DF8104: Nested Dock Groups Unsupported

Message

Dock group "{id}" cannot itself belong to a group (nested groups are unsupported)

Cause

A type: 'group' entry was registered with groupId set. Dock grouping is one level deep: a group collects member entries, but a group cannot itself be a member of another group.

Fix

• Remove groupId from the group entry so it stays a top-level dock-bar button.
• Keep members one level under their group; place each member's groupId on the leaf entry, not on another group.

Source

• packages/hub/src/node/host-docks.ts — DevframeDocksHost.register() and update() throw this when view.type === 'group' and view.groupId is set.