fix(ci): satisfy golangci-lint in api keys code

Правки errcheck в тестах httpapi и gofmt полей APIKeyPatch в store.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/store/backend.go

@@ -260,10 +260,10 @@ type APIKeyCreate struct {
 
 // APIKeyPatch is a partial update (role change affects auth after resolver reload).
 type APIKeyPatch struct {
-	Name             *string    `json:"name,omitempty"`
-	Role             *string    `json:"role,omitempty"`
-	ExpiresAt        *time.Time `json:"expires_at,omitempty"`
-	ClearExpiresAt   bool       `json:"-"`
+	Name           *string    `json:"name,omitempty"`
+	Role           *string    `json:"role,omitempty"`
+	ExpiresAt      *time.Time `json:"expires_at,omitempty"`
+	ClearExpiresAt bool       `json:"-"`
 }
 
 // APIKeyWithSecret is returned only on create/rotate.