feat(automod): render sticker, role & user names in moderation views

QoL lanjutan dari fix60084b3: content pesan mentah masih nampilin
snowflake (<@&roleid>, <@userid>, <:emoji:id>) di log moderasi dan
prompt LLM. Sekarang dirender ke nama yang bisa dibaca:

- Gateway capture: metadata menyimpan mentionedRoles + mentionedUsers
  (id+name) dari message.mentions, disimpan ke metadata JSON
- renderDiscordMentions(): <@&id> -> @RoleName, <@id> -> @Username,
  <:name:id> -> :name:, fallback @role/@user — dipakai di
  conversationContext (konteks LLM) dan moderationBuilders
  (getAnalysisContent) sehingga LLM lihat nama role/user beneran,
  bukan placeholder generik
- Frontend renderMessageContent() (mirror gateway) dipasang di semua
  tempat nampilin content: message-card, message-detail(-view),
  search-overlay, search-panel, users/channels section, live-stream,
  mod-queue, review list; sticker-only message tetap [Sticker: name],
  pesan teks+sticker kini ikut nampilin nama sticker
- tsc --noEmit PASS di gateway & frontend; renderDiscordMentions
  diverifikasi manual (6 kasus: role/user/emoji/unknown/plain)

services/frontend/src/app/(dashboard)/dashboard/page.tsx

@@ -31,6 +31,7 @@ export default function DashboardPage() {
     id: msg.id,
     content: msg.content || msg.id,
     username: msg.username,
+    metadata: msg.metadata ?? null,
     severity:
       msg.ai_severity && msg.ai_severity !== "none"
         ? (msg.ai_severity as ModQueueItem["severity"])

services/frontend/src/app/(dashboard)/messages/page.tsx

@@ -7,6 +7,7 @@ import { MessageList } from "@/components/messages/message-list";
 import { MessageDetailView } from "@/components/messages/message-detail-view";
 import { SearchOverlay } from "@/components/messages/search-overlay";
 import { extractFirstImage } from "@/components/messages/message-card";
+import { renderMessageContent } from "@/lib/format";
 import { SubNav } from "@/components/layout/sub-nav";
 import { ErrorState, LoadingSkeleton } from "@/components/shared";
 import { GlassCard } from "@/components/glass/card";
@@ -317,7 +318,7 @@ function ReviewList({
             <Flag className="mt-0.5 size-3.5 shrink-0 text-accent-purple" />
             <div className="min-w-0 flex-1">
               <p className="line-clamp-2 text-xs text-text-secondary">
-                {item.content || item.id}
+                {renderMessageContent(item.content, item.metadata) || item.id}
               </p>
             </div>
           </div>

services/frontend/src/components/analysis/search-panel.tsx

@@ -13,7 +13,7 @@ import { Input } from "@/components/ui/input";
 import { Progress } from "@/components/ui/progress";
 import { useReanalyze } from "@/hooks";
 import { messagesApi } from "@/lib/api";
-import { safeParseJsonArray } from "@/lib/format";
+import { renderMessageContent, safeParseJsonArray } from "@/lib/format";
 import type { MessageRecord } from "@/lib/types";
 import { cn } from "@/lib/utils";
 
@@ -100,7 +100,7 @@ export function SearchPanel() {
                             </Badge>
                           )}
                         </div>
-                        <p className="text-sm leading-relaxed">{msg.content}</p>
+                        <p className="text-sm leading-relaxed">{renderMessageContent(msg.content, msg.metadata)}</p>
                         {msg.ai_moderation_flags &&
                           msg.ai_moderation_flags !== "[]" && (
                             <div className="flex flex-wrap gap-1">

services/frontend/src/components/dashboard/channels-section.tsx

@@ -9,6 +9,7 @@ import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { useChannelDetail, useChannels } from "@/hooks";
+import { renderMessageContent } from "@/lib/format";
 import type { DashboardChannel } from "@/lib/types";
 
 export function ChannelsSection({ guildId }: { guildId?: string }) {
@@ -123,7 +124,7 @@ export function ChannelsSection({ guildId }: { guildId?: string }) {
                     className="rounded-lg border border-border/40 bg-card/40 px-3 py-2"
                   >
                     <p className="text-xs leading-relaxed text-text-secondary line-clamp-2">
-                      {msg.username}: {msg.content || "(no text content)"}
+                      {msg.username}: {renderMessageContent(msg.content, msg.metadata) || "(no text content)"}
                     </p>
                     <p className="mt-1 text-[10px] font-mono text-text-secondary/40">
                       {new Date(msg.created_at).toLocaleString()}

services/frontend/src/components/dashboard/live-stream.tsx

@@ -2,6 +2,7 @@
 
 import { useEffect, useRef, useState } from "react";
 import { GlassCard } from "@/components/glass/card";
+import { renderMessageContent } from "@/lib/format";
 import type { MessageRecord } from "@/lib/types";
 import { cn } from "@/lib/utils";
 import { useWebSocket } from "@/lib/ws/context";
@@ -13,6 +14,7 @@ interface LiveMessage {
   channelName?: string;
   timestamp: string;
   flagged?: boolean;
+  metadata?: string | null;
 }
 
 export function LiveStream() {
@@ -40,6 +42,7 @@ export function LiveStream() {
         channelName,
         timestamp: new Date().toLocaleTimeString(),
         flagged: data.ai_status === "flagged" || data.ai_status === "warn",
+        metadata: data.metadata ?? null,
       };
       setMessages((prev) => [msg, ...prev].slice(0, 50));
     });
@@ -80,7 +83,7 @@ export function LiveStream() {
                 {msg.username}
               </span>
               <span className="text-xs text-text-secondary truncate flex-1">
-                {msg.content}
+                {renderMessageContent(msg.content, msg.metadata)}
               </span>
               <span className="text-[10px] text-text-secondary/40 shrink-0">
                 {msg.timestamp}

services/frontend/src/components/dashboard/mod-queue.tsx

@@ -2,6 +2,7 @@
 
 import { AlertCircle, Check, Trash2 } from "lucide-react";
 import { GlassCard } from "@/components/glass/card";
+import { renderMessageContent } from "@/lib/format";
 import { cn } from "@/lib/utils";
 
 export interface ModQueueItem {
@@ -10,6 +11,7 @@ export interface ModQueueItem {
   username: string;
   severity: "low" | "medium" | "high" | "critical";
   reason: string;
+  metadata?: string | null;
 }
 
 export function ModQueue({ items = [] }: { items?: ModQueueItem[] }) {
@@ -56,7 +58,7 @@ export function ModQueue({ items = [] }: { items?: ModQueueItem[] }) {
                 </span>
               </div>
               <p className="text-xs text-text-secondary line-clamp-1">
-                {item.content}
+                {renderMessageContent(item.content, item.metadata)}
               </p>
               <p className="text-[10px] text-text-secondary/50">
                 {item.reason}

services/frontend/src/components/dashboard/users-section.tsx

@@ -10,6 +10,7 @@ import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { useUserDetail, useUsers } from "@/hooks";
+import { renderMessageContent } from "@/lib/format";
 import type { DashboardUser } from "@/lib/types";
 
 export function UsersSection() {
@@ -134,7 +135,7 @@ export function UsersSection() {
                     className="rounded-lg border border-border/40 bg-card/40 px-3 py-2"
                   >
                     <p className="text-xs leading-relaxed text-text-secondary line-clamp-2">
-                      {msg.content || "(no text content)"}
+                      {renderMessageContent(msg.content, msg.metadata) || "(no text content)"}
                     </p>
                     <p className="mt-1 text-[10px] font-mono text-text-secondary/40">
                       {msg.channel_id?.slice(0, 8)} ·{" "}

