HistoryStore.compose(boardRoot📒) returns non-optional and runs for
every session — the nil the gate produced was the only nil it ever had.
makeHistoryProvider is a one-axis decision: git-mode boards bind the git
provider, everything else native, in every tier; Session.tier stays
recorded, dormant. BoardGitSection shrinks to the four mode postures
(.absent and .proPointer die, BoardGitNote and the .git probe with them);
every board carries all three popover tabs (BoardInfoTab.available
retired); the titlebar branch shows on any git-mode board; the settings
sheet and card History section stop reading tier. InertGitTests is
repurposed as UntouchedGitTests — the file layer still never opens .git,
now load-bearing for mode-none boards. The accessibility audit reaches the
settings sheet at last: the fixture board hosts it in every tier, so the
free-fixture disabled-row test becomes an open-and-audit test.
Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
The popover/sheet split lands: a board-scoped, titled, sectioned sheet on
the board window hosts everything setup-shaped, opened from the popover's
Board Settings… row and the new Board ▸ Board Settings… menu row. The three
existing setup controls relocate — add-git (whose noteFormVisible lines now
make the sheet the form-anchored failure surface), branch creation (a
standing field; create-and-switch runs the identical settle sequence), and
the commit-identity fields (the 2s visibility-scoped poll rides with them).
The popover keeps the daily face and its postures; its Pro/mode-none
section becomes header + door (.addGit renamed .noRepository). Availability
is derived from the section inventory (Pro + mode none or git), so pro-m2's
sections can't drift from the doors; the sheet's fields join the
caret-chord disable set. The audit suite pins what the free fixture can
reach; the sheet's own audit is manual until a tier override is ruled.
Claude-Session: https://claude.ai/code/session_01CqjXB7ASoWtbyoGod68k97
rzen