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

KanbanTests/AppGroupStateTests.swift

@@ -2,6 +2,12 @@ import Foundation
 import Testing
 @testable import Kanban
 
+/// **⚠ Retired by the one-app collapse — one-app collapse phase 2.** 12-editions.md ▸ App-side
+/// state (re-ruled 2026-07-30) removes the App Group wholesale: one app, one sandbox, one grant, one
+/// open-now flag. This whole file is the two-app arrangement's proof, and it retires with the code
+/// it pins — it is kept green in the meantime rather than deleted ahead of the machinery, because
+/// the machinery is what still ships.
+///
 /// **App-side state in the shared App Group container** (12-editions.md ▸ Distribution and ▸ Both
 /// editions installed, ruled 2026-07-29; 02-architecture.md § Per-board app state).
 ///