release: cut v2.0.0 — write support complete

Version bumped to 2.0.0 / 13. No code changes beyond the version — 2.0.0
closes out Milestone 2 (write support, v1.1 through v2.0): the final slice
is the save-conflict dialog (external change → overwrite/discard, external
delete → informational close), plus the store refresh: descriptions and
README describe write support and reminders, and fastlane screenshots
(DE+EN, six each) ship for F-Droid. CHANGELOG [2.0.0] carries the details.

Quick-add was cut from scope (the prefilled form covers it); calendar
switching while editing moved to the v3 backlog. Both documented in the
roadmap.

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

docs/superpowers/plans/2026-06-11-03-write-support.md

@@ -48,7 +48,7 @@ Domain bleibt pure Kotlin.
 | v1.1 | Write-Fundament: `WRITE_CALENDAR`, `canModifyContents`, Delete (Serie + einzelnes Vorkommen) | ausgeliefert (v1.1.0, 2026-06-11) |
 | v1.2 | Create: Event-Formular (Titel, Kalender, ganztägig, Start/Ende, Ort, Beschreibung), FAB, Default-Kalender-Pref | ausgeliefert (v1.2.0, 2026-06-11) |
 | v1.3 | Edit: Formular wiederverwendet, Serien-Edit, Reminder-Edit, einfacher Recurrence-Picker | ausgeliefert (v1.3.0, 2026-06-11) |
-| v2.0 | Konflikt-Dialog, Polish-Pass (read-only-Copy in F-Droid/README), Release | offen (Scope-Recut, s.u.) |
+| v2.0 | Konflikt-Dialog, Polish-Pass (Store-Copy, Screenshots), Release | ausgeliefert (v2.0.0, 2026-06-11) |
 
 ## v1.1 — Write-Fundament + Delete
 
@@ -200,4 +200,5 @@ Bearbeiten (Sync-Adapter-Minenfeld, sperren auch alle Stock-Apps).
       aktualisiert (DE+EN)
 - [x] F-Droid-Screenshots (de-DE + en-US, je 6: Woche/Monat/Tag/Detail/
       Formular/Onboarding) — mit Demo-Kalendern auf dem Gerät aufgenommen
-- Changelog, Release-Tag v2.0.0 (nach On-Device-Review)
+- [x] Changelog, Release-Tag v2.0.0 (ausgeliefert 2026-06-11 — Milestone 2
+      damit abgeschlossen)