admin: gift granting, collectible attribute/number control, and Layer 228 moderation tools

Admin console additions (Layer 228):
- Give Gifts: dedicated tab with sorted Lottie/TGS gift picker + inline form; grant any catalog gift to a user/channel from 777000 (no charge)
- Upgraded/collectible delivery: mint a unique gift with admin-selected model/pattern/backdrop and custom number, or random/auto (DB FK + UNIQUE(gift_id,num) enforce invariants)
- SCAM/FAKE flags for users/channels (migration 0136) with configurable profile warning (TELESRV_SCAM_WARNING/TELESRV_FAKE_WARNING)
- Support toggle, force channel settings incl. gigagroup (migration 0137), username management, cosmetic color/emoji-status
- Emoji admin tab (custom emoji list + document IDs + Lottie/TGS preview)
- Bot management; soft UI / dark theme
Wired through Router -> admin.Service -> adminapi -> BFF -> React panel (en/zh/ru).

cmd/telesrv-admin/web/src/api.ts

@@ -4,6 +4,7 @@ import type {
   BotDetail,
   BotListResponse,
   ChannelDetail,
+  EmojiListResponse,
   ChannelListResponse,
   CommandResult,
   GroupMessageDetail,
@@ -60,6 +61,8 @@ export const api = {
   channel: (id: number) => request<ChannelDetail>(`/api/channels/${id}`),
   bots: (params: URLSearchParams) => request<BotListResponse>(`/api/bots?${params.toString()}`),
   bot: (id: number) => request<BotDetail>(`/api/bots/${id}`),
+  emoji: (params: URLSearchParams) => request<EmojiListResponse>(`/api/emoji?${params.toString()}`),
+  emojiAnimation: (documentID: string) => request<Record<string, unknown>>(`/api/emoji/${encodeURIComponent(documentID)}/animation`),
   messages: (params: URLSearchParams) => request<MessageListResponse>(`/api/messages?${params.toString()}`),
   message: (ownerUserID: number, msgID: number) => {
     const params = new URLSearchParams({ owner_user_id: String(ownerUserID), msg_id: String(msgID) });