fixed gpu detection - bc unknown lib

WatcherAgent/src/hardware/gpu.rs

@@ -16,8 +16,9 @@ pub async fn get_gpu_info() -> Result<GpuInfo, Box<dyn Error>> {
     let device = nvml.device_by_index(0)?;
 
     let (used, total) = get_gpu_vram_usage(&device)?;
+    let gpu_name = detect_gpu_name();
     Ok(GpuInfo {
-        name: device.name().ok(),
+        name: Some(gpu_name),
         current_load: get_gpu_load(&device).ok(),
         current_temp: get_gpu_temp(&device).ok(),
         vram_total: Some(total as f64),
@@ -39,3 +40,47 @@ pub fn get_gpu_vram_usage(device: &nvml_wrapper::Device) -> Result<(f64, f64), B
     let mem_info = device.memory_info().unwrap();
     Ok((mem_info.used as f64, mem_info.total as f64))
 }
+
+fn detect_gpu_name() -> String {
+    try_nvml_gpu_name()
+        .or_else(fallback_gpu_name)
+        .unwrap_or_else(|| "Unknown GPU".to_string())
+}
+
+fn try_nvml_gpu_name() -> Option<String> {
+    let nvml = Nvml::init().ok()?;
+    let device = nvml.device_by_index(0).ok()?;
+    device.name().ok().map(|s| s.to_string())
+}
+
+fn fallback_gpu_name() -> Option<String> {
+    #[cfg(target_os = "linux")]
+    {
+        let output = std::process::Command::new("lshw")
+            .args(&["-C", "display"])
+            .output()
+            .ok()?;
+        Some(
+            String::from_utf8_lossy(&output.stdout)
+                .lines()
+                .find(|l| l.contains("product:"))
+                .map(|l| l.trim().replace("product:", "").trim().to_string())
+                .unwrap_or("Unknown GPU".to_string()),
+        )
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+        let output = std::process::Command::new("wmic")
+            .args(&["path", "win32_VideoController", "get", "name"])
+            .output()
+            .ok()?;
+        Some(
+            String::from_utf8_lossy(&output.stdout)
+                .lines()
+                .nth(1)
+                .map(|s| s.trim().to_string())
+                .unwrap_or("Unknown GPU".to_string()),
+        )
+    }
+}