Fix ModuleNotFoundError: clone Seed-VC to app dir instead of /tmp

ZeroGPU workers may not share /tmp with the main process. Clone Seed-VC
to the app directory (seed-vc/) which is accessible from both contexts.
Also call setup_seed_vc() inside the GPU function and add detailed error
logging for module import failures.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -12,3 +12,4 @@ build/
 logs/
 /tmp/
 .DS_Store
+seed-vc/

pipeline/inference.py

@@ -25,7 +25,7 @@ except ImportError:
                 return fn
             return decorator
 
-from pipeline.setup import SEED_VC_DIR, ensure_seed_vc_path
+from pipeline.setup import SEED_VC_DIR, ensure_seed_vc_path, setup_seed_vc
 
 OUTPUT_DIR = "/tmp/rvc_output"
 
@@ -38,7 +38,8 @@ def _load_seed_vc_models(device):
     if "model" in _model_cache:
         return _model_cache
 
-    ensure_seed_vc_path()
+    # Ensure Seed-VC is cloned and on path (critical for ZeroGPU workers)
+    setup_seed_vc()
 
     # Import Seed-VC's model loading utilities
     from modules.commons import recursive_munch, build_model, load_checkpoint
@@ -194,8 +195,23 @@ def convert_voice(
     logger.info("Converting voice with Seed-VC on {}".format(device))
     logger.info("Source: {}, Reference: {}, Pitch: {}".format(audio_path, reference_path, pitch))
 
+    # Ensure Seed-VC is available in this worker process
+    try:
+        setup_seed_vc()
+    except Exception as e:
+        logger.error("Seed-VC setup failed in GPU worker: {}".format(e))
+        raise RuntimeError("Seed-VC setup failed: {}".format(e))
+
     # Load models
-    cache = _load_seed_vc_models(device)
+    try:
+        cache = _load_seed_vc_models(device)
+    except ModuleNotFoundError as e:
+        logger.error("Module not found: {}. sys.path: {}".format(e, sys.path[:5]))
+        logger.error("SEED_VC_DIR exists: {}, contents: {}".format(
+            os.path.exists(SEED_VC_DIR),
+            os.listdir(SEED_VC_DIR) if os.path.exists(SEED_VC_DIR) else "N/A"
+        ))
+        raise
     model = cache["model"]
     semantic_fn = cache["semantic_fn"]
     vocoder_fn = cache["vocoder_fn"]

pipeline/setup.py

@@ -10,7 +10,7 @@ import logging
 
 logger = logging.getLogger(__name__)
 
-SEED_VC_DIR = "/tmp/seed-vc"
+SEED_VC_DIR = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "seed-vc")
 SEED_VC_REPO = "https://github.com/Plachtaa/seed-vc.git"