Collapse the edition split — one target, twins merged, verify-editions retired

Phase 1 of the 2026-07-30 one-app pivot (DESIGN 0bec9a6, card c3a3ddd5):
the KanbanPro target, LaneworkPro scheme, KanbanProTests module-alias
bundle, KanbanPro/ source root and scripts/verify-editions.sh retire
wholesale. project.yml reads as a single-target file again (anchors
inlined, header rewritten in tier vocabulary).

The edition twins merge: EditionTypes -> PasteboardTypes (one
UTType(exportedAs:) home — the one app owns the family types),
EditionAbout -> AboutBox (the quiet Pro signpost survives as the About
box's one line; "…in Settings" deferred until the StoreKit phase gives
it somewhere to point). InertGitTests drops its Base prefix — the
inert-.git posture is unconditional app behavior, unsubscribed and
lapsed being one state.

Entitlements gain com.apple.security.network.client, declared now and
dormant until Pro's remotes use it; no keychain access group. The App
Group key deliberately stays — it goes with AppGroup.swift in phase 2,
since pulling it first would silently drop the app into the fallback
container. README/RELEASE.md build-and-pipeline prose updated to the
one-record world; the subscription story lands with phase 3.

1893 tests in 322 suites green.

Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY

Kanban/UI/Board/BoardToolbar.swift

@@ -38,9 +38,9 @@ extension NSToolbarItem.Identifier {
 /// predicate written here — it is literally the same validation. Both reach the board window, whose
 /// `windowWillReturnUndoManager` hands back the session's `BoardUndoManager`, and both therefore
 /// enable exactly when that board has a step to cross and no read-only lock stands
-/// (13-native-undo.md ▸ Rules). **Every base board has undo**, so there is no edition-shaped
+/// (13-native-undo.md ▸ Rules). **Every board has undo in every tier**, so there is no tier-shaped
 /// disablement to write: 03's parenthetical about boards without undo is 06's *git* substrate, which
-/// only Pro binds.
+/// only a Pro subscription binds.
 ///
 /// Their labels are the design's one exception to the menu-title rule: `NSUndoManager` rewrites the
 /// *menu* titles as the stack changes ("Undo Move Card"), which a toolbar label does not track, so