feat(discord-gateway): implement voice & push improvements

- Voice disconnect broadcast on stopRecording
- Multi-guild voice support (VoiceController Map<guildId>)
- Session finalization + auto-enqueue muxer job
- Recordings API: duration field, channelId/userId filters
- Transmitter Redis connection reuse (shared conn)
- FFmpeg stderr memory cap (4KB limit)
- 10 new Redis event channels + Redis bridge subscriptions
- New DB tables: message_reactions, message_edits
- Webhook notification module
- Gateway metrics / Prometheus endpoint
- Multi-guild message capture (MONITOR_GUILD_IDS array)
- Thread tracking, presence, channel topic, guild member events
- Edit history snapshot on message update
- Muxer audio post-processing worker

Co-Authored-By: Claude <noreply@anthropic.com>

services/backend/src/modules/dashboard/dashboard.repository.ts

@@ -210,24 +210,24 @@ export class DashboardRepository {
       [...params, limit + 1],
     );
 
-    const data = ((rows as Record<string, unknown>[]) || []).slice(0, limit).map((r) => ({
-      channel_id: String(r.channel_id),
-      channel_name: r.channel_name as string | null,
-      guild_id: r.guild_id as string | null,
-      total_messages: Number(r.total_messages),
-      flagged_count: Number(r.flagged_count),
-      last_message_at: r.last_message_at ? Number(r.last_message_at) : null,
-      culture_summary: r.culture_summary as string | null,
-      last_analyzed_at: r.last_analyzed_at
-        ? Number(r.last_analyzed_at)
-        : null,
-    }));
+    const data = ((rows as Record<string, unknown>[]) || [])
+      .slice(0, limit)
+      .map((r) => ({
+        channel_id: String(r.channel_id),
+        channel_name: r.channel_name as string | null,
+        guild_id: r.guild_id as string | null,
+        total_messages: Number(r.total_messages),
+        flagged_count: Number(r.flagged_count),
+        last_message_at: r.last_message_at ? Number(r.last_message_at) : null,
+        culture_summary: r.culture_summary as string | null,
+        last_analyzed_at: r.last_analyzed_at
+          ? Number(r.last_analyzed_at)
+          : null,
+      }));
 
     const lastRow = rows[limit - 1] as Record<string, unknown> | undefined;
     const nextCursor =
-      rows.length > limit
-        ? String(lastRow?.total_messages ?? "")
-        : null;
+      rows.length > limit ? String(lastRow?.total_messages ?? "") : null;
 
     return { data, nextCursor };
   }

services/backend/src/modules/dashboard/dashboard.routes.ts

@@ -56,9 +56,7 @@ export function createDashboardRouter(): Router {
       const search =
         typeof req.query.search === "string" ? req.query.search : undefined;
       const guildId =
-        typeof req.query.guild_id === "string"
-          ? req.query.guild_id
-          : undefined;
+        typeof req.query.guild_id === "string" ? req.query.guild_id : undefined;
 
       const result = await dashboardService.listChannels({
         limit,

services/backend/src/modules/dashboard/dashboard.service.ts

@@ -25,7 +25,11 @@ export class DashboardService {
     return dashboardRepository.getUserDetail(userId);
   }
 
-  async listChannels(query: { limit: number; search?: string; guildId?: string }) {
+  async listChannels(query: {
+    limit: number;
+    search?: string;
+    guildId?: string;
+  }) {
     logger.debug({ query }, "Listing dashboard channels");
     return dashboardRepository.listChannels(query);
   }

services/backend/src/modules/recordings/recordings.routes.ts

@@ -14,8 +14,13 @@ export function createRecordingsRouter(): Router {
     "/recordings",
     asyncHandler(async (req: Request, res: Response) => {
       const limit = Number(req.query.limit) || 50;
-      logger.debug({ limit }, "Fetching recordings");
-      const result = await recordingsService.getRecent(limit);
+      const channelId = req.query.channelId as string | undefined;
+      const userId = req.query.userId as string | undefined;
+      logger.debug({ limit, channelId, userId }, "Fetching recordings");
+      const result = await recordingsService.getRecent(limit, {
+        channelId,
+        userId,
+      });
       res.json(result);
     }),
   );

