Perf: Optimize Dockerfile with multi-stage build and shallow clone

Dockerfile

@@ -1,6 +1,7 @@
-FROM node:22-bookworm
+# Stage 1: Builder
+FROM node:22-bookworm AS builder
 
-# Install system dependencies
+# Install build dependencies
 RUN apt-get update && apt-get install -y \
     curl \
     git \
@@ -11,37 +12,54 @@ RUN apt-get update && apt-get install -y \
     unzip \
     && rm -rf /var/lib/apt/lists/*
 
-# Install Bun (required for build scripts)
+# Install Bun
 RUN curl -fsSL https://bun.sh/install | bash
 ENV BUN_INSTALL="/root/.bun"
 ENV PATH="${BUN_INSTALL}/bin:${PATH}"
 
-# Enable pnpm
 RUN corepack enable
 
-WORKDIR /home/node/app
+WORKDIR /app
 
-# Clone the official repository
-# We clone into the current directory
-RUN git clone https://github.com/moltbot/moltbot.git .
+# Clone with depth 1 to save space (removes history)
+RUN git clone --depth 1 https://github.com/moltbot/moltbot.git .
 
 # Install dependencies
 RUN pnpm install --frozen-lockfile
 
-# Build application
+# Build Backend
 RUN CLAWDBOT_A2UI_SKIP_MISSING=1 pnpm build
 
 # Build UI
-# Force pnpm for UI build as per official Dockerfile
 ENV CLAWDBOT_PREFER_PNPM=1
 RUN pnpm ui:install
 RUN pnpm ui:build
 
-# Fix permissions for the node user
-RUN chown -R node:node /home/node/app
+# Remove devDependencies to reduce size
+RUN pnpm prune --prod
 
-# Security: Run as non-root
+# Remove .git folder to save space
+RUN rm -rf .git
+
+# Stage 2: Runner
+FROM node:22-bookworm-slim
+
+WORKDIR /home/node/app
+
+# Install runtime dependencies (lightweight)
+# build tools (make, g++) are not needed for runtime
+RUN apt-get update && apt-get install -y \
+    python3 \
+    socat \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set user
 USER node
 
-# Start the application
+# Copy application from builder
+# We copy the entire folder as pruned by 'pnpm prune --prod'
+COPY --from=builder --chown=node:node /app /home/node/app
+
+# Start
 CMD ["node", "dist/index.js"]