fix: rearrange steps again

backend/playout/Dockerfile

@@ -16,22 +16,18 @@ RUN apk add --no-cache \
     ffmpeg \
     curl \
     bash
-
+# Set working directory for playout
 WORKDIR /app
 # Copy demo data for out-of-the-box playout
 COPY demodata/ /app/
-
-COPY --from=builder /playlist-manager /app/playlist-manager
+# Copy the playout start script and the built playlist manager binary
 COPY start-playout.sh /app/
-
-
+# Copy the built playlist manager binary from the builder stage
+COPY --from=builder /playlist-manager /app/playlist-manager
 # Create directories for playlist, media, and HLS output
 RUN mkdir -p /app/hls
-
 RUN chmod +x /app/start-playout.sh /app/playlist-manager
-
 # Expose HLS directory (will be served by nginx)
 VOLUME ["/app/hls"]
-
 # Default command runs the playout loop (which calls the Go validator)
 CMD ["./start-playout.sh"]