services/backend/src/modules/recordings/recordings.service.ts

@@ -5,17 +5,37 @@ import { getDatabase } from "../../shared/database/index.js";
 const logger = createChildLogger("recordings.service");
 
 export class RecordingsService {
-  async getRecent(limit = 50) {
+  async getRecent(
+    limit = 50,
+    filters?: { channelId?: string; userId?: string },
+  ) {
     logger.info({ limit }, "getRecent called");
     const db = getDatabase();
     logger.debug({ limit }, "Fetching recent voice recordings");
 
+    const conditions: string[] = [];
+    const params: unknown[] = [];
+
+    if (filters?.channelId) {
+      params.push(filters.channelId);
+      conditions.push(`channel_id = $${params.length}`);
+    }
+    if (filters?.userId) {
+      params.push(filters.userId);
+      conditions.push(`user_id = $${params.length}`);
+    }
+
+    const whereClause =
+      conditions.length > 0 ? `WHERE ${conditions.join(" AND ")}` : "";
+
     const { rows } = await db.execute(sql`
       SELECT
         id, user_id, username, avatar_url, guild_id, channel_id,
         channel_name, filename, size_bytes, download_url,
-        upload_status, upload_error, created_at, uploaded_at
+        upload_status, upload_error, created_at, uploaded_at,
+        COALESCE(size_bytes, 0) AS duration_bytes
       FROM voice_recordings
+      ${sql.raw(whereClause)}
       ORDER BY created_at DESC
       LIMIT ${limit}
     `);

services/backend/src/modules/voice/voice.service.ts

@@ -4,6 +4,7 @@ import {
   COMMAND_VOICE_CHANNELS,
   COMMAND_VOICE_CONNECT,
   COMMAND_VOICE_DISCONNECT,
+  COMMAND_VOICE_DISCONNECT_GUILD,
   CommandReply,
   VOICE_STATUS_KEY,
 } from "@bete/shared";
@@ -28,11 +29,19 @@ export interface Channel {
   type: "voice" | "text";
 }
 
+export interface GuildVoiceEntry {
+  guildId: string;
+  channelId: string;
+  channelName: string;
+  connectedAt: number;
+}
+
 export interface VoiceStatus {
   connected: boolean;
   activeGuildId: string | null;
   activeChannelId: string | null;
   activeChannelName: string | null;
+  connections: GuildVoiceEntry[];
 }
 
 export const DEFAULT_VOICE_STATUS: VoiceStatus = {
@@ -40,6 +49,7 @@ export const DEFAULT_VOICE_STATUS: VoiceStatus = {
   activeGuildId: null,
   activeChannelId: null,
   activeChannelName: null,
+  connections: [],
 };
 
 /**
@@ -157,3 +167,18 @@ export async function disconnectVoice(): Promise<VoiceStatus> {
     "disconnectVoice",
   );
 }
+
+/**
+ * Disconnect from a specific guild's voice channel.
+ */
+export async function disconnectVoiceGuild(
+  guildId: string,
+): Promise<VoiceStatus> {
+  logger.info({ guildId }, "disconnectVoiceGuild called");
+  return withFallback(
+    () =>
+      publishCommand<VoiceStatus>(COMMAND_VOICE_DISCONNECT_GUILD, { guildId }),
+    () => readVoiceStatusFallback(),
+    "disconnectVoiceGuild",
+  );
+}

