feat: remove GPU support and simplify to CPU-only architecture

app/routers/health.py

@@ -75,20 +75,6 @@ async def get_system_info() -> SystemInfo:
         disk = psutil.disk_usage('/')
         disk_percent = disk.percent
         
-        # GPU
-        gpu_available = False
-        gpu_memory_mb = None
-        gpu_memory_used_mb = None
-        
-        try:
-            import torch
-            gpu_available = torch.cuda.is_available()
-            if gpu_available:
-                gpu_memory_mb = int(torch.cuda.get_device_properties(0).total_memory / (1024 * 1024))
-                gpu_memory_used_mb = int(torch.cuda.memory_allocated(0) / (1024 * 1024))
-        except Exception:
-            pass
-        
         # Models directory size
         models_size = file_manager.get_directory_size_mb(settings.models_dir)
         
@@ -103,9 +89,6 @@ async def get_system_info() -> SystemInfo:
             cpu_usage_percent=cpu_percent,
             memory_usage_percent=memory_percent,
             disk_usage_percent=disk_percent,
-            gpu_available=gpu_available,
-            gpu_memory_mb=gpu_memory_mb,
-            gpu_memory_used_mb=gpu_memory_used_mb,
             execution_providers=settings.get_execution_providers(),
             models_dir_size_mb=models_size,
             jobs_queue_length=queue_length,