Introduce platform-neutral PlatformKind, PlatformUser, PlatformGroup, and IPlatformMessenger contracts in GmRelay.Shared.
Route Telegram session schedule updates, direct notifications, interaction replies, and calendar export through TelegramPlatformMessenger while preserving existing Telegram behavior.
Bump version -> 2.0.1
Route new schedules to an existing forum topic when /newsession is sent inside one, create bot-owned topics only from the forum root, and keep group notifications/dashboard updates threaded to the stored topic.
Persist topic ownership so deletion only removes empty bot-created topics, add topic routing tests and smoke coverage, and bump release metadata to 1.14.0.
Toutsu