feat(hub-ui): raise the recent dock out of the float bar's overflow

[antfubot]

What

In float mode, a dock selected from beyond the bar — the overflow popover or a dock group — is now raised into a dedicated recent dock slot between the bar's visible items and the overflow button. Deselecting it (or selecting a visible neighbour) keeps it there, one click away, instead of folding it straight back out of reach.

With a 3-slot bar over entries A–E:

• [A] [B] [C] | [Overflow] — select D from the popover → [A] [B] | {D} [Overflow]
• Unselect D, or select A/B → D stays: [A] {B} | [D] [Overflow]
• Select E from the popover → E replaces D: [A] [B] | {E} [Overflow]
• Select C (inside the natural slice) → back to [A] [B] {C} | [Overflow]

The recent slot consumes one of maxVisibleItems, the raised entry is lifted out of the overflow popover (badge follows), and a grouped member is always raised on selection — its own entry never has a rail slot of its own. The id persists per-tab as recentDockId on the existing devframes-dock-session sessionStorage store, so it survives reloads.

How

• @devframes/hub: DockSessionStorage gains an optional recentDockId.
• @devframes/hub-ui dock-settings.ts: docksSplitGroupsWithCapacity accepts a resolved recent entry and reserves its slot (skipped when there's no overflow, or when the recent entry sits inside the natural visible slice — it renders in place there, releasing the slot); new pure helpers resolveRecentDockEntry (persisted id → raisable entry, dropping unregistered/hidden ones) and resolveNextRecentDockId (the selection rule).
• Dock.vue renders the recent slot and updates recentDockId by watching the selection, so palette / RPC / restore selections behave the same as rail clicks.
• Unit tests cover the full A–E walkthrough, the group-member and lone-overflow-fold cases, and the resolver; a WithRecentDock story shows the slot live (behavior also verified interactively in Storybook).

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Created with the help of an agent.

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Project	Deployment	Actions	Updated (UTC)
devframe	Ready	Preview	Aug 27, 2026 6:24am