feat(frontend): config history and schedule rollback hooks

k-tv-frontend/lib/api.ts

@@ -17,6 +17,8 @@ import type {
   ActivityEvent,
   ProviderConfig,
   ProviderTestResult,
+  ConfigSnapshot,
+  ScheduleHistoryEntry,
 } from "@/lib/types";
 
 const API_BASE =
@@ -110,6 +112,34 @@ export const api = {
 
     delete: (id: string, token: string) =>
       request<void>(`/channels/${id}`, { method: "DELETE", token }),
+
+    listConfigHistory: (channelId: string, token: string) =>
+      request<ConfigSnapshot[]>(`/channels/${channelId}/config/history`, { token }),
+
+    patchConfigSnapshot: (channelId: string, snapId: string, label: string | null, token: string) =>
+      request<ConfigSnapshot>(`/channels/${channelId}/config/history/${snapId}`, {
+        method: "PATCH",
+        body: JSON.stringify({ label }),
+        token,
+      }),
+
+    restoreConfigSnapshot: (channelId: string, snapId: string, token: string) =>
+      request<ChannelResponse>(`/channels/${channelId}/config/history/${snapId}/restore`, {
+        method: "POST",
+        token,
+      }),
+
+    listScheduleHistory: (channelId: string, token: string) =>
+      request<ScheduleHistoryEntry[]>(`/channels/${channelId}/schedule/history`, { token }),
+
+    getScheduleGeneration: (channelId: string, genId: string, token: string) =>
+      request<ScheduleResponse>(`/channels/${channelId}/schedule/history/${genId}`, { token }),
+
+    rollbackSchedule: (channelId: string, genId: string, token: string) =>
+      request<ScheduleResponse>(`/channels/${channelId}/schedule/history/${genId}/rollback`, {
+        method: "POST",
+        token,
+      }),
   },
 
   library: {