refactor: harden diagnostics and consolidate runtime code

audit/internal/webui/page_topo_diagram.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 
 	"bee/audit/internal/app"
+	"bee/audit/internal/platform"
 	"bee/audit/internal/schema"
 )
 
@@ -499,7 +500,6 @@ var (
 	topoNVLinkGPUHeaderRe = regexp.MustCompile(`^GPU (\d+):`)
 	topoNVLinkSpeedLineRe = regexp.MustCompile(`^Link (\d+):\s*([\d.]+)\s*GB/s`)
 	topoNVLinkInactiveRe  = regexp.MustCompile(`^Link (\d+):\s*<inactive>`)
-	topoNVLinkErrorLineRe = regexp.MustCompile(`^Link (\d+):\s*(Replay|Recovery|CRC) Errors:\s*(\d+)`)
 )
 
 func readTopoNVLinkStatus(exportDir string) (map[int][]topoNVLinkPort, error) {
@@ -549,38 +549,7 @@ func readTopoNVLinkErrors(exportDir string) (map[int]map[int][3]int64, error) {
 
 // parseTopoNVLinkErrors returns, per GPU then link index, [replay, recovery, crc].
 func parseTopoNVLinkErrors(raw string) map[int]map[int][3]int64 {
-	result := map[int]map[int][3]int64{}
-	currentGPU := -1
-	for _, line := range strings.Split(raw, "\n") {
-		trimmed := strings.TrimSpace(line)
-		if m := topoNVLinkGPUHeaderRe.FindStringSubmatch(trimmed); m != nil {
-			currentGPU, _ = strconv.Atoi(m[1])
-			continue
-		}
-		if currentGPU < 0 {
-			continue
-		}
-		m := topoNVLinkErrorLineRe.FindStringSubmatch(trimmed)
-		if m == nil {
-			continue
-		}
-		linkIdx, _ := strconv.Atoi(m[1])
-		count, _ := strconv.ParseInt(m[3], 10, 64)
-		if result[currentGPU] == nil {
-			result[currentGPU] = map[int][3]int64{}
-		}
-		c := result[currentGPU][linkIdx]
-		switch m[2] {
-		case "Replay":
-			c[0] = count
-		case "Recovery":
-			c[1] = count
-		case "CRC":
-			c[2] = count
-		}
-		result[currentGPU][linkIdx] = c
-	}
-	return result
+	return platform.ParseNvidiaNVLinkErrors(raw)
 }
 
 // renderTopoNVLinkCard renders the separate NVLink topology card. Returns ""