fix(thresholds): mark wear leveling count (attr 177) as critical

Samsung SSDs report wear leveling count via SMART attribute 177, but it
was not displayed by default because it was not marked as critical.

Changes:
- Mark attribute 177 as Critical: true so it displays by default
- Rename from "Wear Range Delta" to "Wear Leveling Count" to match smartctl
- Set Ideal: "high" since higher values indicate less wear
- Update description to be more informative

Fixes #21
Upstream: AnalogJ#818

Author: Starosdev

webapp/backend/pkg/thresholds/ata_attribute_metadata.go

@@ -424,11 +424,11 @@ var AtaMetadata = map[int]AtaAttributeMetadata{
 	},
 	177: {
 		ID:          177,
-		DisplayName: "Wear Range Delta",
+		DisplayName: "Wear Leveling Count",
 		DisplayType: AtaSmartAttributeDisplayTypeNormalized,
-		Ideal:       "",
-		Critical:    false,
-		Description: "Delta between most-worn and least-worn Flash blocks. It describes how good/bad the wearleveling of the SSD works on a more technical way. ",
+		Ideal:       "high",
+		Critical:    true,
+		Description: "Indicates the number of media program and erase operations (wear indicator) on SSD flash memory. Higher normalized values are better (100 = new, decreasing = more wear). Used by Samsung, Crucial, and other SSD manufacturers.",
 	},
 	179: {
 		ID:          179,