feat(lifecycle): auto-commit sweep of the machine flake before pull/rebuild/home

With settings.autoCommit on, only menu/theme mutations were committed
(theme-sync pathspec-limits to theme-state.json by design), so hand
edits to system.nix/home.nix and lock bumps stayed forever-dirty.

New internal nomarchy-autocommit (nomarchy-lifecycle): live-reads the
same flag, commits everything dirty as "nomarchy: auto-commit before
<pull|rebuild|home switch>" with the swept file list in the body,
fallback identity, never fatal (|| true at call sites). Called at the
top of all three lifecycle commands; before the ff-only pull it also
un-dirties the tree. Exposed via passthru.autocommit + package export;
guarded by checks.lifecycle-autocommit (sandbox repos: sweep, no-op on
clean/off/non-repo). Sync sweep: README, RECOVERY, ROADMAP, rofi
toggle, control-center prompt, theme-sync docstring, JOURNAL.

Verified: V1+ — flake check --no-build green; the new check builds;
end-to-end run of the built nomarchy-rebuild (stubbed sudo/rebuild)
against a copy of a real dirty ~/.nomarchy: 4 files → one commit,
clean tree. No VM boot — no session-visible surface.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

modules/home/rofi.nix

@@ -806,7 +806,9 @@ ${themeRows}
       autocommit)
         # Toggle opt-in auto-commit: every menu/theme mutation also commits
         # theme-state.json (that file only) in the downstream flake, so
-        # settings history is `git log`. Nothing in Nix consumes the flag —
+        # settings history is `git log`; nomarchy-pull/-rebuild/-home
+        # additionally sweep everything else dirty (hand edits, lock bumps)
+        # into a commit first. Nothing in Nix consumes the flag —
         # the tool reads the live state on each write — so the toggle is
         # instant, no rebuild. The off-write commits too (the tool fires
         # when the flag was on before OR after), keeping history consistent.
@@ -815,7 +817,7 @@ ${themeRows}
           notify-send "Auto-commit" "Off — menu changes stay uncommitted in your flake."
         else
           nomarchy-theme-sync --quiet set settings.autoCommit true --no-switch
-          notify-send "Auto-commit" "On — each change commits theme-state.json in your flake."
+          notify-send "Auto-commit" "On — menu changes commit; rebuilds sweep pending edits in too."
         fi
         exit 0 ;;