feat: remove gpu support and simplify to cpu-only

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