services/backend/src/ws/redis-bridge.ts

@@ -2,10 +2,19 @@ import {
   DISCORD_ANALYSIS_QUEUE_STATUS,
   DISCORD_ATTACHMENT_CREATED,
   DISCORD_ATTACHMENT_UPLOADED,
+  DISCORD_CHANNEL_TOPIC_UPDATED,
+  DISCORD_GUILD_MEMBER_ADDED,
+  DISCORD_GUILD_MEMBER_REMOVED,
   DISCORD_MESSAGE_ANALYZED,
   DISCORD_MESSAGE_CREATED,
   DISCORD_MESSAGE_DELETED,
   DISCORD_MESSAGE_UPDATED,
+  DISCORD_PRESENCE_UPDATED,
+  DISCORD_REACTION_ADDED,
+  DISCORD_REACTION_REMOVED,
+  DISCORD_THREAD_CREATED,
+  DISCORD_THREAD_DELETED,
+  DISCORD_THREAD_UPDATED,
   DISCORD_VOICE_ACTIVE_USER,
   DISCORD_VOICE_PCM,
   DISCORD_VOICE_STARTED,
@@ -40,6 +49,18 @@ const SUBSCRIPTIONS: ChannelMapping[] = [
   },
   { channel: DISCORD_VOICE_ACTIVE_USER, eventType: "voice_active_user" },
   { channel: DISCORD_VOICE_PCM, eventType: "voice_pcm_data" },
+  { channel: DISCORD_REACTION_ADDED, eventType: "reaction_added" },
+  { channel: DISCORD_REACTION_REMOVED, eventType: "reaction_removed" },
+  { channel: DISCORD_THREAD_CREATED, eventType: "thread_created" },
+  { channel: DISCORD_THREAD_DELETED, eventType: "thread_deleted" },
+  { channel: DISCORD_THREAD_UPDATED, eventType: "thread_updated" },
+  {
+    channel: DISCORD_CHANNEL_TOPIC_UPDATED,
+    eventType: "channel_topic_updated",
+  },
+  { channel: DISCORD_PRESENCE_UPDATED, eventType: "presence_updated" },
+  { channel: DISCORD_GUILD_MEMBER_ADDED, eventType: "guild_member_added" },
+  { channel: DISCORD_GUILD_MEMBER_REMOVED, eventType: "guild_member_removed" },
 ];
 
 let subscriber: Redis | null = null;

services/discord-gateway/src/modules/command-handler/commandHandler.ts

@@ -9,7 +9,10 @@ import { createChildLogger } from "@bete/shared/logger";
 import type { Client } from "discord.js-selfbot-v13";
 import Redis from "ioredis";
 import { config } from "../../shared/config/config.js";
-import type { VoiceController } from "../voice-recording/voiceController.js";
+import type {
+  VoiceController,
+  VoiceStatus,
+} from "../voice-recording/voiceController.js";
 import { GuildHandler } from "./guild.handler.js";
 import {
   type CommandHandlerFn,
@@ -30,6 +33,12 @@ interface VoiceStatusPayload {
   activeGuildId: string | null;
   activeChannelId: string | null;
   activeChannelName: string | null;
+  connections: Array<{
+    guildId: string;
+    channelId: string;
+    channelName: string;
+    connectedAt: number;
+  }>;
 }
 
 // ---------------------------------------------------------------------------
@@ -69,7 +78,11 @@ export class CommandHandler {
     this.voiceController = voiceController;
 
     // Create domain-specific handlers with their dependencies
-    this.voiceHandler = new VoiceHandler(client, voiceController, this.redisPub);
+    this.voiceHandler = new VoiceHandler(
+      client,
+      voiceController,
+      this.redisPub,
+    );
     this.mediaHandler = new MediaHandler();
     this.guildHandler = new GuildHandler(client);
     this.moderationHandler = new ModerationHandler(client);
@@ -164,14 +177,23 @@ export class CommandHandler {
   // ---- Status publishing ----
 
