The lane header no longer draws a new-card button. Every other
creation path is untouched: File > New Card (Cmd-N), Return on a
selected lane, and double-click on lane empty space.
- LaneView: drop the button and its overlay slot, leaving the
collapse chevron as the header's one piece of trailing chrome.
- NewCardTarget: drop the button's click-names-target carve-out over
the Cmd-N target rule (Return on a selected lane is now the only
direct-target path left).
- AccessibilityPhrases: drop the button's spoken label.
- BoardMetrics: drop its width reserve; laneHeaderTrailingReserve now
reduces to the collapse chevron's own reserve.
- DESIGN/03, 04, 10, 11: update the lane title-bar inventory, the
Cmd-N override clause and search-clearing mechanism list, the
accessibility tree-shape sentence, and the pointer-grammar row that
described the button.
- Tests: drop the two pinned accessibility-label tests and the
newCardButtonReserve assertions; retarget the truncation-headroom
test at the now-solo laneHeaderTrailingReserve; fix stale doc-quote
comments and the manual accessibility-verification checklist.
Full KanbanTests suite: 2807 tests, 482 suites, all passing.
Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy
rzen
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