Add NVIDIA self-heal tools and per-GPU SAT status

audit/internal/collector/nvidia.go

@@ -13,6 +13,7 @@ import (
 const nvidiaVendorID = 0x10de
 
 type nvidiaGPUInfo struct {
+	Index              int
 	BDF                string
 	Serial             string
 	VBIOS              string
@@ -132,6 +133,7 @@ func parseNVIDIASMIQuery(raw string) (map[string]nvidiaGPUInfo, error) {
 		}
 
 		info := nvidiaGPUInfo{
+			Index:              parseRequiredInt(rec[0]),
 			BDF:                bdf,
 			Serial:             strings.TrimSpace(rec[2]),
 			VBIOS:              strings.TrimSpace(rec[3]),
@@ -187,6 +189,14 @@ func parseMaybeInt(v string) *int {
 	return &n
 }
 
+func parseRequiredInt(v string) int {
+	n, err := strconv.Atoi(strings.TrimSpace(v))
+	if err != nil {
+		return 0
+	}
+	return n
+}
+
 func pcieLinkGenLabel(gen int) string {
 	return fmt.Sprintf("Gen%d", gen)
 }
@@ -240,6 +250,10 @@ func setPCIeFallback(dev *schema.HardwarePCIeDevice) {
 }
 
 func injectNVIDIATelemetry(dev *schema.HardwarePCIeDevice, info nvidiaGPUInfo) {
+	if dev.Telemetry == nil {
+		dev.Telemetry = map[string]any{}
+	}
+	dev.Telemetry["nvidia_gpu_index"] = info.Index
 	if info.TemperatureC != nil {
 		dev.TemperatureC = info.TemperatureC
 	}