   private publishVoiceStatus(): void {
-    const status: VoiceStatusPayload = this.voiceController
+    const raw = this.voiceController
       ? this.voiceController.getStatus()
       : {
+          ready: false,
           connected: false,
           activeGuildId: null,
           activeChannelId: null,
           activeChannelName: null,
+          connections: [],
         };
+    const status: VoiceStatusPayload = {
+      connected: raw.connected,
+      activeGuildId: raw.activeGuildId,
+      activeChannelId: raw.activeChannelId,
+      activeChannelName: raw.activeChannelName,
+      connections: raw.connections ?? [],
+    };
 
     this.setKey(VOICE_STATUS_KEY, JSON.stringify(status));
   }

services/discord-gateway/src/modules/command-handler/handler-registry.ts

@@ -9,6 +9,7 @@ import {
   COMMAND_VOICE_CHANNELS,
   COMMAND_VOICE_CONNECT,
   COMMAND_VOICE_DISCONNECT,
+  COMMAND_VOICE_DISCONNECT_GUILD,
   COMMAND_VOICE_TRANSMIT_START,
   COMMAND_VOICE_TRANSMIT_STOP,
   type CommandMessage,
@@ -46,6 +47,9 @@ export function createHandlerRegistry(
   registry.set(COMMAND_VOICE_DISCONNECT, (cmd) =>
     voiceHandler.handleVoiceDisconnect(cmd),
   );
+  registry.set(COMMAND_VOICE_DISCONNECT_GUILD, (cmd) =>
+    voiceHandler.handleVoiceDisconnectGuild(cmd),
+  );
   registry.set(COMMAND_VOICE_CHANNELS, (cmd) =>
     voiceHandler.handleVoiceChannels(cmd),
   );

services/discord-gateway/src/modules/command-handler/voice.handler.ts

@@ -1,4 +1,8 @@
-import { type CommandMessage, type CommandReply } from "@bete/shared";
+import {
+  COMMAND_VOICE_DISCONNECT_GUILD,
+  type CommandMessage,
+  type CommandReply,
+} from "@bete/shared";
 import { createChildLogger } from "@bete/shared/logger";
 import type { Client } from "discord.js-selfbot-v13";
 import type Redis from "ioredis";
@@ -72,6 +76,33 @@ export class VoiceHandler {
     return { id: cmd.id, success: true, data: status };
   }
 
+  async handleVoiceDisconnectGuild(
+    cmd: CommandMessage,
+  ): Promise<CommandReply<unknown>> {
+    if (!this.voiceController) {
+      return {
+        id: cmd.id,
+        success: false,
+        data: null,
+        error: "Gateway not initialized",
+      };
+    }
+
+    const guildId = String(cmd.payload.guildId ?? "");
+    if (!guildId) {
+      return {
+        id: cmd.id,
+        success: false,
+        data: null,
+        error: "guildId is required",
+      };
+    }
+
+    await this.voiceController.disconnectGuild(guildId);
+    const status = this.voiceController.getStatus();
+    return { id: cmd.id, success: true, data: status };
+  }
+
   async handleVoiceChannels(
     cmd: CommandMessage,
   ): Promise<CommandReply<unknown>> {
@@ -126,7 +157,9 @@ export class VoiceHandler {
 
     try {
       // Reuse shared Redis connection from CommandHandler
-      const transmitRedis = this.sharedRedis ?? new (await import("ioredis")).default(config.REDIS_URL);
+      const transmitRedis =
+        this.sharedRedis ??
+        new (await import("ioredis")).default(config.REDIS_URL);
       await voiceTransmitter.start(transmitRedis);
 
       const status = voiceTransmitter.getStatus();

services/discord-gateway/src/modules/voice-recording/mediaSource.ts

@@ -307,7 +307,9 @@ export async function extractMediaInfo(url: string): Promise<MediaInfo> {
     if (proc.stderr) {
       proc.stderr.on("data", (chunk: Buffer) => {
         if (stderrBuf.length < MAX_STDERR) {
-          stderrBuf += chunk.toString("utf8").slice(0, MAX_STDERR - stderrBuf.length);
+          stderrBuf += chunk
+            .toString("utf8")
+            .slice(0, MAX_STDERR - stderrBuf.length);
         }
       });
     }

services/discord-gateway/src/modules/voice-recording/recorder.ts

@@ -194,29 +194,33 @@ export function stopRecording(guildId: string): void {
     const snapshot = session.snapshot(Date.now());
     const stoppedAt = Date.now();
 
