feat: remove gpu support and simplify to cpu-only

app/routers/system.py

@@ -5,7 +5,7 @@ import psutil
 
 from fastapi import APIRouter
 
-from app.schemas.system import GpuDevice, HealthResponse, SystemInfoResponse
+from app.schemas.system import HealthResponse, SystemInfoResponse
 from app.services import facefusion_bridge
 
 logger = logging.getLogger(__name__)
@@ -21,36 +21,11 @@ async def health_check():
 @router.get('/system', response_model=SystemInfoResponse)
 async def system_info():
     providers = facefusion_bridge.get_execution_providers()
-    gpu_devices = _detect_gpu_devices()
     mem = psutil.virtual_memory()
 
     return SystemInfoResponse(
         execution_providers=providers,
-        gpu_devices=gpu_devices,
         cpu_count=os.cpu_count(),
         memory_total=mem.total,
         memory_available=mem.available,
     )
-
-
-def _detect_gpu_devices():
-    devices = []
-    try:
-        import subprocess
-        result = subprocess.run(
-            ['nvidia-smi', '--query-gpu=index,name,memory.total,memory.used', '--format=csv,noheader,nounits'],
-            capture_output=True, text=True, timeout=5,
-        )
-        if result.returncode == 0:
-            for line in result.stdout.strip().split('\n'):
-                parts = [p.strip() for p in line.split(',')]
-                if len(parts) >= 4:
-                    devices.append(GpuDevice(
-                        id=int(parts[0]),
-                        name=parts[1],
-                        memory_total=int(float(parts[2])) * 1024 * 1024,
-                        memory_used=int(float(parts[3])) * 1024 * 1024,
-                    ))
-    except (FileNotFoundError, subprocess.TimeoutExpired):
-        pass
-    return devices

app/schemas/process.py

@@ -104,7 +104,6 @@ class ProcessingOptions(BaseModel):
     face_detector: Optional[FaceDetectorOptions] = None
     face_selector: Optional[FaceSelectorOptions] = None
     output: Optional[OutputOptions] = None
-    execution_providers: Optional[List[str]] = None
     execution_thread_count: Optional[int] = None
     video_memory_strategy: Optional[str] = None
 

app/schemas/system.py

@@ -7,16 +7,8 @@ class HealthResponse(BaseModel):
     status: str = 'ok'
 
 
-class GpuDevice(BaseModel):
-    id: int
-    name: str
-    memory_total: Optional[int] = None
-    memory_used: Optional[int] = None
-
-
 class SystemInfoResponse(BaseModel):
     execution_providers: List[str]
-    gpu_devices: List[GpuDevice]
     cpu_count: Optional[int] = None
     memory_total: Optional[int] = None
     memory_available: Optional[int] = None

app/services/facefusion_bridge.py

@@ -339,8 +339,6 @@ def build_args_from_options(
                 args[f'output_{key}'] = out[key]
 
     # Execution overrides
-    if 'execution_providers' in options:
-        args['execution_providers'] = options['execution_providers']
     if 'execution_thread_count' in options:
         args['execution_thread_count'] = options['execution_thread_count']
     if 'video_memory_strategy' in options: