91ceddc489
Implements native Matrix notification channel support, allowing users to receive service alerts in any Matrix room via the Client-Server API. Changes: - server/service-operation/notification/matrix.go: new Matrix service implementing the NotificationService interface (PUT /_matrix/client/v3/...) - server/service-operation/notification/types.go: add MatrixHomeserver, MatrixRoomID, MatrixAccessToken fields to AlertConfiguration - server/service-operation/notification/manager.go: register MatrixService - server/pb_migrations/1772200000_updated_alert_configurations_matrix.js: PocketBase migration adding matrix fields and notification_type value - application: Matrix option in channel dialog with homeserver/room/token fields, tab filter, list display, type definitions and translations (en, km) - application/public/upload/notification/matrix.png: Matrix channel icon