services/frontend/src/components/messages/message-card.tsx

@@ -6,7 +6,7 @@ import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
 import { Progress } from "@/components/ui/progress";
-import { safeParseJsonArray, getMessageChannelLabel } from "@/lib/format";
+import { safeParseJsonArray, getMessageChannelLabel, renderMessageContent } from "@/lib/format";
 import type { MessageRecord } from "@/lib/types";
 import { cn } from "@/lib/utils";
 import { AiStatusBadge } from "./ai-status-badge";
@@ -96,7 +96,7 @@ export function MessageCard({
                   "italic text-muted-foreground line-through",
               )}
             >
-              {msg.content}
+              {renderMessageContent(msg.content, msg.metadata)}
             </p>
             {(() => {
               const u = extractFirstImage(msg.metadata);

services/frontend/src/components/messages/message-detail-view.tsx

@@ -4,7 +4,7 @@ import { ArrowLeft, MessageSquare, MessagesSquare } from "lucide-react";
 import { GlassCard } from "@/components/glass/card";
 import { AttachmentsGrid } from "./attachments-grid";
 import { AiAnalysisPanel } from "./ai-analysis-panel";
-import { getMessageChannelLabel } from "@/lib/format";
+import { getMessageChannelLabel, renderMessageContent } from "@/lib/format";
 import type { AttachmentRecord, MessageRecord } from "@/lib/types";
 
 interface MessageDetailViewProps {
@@ -34,7 +34,7 @@ export function MessageDetailView({ message, attachments, onBack }: MessageDetai
 
       {/* Content */}
       <div className="text-sm text-text-primary/90 leading-relaxed mb-4 whitespace-pre-wrap">
-        {message.content || "(no text content)"}
+        {renderMessageContent(message.content, message.metadata) || "(no text content)"}
       </div>
 
       {/* Attachments */}

services/frontend/src/components/messages/message-detail.tsx

@@ -4,7 +4,7 @@ import { ArrowLeft, MessageSquare, MessagesSquare } from "lucide-react";
 import { GlassCard } from "@/components/glass/card";
 import { AttachmentsGrid } from "./attachments-grid";
 import { AiAnalysisPanel } from "./ai-analysis-panel";
-import { getMessageChannelLabel } from "@/lib/format";
+import { getMessageChannelLabel, renderMessageContent } from "@/lib/format";
 import type { AttachmentRecord, MessageRecord } from "@/lib/types";
 
 interface MessageDetailProps {
@@ -34,7 +34,7 @@ export function MessageDetail({ message, attachments, onBack }: MessageDetailPro
 
       {/* Content */}
       <div className="text-sm text-text-primary/90 leading-relaxed mb-4 whitespace-pre-wrap">
-        {message.content || "(no text content)"}
+        {renderMessageContent(message.content, message.metadata) || "(no text content)"}
       </div>
 
       {/* Attachments */}

services/frontend/src/components/messages/search-overlay.tsx

@@ -4,7 +4,7 @@ import { Search, X } from "lucide-react";
 import { useEffect, useRef, useState } from "react";
 import { useQuery } from "@tanstack/react-query";
 import { messagesApi } from "@/lib/api";
-import { getMessageChannelLabel } from "@/lib/format";
+import { getMessageChannelLabel, renderMessageContent } from "@/lib/format";
 import type { MessageRecord } from "@/lib/types";
 
 interface SearchOverlayProps {
@@ -86,7 +86,7 @@ export function SearchOverlay({ open, onClose, onSelect }: SearchOverlayProps) {
                   <span className="font-medium text-text-primary">{msg.username}</span>
                   <span className="text-text-secondary/40">{getMessageChannelLabel(msg)}</span>
                 </div>
-                <p className="text-xs text-text-secondary/80 line-clamp-1 mt-0.5">{msg.content}</p>
+                <p className="text-xs text-text-secondary/80 line-clamp-1 mt-0.5">{renderMessageContent(msg.content, msg.metadata)}</p>
               </button>
             ))
           )}

