Remove the lane header's "+" new-card control

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
This commit is contained in:
2026-08-08 23:28:05 -04:00
parent b09c4bd5c0
commit eb950ee881
16 changed files with 76 additions and 126 deletions
+2 -2
View File
@@ -359,8 +359,8 @@ struct PasteFromTrashTests {
/// Two rules that meet at the same guard.
///
/// **A paste is a user-initiated creation, so it clears the destination's query**
/// (04-interactions.md § Search, stated by mechanism: "N, Return-creation, the header button,
/// empty-space double-click, paste, and Finder file drops alike") cards and lanes alike, since the
/// (04-interactions.md § Search, stated by mechanism: "N, Return-creation, empty-space
/// double-click, paste, and Finder file drops alike") cards and lanes alike, since the
/// clipboard holds one or the other and both mint items on arrival.
///
/// **The pasteboard is re-read lazily, and a stale paste no-ops** (04 Clipboard, settled):