chore: replace em dashes with hyphens, add no-em-dash rule to CLAUDE.md

internal/inventory/collect_windows.go

@@ -28,7 +28,7 @@ func collect(r *pb.InventoryReport, includeStatic bool) {
 	if m.TotalPhys > m.AvailPhys {
 		r.Memory.UsedBytes = m.TotalPhys - m.AvailPhys
 	}
-	// TotalPageFile is the commit limit — physical memory plus the pagefile —
+	// TotalPageFile is the commit limit - physical memory plus the pagefile -
 	// so the pagefile alone is the difference.
 	swapTotal := sub(m.TotalPageFile, m.TotalPhys)
 	swapUsed := sub(sub(m.TotalPageFile, m.AvailPageFile), sub(m.TotalPhys, m.AvailPhys))