No locking (plan 03, decision 5): openForEdit keeps an EditSnapshot — the prefilled form plus the raw Events-row times, which the form itself can't see (it derives its times from the tapped occurrence, so an externally moved event would otherwise stay invisible). Right before writing, performSave re-reads the event and compares snapshots: a mismatch parks the save in SaveUiState.AwaitingConflict carrying the already-chosen recurring scope, and the dialog offers overwrite / discard / cancel (OptionCard style). Overwrite still writes only dirty fields, so external changes to untouched fields survive either way. A deleted event lands in SaveUiState.Gone — an informational dialog that closes form and detail. Fields the form can't write (attendees, status, self response, reminder methods) are excluded from the comparison so sync noise can't fake a conflict. The load-time zone is pinned in the EditTarget so a device timezone change mid-edit can't either. Store metadata: F-Droid descriptions (DE+EN) and the README stop claiming read-only and now describe write support and reminder delivery. New fastlane phoneScreenshots (6 per locale: week/month/day/detail/form/ reminder onboarding), captured on-device against demo-only calendars. Tests: EditSnapshot equality (unchanged event, field change, row-time move the form can't see, non-writable changes stay quiet). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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117 KiB
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