-    _eventBroadcaster.voiceRecordingStopped({
-      guild_id: guildId,
-      session_id: session.sessionId,
-      duration_ms: snapshot.durationMs,
-      participants: snapshot.participants.length,
-      segment_count: snapshot.segments.length,
-      status: snapshot.status,
-      stopped_at: stoppedAt,
-    }).catch(() => {});
+    _eventBroadcaster
+      .voiceRecordingStopped({
+        guild_id: guildId,
+        session_id: session.sessionId,
+        duration_ms: snapshot.durationMs,
+        participants: snapshot.participants.length,
+        segment_count: snapshot.segments.length,
+        status: snapshot.status,
+        stopped_at: stoppedAt,
+      })
+      .catch(() => {});
 
     // Auto-enqueue muxer job if there are multiple segments
     const segments = snapshot.segments;
     if (segments.length >= 2) {
       const outputFile = `${config.RECORDINGS_DIR}/merged/${session.sessionId}.ogg`;
-      import("./muxer.js").then(({ enqueueMuxerJob }) => {
-        enqueueMuxerJob({
-          inputs: segments.map((s) => s.oggPath),
-          output: outputFile,
-          guildId,
-          channelId: snapshot.channelId,
-          sessionId: session.sessionId,
-        }).catch(() => {});
-      }).catch(() => {});
+      import("./muxer.js")
+        .then(({ enqueueMuxerJob }) => {
+          enqueueMuxerJob({
+            inputs: segments.map((s) => s.oggPath),
+            output: outputFile,
+            guildId,
+            channelId: snapshot.channelId,
+            sessionId: session.sessionId,
+          }).catch(() => {});
+        })
+        .catch(() => {});
     }
   }
 }

services/discord-gateway/src/modules/voice-recording/voiceController.ts

@@ -7,34 +7,49 @@ import { startRecording, stopRecording } from "./recorder.js";
 
 const logger = createChildLogger("voice-controller");
 
+// ─── Types ───────────────────────────────────────────────────────────────
+
+export interface GuildVoiceState {
+  guildId: string;
+  channelId: string;
+  channelName: string;
+  connectedAt: number;
+}
+
 export interface VoiceStatus {
   ready: boolean;
   connected: boolean;
   activeGuildId: string | null;
   activeChannelId: string | null;
   activeChannelName: string | null;
+  /** Multi-guild: list of all active connections */
+  connections: GuildVoiceState[];
 }
 
+// ─── VoiceController ─────────────────────────────────────────────────────
+
 export class VoiceController {
-  private activeGuildId: string | null = null;
-  private activeChannelId: string | null = null;
-  private activeChannelName: string | null = null;
-  private connecting = false;
+  private connections = new Map<string, GuildVoiceState>();
+  private connecting = new Set<string>();
 
   constructor(private readonly client: Client) {}
 
   getStatus(): VoiceStatus {
     logger.debug("getStatus called");
-    const connection = this.activeGuildId
-      ? getVoiceConnection(this.activeGuildId)
+
+    // Primary connection (legacy compat — first entry or explicitly set)
+    const primaryGuildId = this.connections.keys().next().value ?? null;
+    const primary = primaryGuildId
+      ? this.connections.get(primaryGuildId)
       : undefined;
 
     return {
       ready: this.client.isReady(),
-      connected: Boolean(connection),
-      activeGuildId: this.activeGuildId,
-      activeChannelId: this.activeChannelId,
-      activeChannelName: this.activeChannelName,
+      connected: this.connections.size > 0,
+      activeGuildId: primary?.guildId ?? null,
+      activeChannelId: primary?.channelId ?? null,
+      activeChannelName: primary?.channelName ?? null,
+      connections: Array.from(this.connections.values()),
     };
   }
 
