Remove the admin update service, command, and related files, and update Docker configurations.

Dockerfile.prod

@@ -30,17 +30,7 @@ WORKDIR /app
 # Create non-root user for security (bun user already exists with 1000:1000)
 # No need to create user/group
 
-# Install runtime dependencies for update/deploy commands
-RUN apt-get update && apt-get install -y \
-    git \
-    curl \
-    gnupg \
-    && curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg \
-    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/debian bookworm stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null \
-    && apt-get update \
-    && apt-get install -y docker-ce-cli \
-    && rm -rf /var/lib/apt/lists/* \
-    && git config --system --add safe.directory /app/deploy
+
 
 # Copy only what's needed for production
 COPY --from=builder --chown=bun:bun /app/node_modules ./node_modules