services/frontend/src/lib/format.ts

@@ -1,3 +1,5 @@
+import type { MessageMetadata } from "@/lib/types/message";
+
 /**
  * Format a number with locale separators.
  */
@@ -72,3 +74,65 @@ export function getMessageChannelLabel(msg: {
   if (channelName) return channelName;
   return msg.channel_id?.slice(0, 8) ?? "";
 }
+
+/**
+ * Render Discord mention/emoji/sticker tokens in message content to readable
+ * names using the captured metadata (mentionedRoles / mentionedUsers /
+ * customEmojis / stickers). Mirror of the gateway's renderDiscordMentions.
+ *
+ * - `<@&id>`           → `@RoleName` (falls back to `@role`)
+ * - `<@id>` / `<@!id>` → `@Username` (falls back to `@user`)
+ * - `<:name:id>`       → `:name:`    (falls back to the literal name)
+ * - sticker-only content already stored as `[Sticker: name]`; when a message
+ *   has both text and stickers, append `[Sticker: name]` so stickers always
+ *   surface in the feed.
+ */
+export function renderMessageContent(
+  content: string,
+  metadata?: string | null,
+): string {
+  if (!content) return content;
+  let m: MessageMetadata | null = null;
+  try {
+    m = JSON.parse(metadata ?? "") as MessageMetadata;
+  } catch {
+    // metadata malformed — render tokens from their literal names only
+  }
+
+  let rendered = content;
+  if (rendered.includes("<")) {
+    const roles = new Map(
+      (m?.mentionedRoles ?? []).map((r) => [r.id, r.name] as const),
+    );
+    const users = new Map(
+      (m?.mentionedUsers ?? []).map((u) => [u.id, u.username] as const),
+    );
+    const emojis = new Map(
+      (m?.customEmojis ?? []).map((e) => [e.id, e.name] as const),
+    );
+    rendered = rendered.replace(
+      /<(?:a)?:([a-zA-Z0-9_]+):(\d{17,20})>|<@!?(\d{17,20})>|<@&(\d{17,20})>/g,
+      (_full, emojiTokenName, emojiId, userId, roleId) => {
+        if (emojiId !== undefined) {
+          return `:${emojis.get(emojiId) ?? emojiTokenName}:`;
+        }
+        if (roleId !== undefined) return `@${roles.get(roleId) ?? "role"}`;
+        if (userId !== undefined) return `@${users.get(userId) ?? "user"}`;
+        return _full;
+      },
+    );
+  }
+
+  const stickers = m?.stickers ?? [];
+  if (
+    stickers.length > 0 &&
+    !rendered.includes("[Sticker:") &&
+    !rendered.includes("[Attachment:")
+  ) {
+    rendered += ` ${stickers
+      .map((s) => `[Sticker: ${s.name ?? "unknown"}]`)
+      .join(" ")}`;
+  }
+
+  return rendered;
+}

services/frontend/src/lib/types/message.ts

@@ -43,6 +43,23 @@ export interface StickerInfo {
   url?: string | null;
 }
 
+export interface CustomEmojiInfo {
+  id: string;
+  name: string;
+  animated?: boolean;
+  url?: string | null;
+}
+
+export interface MentionedRoleInfo {
+  id: string;
+  name: string;
+}
+
+export interface MentionedUserInfo {
+  id: string;
+  username: string;
+}
+
 export interface AttachmentRef {
   name: string;
   url: string;
@@ -70,6 +87,9 @@ export interface MessageMetadata {
   stickers?: StickerInfo[] | null;
   attachments?: AttachmentRef[] | null;
   embeds?: EmbedInfo[] | null;
+  customEmojis?: CustomEmojiInfo[] | null;
+  mentionedRoles?: MentionedRoleInfo[] | null;
+  mentionedUsers?: MentionedUserInfo[] | null;
   channel?: ChannelRef | null;
   reference?: ReferenceInfo | null;
 }