View and manage credentials tenant-wide


We've brought back the dedicated page for tenant owners to manage credentials across their entire tenant at https://your-tenant-domain/credentials. Building on the familiar team-level view, it allows tenant owners to view credentials in their team context, filter by team, and perform bulk deletions. The table view also displays more information at a glance, including the team or folder a credential belongs to, story usage count, and last-used date.