refactor: consolidate Dockerfiles into single multi-stage build

- Create unified Dockerfile with multi-stage builds (base, server, ui targets)
- Centralize lib package.json COPYs in shared base stage (DRY)
- Add Claude CLI installation for Docker authentication support
- Remove duplicate apps/server/Dockerfile and apps/ui/Dockerfile
- Update docker-compose.yml to use target: parameter
- Add docker-compose.override.yml to .gitignore

Build commands:
  docker build --target server -t automaker-server .
  docker build --target ui -t automaker-ui .
  docker-compose build && docker-compose up -d

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

apps/server/Dockerfile

@@ -1,75 +0,0 @@
-# Automaker Backend Server
-# Multi-stage build for minimal production image
-
-# Build stage
-FROM node:20-alpine AS builder
-
-# Install build dependencies for native modules (node-pty)
-RUN apk add --no-cache python3 make g++
-
-WORKDIR /app
-
-# Copy package files for all workspaces
-COPY package*.json ./
-COPY apps/server/package*.json ./apps/server/
-COPY libs/types/package*.json ./libs/types/
-COPY libs/utils/package*.json ./libs/utils/
-COPY libs/prompts/package*.json ./libs/prompts/
-COPY libs/platform/package*.json ./libs/platform/
-COPY libs/model-resolver/package*.json ./libs/model-resolver/
-COPY libs/dependency-resolver/package*.json ./libs/dependency-resolver/
-COPY libs/git-utils/package*.json ./libs/git-utils/
-COPY scripts ./scripts
-
-# Install dependencies (--ignore-scripts to skip husky and build:packages in prepare script)
-RUN npm ci --ignore-scripts
-
-# Copy all source files
-COPY libs ./libs
-COPY apps/server ./apps/server
-
-# Build packages in dependency order, then build server
-RUN npm run build:packages && npm run build --workspace=apps/server
-
-# Production stage
-FROM node:20-alpine
-
-# Install git, curl, and GitHub CLI (pinned version for reproducible builds)
-RUN apk add --no-cache git curl && \
-    GH_VERSION="2.63.2" && \
-    curl -L "https://github.com/cli/cli/releases/download/v${GH_VERSION}/gh_${GH_VERSION}_linux_amd64.tar.gz" -o gh.tar.gz && \
-    tar -xzf gh.tar.gz && \
-    mv "gh_${GH_VERSION}_linux_amd64/bin/gh" /usr/local/bin/gh && \
-    rm -rf gh.tar.gz "gh_${GH_VERSION}_linux_amd64"
-
-WORKDIR /app
-
-# Create non-root user
-RUN addgroup -g 1001 -S automaker && \
-    adduser -S automaker -u 1001
-
-# Copy built files and production dependencies
-COPY --from=builder /app/apps/server/dist ./dist
-COPY --from=builder /app/apps/server/package*.json ./
-COPY --from=builder /app/node_modules ./node_modules
-
-# Create data directory
-RUN mkdir -p /data && chown automaker:automaker /data
-
-# Switch to non-root user
-USER automaker
-
-# Environment variables
-ENV NODE_ENV=production
-ENV PORT=3008
-ENV DATA_DIR=/data
-
-# Expose port
-EXPOSE 3008
-
-# Health check
-HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
-    CMD wget --no-verbose --tries=1 --spider http://localhost:3008/api/health || exit 1
-
-# Start server
-CMD ["node", "dist/index.js"]