The tier axis comes out of the git stack — compose unconditional, postures mode-driven

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
This commit is contained in:
2026-08-07 20:21:28 -04:00
parent da0d7fd2d7
commit 798a8bac73
32 changed files with 830 additions and 904 deletions
+5 -3
View File
@@ -7,9 +7,11 @@ import Foundation
///
/// ### Why a struct of closures rather than a reference to the committer
///
/// `BoardStore` lives in the live store and must not learn what a repository is: the free tier
/// composes no `HistoryStore`, so the engine has to be *structurally* unreachable there rather than
/// switched off, and a store holding an optional committer would be a store that knows about git.
/// `BoardStore` lives in the live store and must not learn what a repository is: most boards have no
/// committer at all git is opt-in per board (06 Rules), and since the 2026-08-07 pivot that is
/// the *only* reason a board lacks one (12-editions.md) so the engine has to be *structurally*
/// unreachable there rather than switched off, and a store holding an optional committer would be a
/// store that knows about git.
/// One optional value, `nil` on every board that has no committer, is the same shape `watcherBrackets`
/// and `history` already take, and it keeps the three orderings before the write, after the
/// bracket, after the landing stated in one type instead of three properties that could drift.