gofmt -w: 14 files, formatting only, no behaviour change (R-1160)

internal/capability/probe.go

@@ -47,7 +47,7 @@ type Runner interface {
 // downgrades a HEALTHY probe to StatusInactive (broken plumbing stays degraded regardless).
 type Prober struct {
 	Runner     Runner
-	Exists     func(path string) bool  // nil → os.Stat
+	Exists     func(path string) bool // nil → os.Stat
 	GateActive func(gate string) bool // nil → every gate treated active
 }