add trips permissions

drb-frontend/lib/c2api.ts

@@ -144,6 +144,18 @@ export const c2api = {
     request(`/trips/${id}`, { method: "DELETE" }),
   updateTripTags: (id: string, available_tags: string[], overlap_tags: string[]) =>
     request<{ available_tags: string[]; overlap_tags: string[] }>(`/trips/${id}/tags`, { method: "PUT", body: JSON.stringify({ available_tags, overlap_tags }) }),
+  setTripVisibility: (id: string, visibility: "public" | "private") =>
+    request<{ visibility: string }>(`/trips/${id}/visibility`, { method: "PUT", body: JSON.stringify({ visibility }) }),
+  inviteToTrip: (id: string, discord_user_id: string) =>
+    request(`/trips/${id}/invite/${discord_user_id}`, { method: "POST" }),
+  revokeInvite: (id: string, discord_user_id: string) =>
+    request(`/trips/${id}/invite/${discord_user_id}`, { method: "DELETE" }),
+  generateLinkCode: () =>
+    request<{ code?: string; expires_minutes?: number; already_linked?: boolean; discord_user_id?: string }>("/auth/link/generate", { method: "POST" }),
+  getLinkStatus: () =>
+    request<{ linked: boolean; discord_user_id?: string; discord_username?: string; linked_at?: string }>("/auth/link/status"),
+  unlinkDiscord: () =>
+    request("/auth/link", { method: "DELETE" }),
   createTripEvent: (tripId: string, body: object) =>
     request<import("@/lib/types").TripEvent>(`/trips/${tripId}/events`, { method: "POST", body: JSON.stringify(body) }),
   updateTripEvent: (tripId: string, eventId: string, body: object) =>

drb-frontend/lib/types.ts

@@ -135,6 +135,8 @@ export interface TripRecord {
   attendees: Record<string, string>;
   available_tags: string[];
   overlap_tags: string[];
+  visibility: "public" | "private";
+  invited_discord_ids: string[];
   created_at: string;
   events?: TripEvent[];
 }