feat(geplante-nachrichten): scheduled message rule engine with bot delivery, admin UI, and manual trigger

frontend/src/types/scheduledMessages.types.ts

@@ -0,0 +1,52 @@
+export type MessageType =
+  | 'event_summary'
+  | 'birthday_list'
+  | 'dienstjubilaeen'
+  | 'fahrzeug_status'
+  | 'fahrzeug_event'
+  | 'bestellungen';
+
+export type TriggerMode = 'day_of_week' | 'days_before_month_start' | 'event';
+export type WindowMode = 'rolling' | 'calendar_month';
+
+export interface ScheduledMessageRule {
+  id: string;
+  name: string;
+  message_type: MessageType;
+  trigger_mode: TriggerMode;
+  day_of_week: number | null;
+  send_time: string | null;
+  days_before_month_start: number | null;
+  window_mode: WindowMode | null;
+  window_days: number | null;
+  target_room_token: string;
+  target_room_name: string | null;
+  template: string;
+  extra_config: Record<string, unknown> | null;
+  subscribable: boolean;
+  allowed_groups: string[];
+  last_sent_at: string | null;
+  active: boolean;
+  created_at: string;
+  subscriber_count?: number;
+  is_subscribed?: boolean;
+}
+
+export interface NextcloudRoom {
+  token: string;
+  displayName: string;
+  type: number;
+}
+
+export interface ScheduledMessagesListResponse {
+  data: ScheduledMessageRule[];
+}
+
+export interface ScheduledMessageDetailResponse {
+  data: ScheduledMessageRule;
+}
+
+export interface RoomsResponse {
+  configured: boolean;
+  data?: NextcloudRoom[];
+}