Function isCollectionVisible

internal/server/server.go:2254–2264

isCollectionVisible checks if a collection ID is in the visible set. If visibleIDs is nil, all collections are visible.

(collectionID string, visibleIDs []string)

// isCollectionVisible checks if a collection ID is in the visible set.
// If visibleIDs is nil, all collections are visible.
func isCollectionVisible(collectionID string, visibleIDs []string) bool {
	if visibleIDs == nil {
		return true
	}
	for _, id := range visibleIDs {
		if id == collectionID {
			return true
		}
	}
	return false
}

// filterUserGrantsForCaller narrows collGrants/itemGrants — the TARGET
// user's grants, already loaded by the caller — down to what the CALLER can