style: gofmt normalization — no logic changes

gofmt -w across the controller tree (46 files) so gofmt -l is empty — disarms the
formatting landmine where a targeted edit + accidental gofmt -w swept ~46 unrelated
files. Pure formatting: whitespace + gofmt's optional-semicolon removal in reflowed
inline closures. One doc comment reworded ('' -> 'the empty string') to avoid gofmt's
Go-1.19 doc-comment typographic substitition ('' -> curly quote) muddying its meaning.
No build/vet/test behavior change.

controller/internal/appexport/export.go

@@ -468,8 +468,8 @@ func (e *Exporter) GetDebugInfo() map[string]interface{} {
 	defer e.mu.Unlock()
 
 	info := map[string]interface{}{
-		"debug_enabled": e.debug,
-		"version":       e.version,
+		"debug_enabled":  e.debug,
+		"version":        e.version,
 		"has_active_job": e.activeJob != nil,
 	}