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/components/flags.tsx

@@ -0,0 +1,59 @@
+import { ShieldAlert, ShieldX } from "lucide-react";
+import { useI18n } from "../i18n";
+import { ActionButton } from "./ActionButton";
+import { Badge } from "./ui";
+
+// ScamFakeBadges renders the SCAM/FAKE moderation labels when set.
+export function ScamFakeBadges({ scam, fake }: { scam: boolean; fake: boolean }) {
+  const { t } = useI18n();
+  if (!scam && !fake) {
+    return null;
+  }
+  return (
+    <>
+      {scam && <Badge tone="danger">{t("flags.scam")}</Badge>}
+      {fake && <Badge tone="danger">{t("flags.fake")}</Badge>}
+    </>
+  );
+}
+
+// ScamFakeActions renders the two independent toggles. The combined setter
+// receives the full desired state, so each button flips one flag and keeps the
+// other unchanged.
+export function ScamFakeActions({
+  idKey,
+  id,
+  path,
+  scam,
+  fake,
+  onDone
+}: {
+  idKey: "user_id" | "channel_id";
+  id: number;
+  path: string;
+  scam: boolean;
+  fake: boolean;
+  onDone: () => void;
+}) {
+  const { t } = useI18n();
+  return (
+    <div className="action-stack">
+      <ActionButton
+        label={scam ? t("flags.clearScam") : t("flags.setScam")}
+        icon={<ShieldAlert size={15} />}
+        tone="danger"
+        path={path}
+        payload={() => ({ [idKey]: id, scam: !scam, fake })}
+        onDone={onDone}
+      />
+      <ActionButton
+        label={fake ? t("flags.clearFake") : t("flags.setFake")}
+        icon={<ShieldX size={15} />}
+        tone="danger"
+        path={path}
+        payload={() => ({ [idKey]: id, scam, fake: !fake })}
+        onDone={onDone}
+      />
+    </div>
+  );
+}