# Development files
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# IDE
+.idea
+.vscode
+*.swp
+*.swo
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Environment files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Git
+.git
+.gitignore
+
+# Docker
+Dockerfile
+docker-compose*.yml
+.dockerignore
+
+# Tests
+coverage
+.nyc_output
+*.test.ts
+*.spec.ts
+__tests__
+
+# Misc
+*.md
+!README.md
+.eslintcache
+.tsbuildinfo

.gitea/workflows/docker-build.yaml

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+name: Build and Publish Mana Loop Docker Image
+
+on:
+  push:
+    branches:
+      - master
+      - main
+  workflow_dispatch:
+    inputs:
+      image_tag:
+        description: "Custom image tag (optional)"
+        required: false
+        default: ""
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    env:
+      IMAGE_HOST: gitea.tailf367e3.ts.net
+      IMAGE_OWNER: anexim
+      IMAGE_NAME: mana-loop
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker BuildX
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Gitea Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.IMAGE_HOST }}
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Extract metadata for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_HOST }}/${{ env.IMAGE_OWNER }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=sha,prefix=
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: |
+            ${{ env.IMAGE_HOST }}/${{ env.IMAGE_OWNER }}/${{ env.IMAGE_NAME }}:latest
+            ${{ github.event.inputs.image_tag != '' && format('{0}/{1}/{2}:{3}', env.IMAGE_HOST, env.IMAGE_OWNER, env.IMAGE_NAME, github.event.inputs.image_tag) || '' }}
+            ${{ env.IMAGE_HOST }}/${{ env.IMAGE_OWNER }}/${{ env.IMAGE_NAME }}:${{ github.sha }}
+          platforms: linux/amd64
+          file: Dockerfile
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Image digest
+        run: |
+          echo "Successfully pushed image tags:"
+          echo "  - ${{ env.IMAGE_HOST }}/${{ env.IMAGE_OWNER }}/${{ env.IMAGE_NAME }}:latest"
+          echo "  - ${{ env.IMAGE_HOST }}/${{ env.IMAGE_OWNER }}/${{ env.IMAGE_NAME }}:${{ github.sha }}"
+          if [ -n "${{ github.event.inputs.image_tag }}" ]; then
+            echo "  - ${{ env.IMAGE_HOST }}/${{ env.IMAGE_OWNER }}/${{ env.IMAGE_NAME }}:${{ github.event.inputs.image_tag }}"
+          fi

Dockerfile

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+# Mana Loop - Next.js Game Docker Image
+# Multi-stage build for optimized production image
+
+# Stage 1: Dependencies
+FROM node:20-alpine AS deps
+WORKDIR /app
+
+# Install dependencies for native modules
+RUN apk add --no-cache libc6-compat
+
+# Copy package files
+COPY package.json bun.lockb* ./
+COPY prisma ./prisma/
+
+# Install bun for faster installs
+RUN npm install -g bun
+
+# Install dependencies
+RUN bun install --frozen-lockfile --production=false
+
+# Stage 2: Builder
+FROM node:20-alpine AS builder
+WORKDIR /app
+
+# Copy dependencies from deps stage
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+# Install bun for build
+RUN npm install -g bun
+
+# Set environment variables for build
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV NODE_ENV=production
+
+# Generate Prisma client
+RUN bun run db:generate
+
+# Build the application
+RUN bun run build
+
+# Stage 3: Runner
+FROM node:20-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+
+# Create non-root user for security
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+# Copy necessary files from builder
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/.next/standalone ./
+COPY --from=builder /app/.next/static ./.next/static
+COPY --from=builder /app/prisma ./prisma
+COPY --from=builder /app/node_modules/.prisma ./node_modules/.prisma
+COPY --from=builder /app/node_modules/@prisma ./node_modules/@prisma
+
+# Set correct ownership
+RUN chown -R nextjs:nodejs /app
+
+# Switch to non-root user
+USER nextjs
+
+# Expose port
+EXPOSE 3000
+
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+  CMD wget --no-verbose --tries=1 --spider http://localhost:3000 || exit 1
+
+# Start the server
+CMD ["node", "server.js"]

docker-compose.yml

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+services:
+  mana-loop:
+    image: gitea.tailf367e3.ts.net/anexim/mana-loop:latest
+    container_name: mana-loop
+    restart: unless-stopped
+    ports:
+      - "3000:3000"
+    environment:
+      - NODE_ENV=production
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3000"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s