Fix ACE-Step community UI parameter wiring

experiments/acestep15-xl-sft/compose.yaml

@@ -1,6 +1,8 @@
 services:
   music-worker:
-    image: ghcr.io/ace-step/ace-step-1.5:latest@sha256:95652cd780c78a1b1a7f6f0335530430f0ae53d96c7c12d59f9f39fa23d38567
+    build:
+      context: ./worker
+    image: mike-ai/ace-step-1.5:named-api-v1
     container_name: mike-ai-music-acestep-test
     labels:
       com.mike-ai.music-worker: "acestep"
@@ -34,6 +36,8 @@ services:
       - ${ACESTEP_HF_CACHE_DIR:-/data/models/acestep/hf-cache}:/root/.cache/huggingface
       - ${ACESTEP_OUTPUT_DIR:-/data/music/acestep}:/app/gradio_outputs
       - ${ACESTEP_OUTPUT_DIR:-/data/music/acestep}:/app/output
+      # Uploaded Community-UI audio is shared read-only with the named REST API.
+      - ${ACESTEP_UI_DATA_DIR:-/data/music/ace-step-ui}/audio:/data/community-audio:ro
       # Version-pinned UI defaults for XL-SFT quality and lossless output.
       - ./overrides/model_config.py:/app/acestep/ui/gradio/events/generation/model_config.py:ro
       - ./overrides/generation_advanced_output_controls.py:/app/acestep/ui/gradio/interfaces/generation_advanced_output_controls.py:ro