release: cut v2.2.0 — tap-to-create + local calendar management

Day/week: tap an empty slot to open the create form prefilled with that
day and the tapped hour (snapped to the hour, 1 h long). Threaded a start
time through CalendarHost → EventEditScreen → openNew; the FAB keeps its
default.

Local calendars: a full-screen editor from Settings → Calendars to
create/rename/recolor/delete device-only calendars (ACCOUNT_TYPE_LOCAL,
sync-adapter insert) with name, pastel-previewed colour, and a description
(stored in CAL_SYNC1). Synced calendars are listed read-only grouped by
account, each with a "manage in source app" deep-link resolved from the
account's own authenticator (DAVx5/ICSx5/…), plus an add-account shortcut;
a <queries> block makes the source apps launchable. Extracted a shared
InlineTextField into ui.common so the event form and calendar editor share
one borderless input style.

Tests: repository delegation + write-failure, mapper isLocal/description,
fake data source extended. Version bumped to 2.2.0 / 20200.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/build.gradle.kts

@@ -28,8 +28,8 @@ android {
         // the tag, with versionCode = MAJOR*10000 + MINOR*100 + PATCH
         // (e.g. v2.0.0 -> 20000). These committed values are the dev/local
         // default; keep them matching the latest released tag. See docs/RELEASING.md.
-        versionCode = 20100
-        versionName = "2.1.0"
+        versionCode = 20200
+        versionName = "2.2.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }