feat: add Docker deployment support

.dockerignore

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+# Dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Development
+.git/
+.github/
+.vscode/
+.idea/
+
+# Build outputs
+dist/
+build/
+
+# Environment files
+.env.local
+.env.development
+.env.test
+
+# Testing
+coverage/
+.nyc_output/
+
+# Misc
+*.log
+*.swp
+*.swo
+*~
+.DS_Store
+Thumbs.db
+
+# Documentation
+*.md
+!README.md
+
+# CI/CD
+.github/
+.gitlab-ci.yml
+.travis.yml
+
+# Docker
+#Dockerfile*
+#docker-compose*
+#.dockerignore

Dockerfile

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+FROM node:20-alpine AS builder
+
+# Install build dependencies
+RUN apk add --no-cache \
+    python3 \
+    make \
+    g++ \
+    git
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install all dependencies (including dev dependencies for building)
+RUN npm ci && \
+    npm cache clean --force
+
+# Copy source code
+COPY . .
+
+# Build frontend
+RUN npm run build
+
+# =============================================================================
+# Production stage
+# =============================================================================
+FROM node:20-alpine
+
+# Install runtime dependencies
+RUN apk add --no-cache \
+    python3 \
+    make \
+    g++ \
+    git \
+    ca-certificates \
+    tzdata
+
+WORKDIR /app
+
+# Copy package files and install production dependencies
+COPY package*.json ./
+RUN npm ci --only=production && \
+    npm cache clean --force
+
+# Copy built files from builder
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/server ./server
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/index.html ./index.html
+
+# Create necessary directories with proper permissions
+RUN mkdir -p /data /config && \
+    chown -R node:node /app /data /config
+
+# Switch to node user (uid/gid 1000)
+USER node
+
+# Environment variables
+ENV NODE_ENV=production \
+    PORT=3001 \
+    DATABASE_PATH=/data/auth.db
+
+# Expose port
+EXPOSE 3001
+
+# Start server
+CMD ["node", "server/index.js"]

docker-compose.yml

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+networks:
+  claudecodeui:
+    name: claudecodeui
+  public:
+    external: true
+
+services:
+  claudecodeui:
+    build:
+      context: .
+      dockerfile: Dockerfile
+        # image: claudecodeui:latest
+    restart: unless-stopped
+    ports:
+      - "${EXTERNAL_PORT:-3002}:3001"
+    env_file:
+      - path: ./.env
+        required: true
+    environment:
+      - PORT=${PORT:-3001}
+      - DATABASE_PATH=${DATABASE_PATH:-/data/auth.db}
+      - CONTEXT_WINDOW=${CONTEXT_WINDOW:-160000}
+      - CLAUDE_CLI_PATH=${CLAUDE_CLI_PATH:-claude}
+      - NODE_ENV=production
+    volumes:
+      # sadly these paths must be hardcoded (no we cannot use $HOME) because claude code uses
+      # hardcoded absolute paths in the ../node/.claude file and Docker must have identical full ones
+      #- /home/faris/Projects/:/home/faris/Projects/
+      - ${HOME}/Projects/:${HOME}/Projects/
+#      - /mnt/d2/Projects/:/mnt/d2/Projects/
+      - ${HOME}/.claude:/home/node/.claude:rw
+      - claudecodeui-data:/data
+      - claudecodeui-config:/config
+    networks:
+      - claudecodeui
+      - public
+    healthcheck:
+      test: ["CMD", "node", "-e", "require('http').get('http://localhost:3001/api/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+volumes:
+  claudecodeui-data:
+    name: claudecodeui_data
+  claudecodeui-config:
+    name: claudecodeui_config
+