build: Remove non-root user creation and related permission changes from the Dockerfile.

Dockerfile

@@ -82,10 +82,6 @@ RUN apk add --no-cache \
 ENV CHROME_BIN=/usr/bin/chromium-browser
 ENV CHROME_PATH=/usr/bin/chromium-browser
 
-# Create non-root user
-RUN addgroup -g 1000 codexpool && \
-    adduser -u 1000 -G codexpool -s /bin/sh -D codexpool
-
 # Set working directory
 WORKDIR /app
 
@@ -93,13 +89,7 @@ WORKDIR /app
 COPY --from=backend-builder /app/codex-pool /app/codex-pool
 
 # Create data directory
-RUN mkdir -p /app/data && chown -R codexpool:codexpool /app
-
-# Default config path
-ENV CONFIG_PATH=/app/data/config.yaml
-
-# Switch to non-root user
-USER codexpool
+RUN mkdir -p /app/data
 
 # Expose port
 EXPOSE 8848