Upgrade to Gradio 5.12.0 for proper ZeroGPU authentication

Gradio 4.44.0 doesn't properly pass auth cookies for ZeroGPU,
causing "Unlogged user" errors even when the user is logged in.
Gradio 5.12.0+ fixes this. Also:
- Removed all gradio 4.44.0 monkey-patches (no longer needed)
- Removed starlette pin (no longer needed)
- Restored @spaces.GPU on separation and inference

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

README.md

@@ -4,7 +4,7 @@ emoji: "\U0001F3A4"
 colorFrom: purple
 colorTo: blue
 sdk: gradio
-sdk_version: 4.44.0
+sdk_version: 5.12.0
 python_version: "3.10"
 app_file: app.py
 pinned: false

app.py

@@ -11,51 +11,6 @@ import shutil
 
 import gradio as gr
 
-# ── Monkey-patch gradio_client schema parsing bugs ──────────────────────────
-# get_type() and _json_schema_to_python_type() crash when schema is a bool.
-try:
-    import gradio_client.utils as _gc_utils
-
-    _original_get_type = _gc_utils.get_type
-
-    def _patched_get_type(schema):
-        if isinstance(schema, bool):
-            return "Any"
-        try:
-            return _original_get_type(schema)
-        except TypeError:
-            return "Any"
-
-    _gc_utils.get_type = _patched_get_type
-
-    _original_json_schema = _gc_utils._json_schema_to_python_type
-
-    def _patched_json_schema(schema, defs=None):
-        if isinstance(schema, bool):
-            return "Any"
-        try:
-            return _original_json_schema(schema, defs)
-        except TypeError:
-            return "Any"
-
-    _gc_utils._json_schema_to_python_type = _patched_json_schema
-except Exception:
-    pass
-
-# Safety net: patch Blocks.get_api_info to prevent TypeError propagation.
-try:
-    _orig_get_api_info = gr.Blocks.get_api_info
-
-    def _safe_get_api_info(self, *args, **kwargs):
-        try:
-            return _orig_get_api_info(self, *args, **kwargs)
-        except TypeError:
-            return {"named_endpoints": {}, "unnamed_endpoints": {}}
-
-    gr.Blocks.get_api_info = _safe_get_api_info
-except Exception:
-    pass
-
 # Setup logging
 logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
 logger = logging.getLogger(__name__)

pipeline/inference.py

@@ -26,6 +26,7 @@ from pipeline.setup import APPLIO_DIR, ensure_applio_path
 OUTPUT_DIR = "/tmp/rvc_output"
 
 
+@spaces.GPU(duration=60)
 def convert_voice(
     audio_path: str,
     model_path: str,

pipeline/separation.py

@@ -22,6 +22,7 @@ except ImportError:
 OUTPUT_DIR = "/tmp/demucs_output"
 
 
+@spaces.GPU(duration=60)
 def separate_audio(audio_path: str, model_name: str = "htdemucs"):
     """
     Separate audio into vocals and instruments using Demucs.

requirements.txt

@@ -1,6 +1,5 @@
 # Gradio + HuggingFace
-gradio==4.44.0
-starlette<0.38.0
+gradio>=5.12.0
 spaces
 huggingface_hub>=0.23.0