Aurora UI v0.1.1

Interaction & layout fixes from a full visual/interaction QA pass of the component lab (all backward compatible).

Fixed

• Overlays (dialog / alert dialog / drawer) now open from their triggers — hooks observe data-aui-open; the drawer calls native show()/showModal(); the dialog is centered against consumer resets.
• Tooltip renders (hook moved to the bubble instead of hiding the trigger).
• Popover opens via the native showPopover() API (matches its :popover-open CSS).
• Command palette opens from its visible button; combobox hook now activates.
• Gallery is a multi-column grid again.
• Copy buttons work (unique story ids); the lab/example ignore aui:* hook events instead of crashing.

184 tests pass. See the CHANGELOG.