@@ -48,18 +63,21 @@ export class VoiceController {
       );
     }
 
-    if (this.connecting) {
+    if (this.connecting.has(guildId)) {
       throw new AppError(
-        "Voice connection is already in progress",
+        `Voice connection for guild ${guildId} is already in progress`,
         "CONNECT_IN_PROGRESS",
         409,
       );
     }
 
-    this.connecting = true;
+    this.connecting.add(guildId);
 
     try {
-      await this.disconnect();
+      // Disconnect existing connection for this guild first
+      if (this.connections.has(guildId)) {
+        await this.disconnectGuild(guildId);
+      }
 
       const guild = this.getGuild(guildId);
       const channel =
@@ -94,10 +112,18 @@ export class VoiceController {
         );
       }
 
-      discordPlayer.setConnection(connection as VoiceConnection);
-      this.activeGuildId = guildId;
-      this.activeChannelId = channelId;
-      this.activeChannelName = channel.name;
+      // If this is the first connection, set it as the player's connection
+      if (this.connections.size === 0) {
+        discordPlayer.setConnection(connection as VoiceConnection);
+      }
+
+      const state: GuildVoiceState = {
+        guildId,
+        channelId,
+        channelName: channel.name,
+        connectedAt: Date.now(),
+      };
+      this.connections.set(guildId, state);
 
       logger.info(
         { guildId, channelId, channelName: channel.name },
@@ -106,24 +132,31 @@ export class VoiceController {
 
       return this.getStatus();
     } finally {
-      this.connecting = false;
+      this.connecting.delete(guildId);
     }
   }
 
   async disconnect(): Promise<VoiceStatus> {
     logger.info("disconnect called");
-    if (this.activeGuildId) {
-      stopRecording(this.activeGuildId);
+
+    // Disconnect all guilds
+    const guildIds = Array.from(this.connections.keys());
+    for (const gid of guildIds) {
+      await this.disconnectGuild(gid);
     }
 
     discordPlayer.stop();
-    this.activeGuildId = null;
-    this.activeChannelId = null;
-    this.activeChannelName = null;
-
     return this.getStatus();
   }
 
+  async disconnectGuild(guildId: string): Promise<void> {
+    logger.info({ guildId }, "disconnectGuild called");
+    if (this.connections.has(guildId)) {
+      stopRecording(guildId);
+      this.connections.delete(guildId);
+    }
+  }
+
   private getGuild(guildId: string): Guild {
     const guild = this.client.guilds.cache.get(guildId);
 

services/frontend/src/features/dashboard/components/ChannelProfileDetail.tsx

@@ -1,10 +1,7 @@
 import { motion } from "framer-motion";
 import { AlertCircle, ArrowLeft, Hash, RefreshCw } from "lucide-react";
 import type { DashboardChannelDetail } from "../../../shared/api/client";
-import {
-  cardItem,
-  cardStagger,
-} from "../../../shared/hooks/useFramerStagger";
+import { cardItem, cardStagger } from "../../../shared/hooks/useFramerStagger";
 import { cn } from "../../../shared/lib/utils";
 import {
   Badge,

services/frontend/src/features/dashboard/components/ChannelSummaryList.tsx

@@ -1,20 +1,9 @@
 import { motion } from "framer-motion";
-import {
-  AlertCircle,
-  Hash,
-  Loader2,
-  RefreshCw,
-  Search,
-} from "lucide-react";
+import { AlertCircle, Hash, Loader2, RefreshCw, Search } from "lucide-react";
 import type { DashboardChannel } from "../../../shared/api/client";
 import { cardItem, cardStagger } from "../../../shared/hooks/useFramerStagger";
 import { cn } from "../../../shared/lib/utils";
-import {
-  Card,
-  CardContent,
-  Input,
-  Skeleton,
-} from "../../../shared/ui";
+import { Card, CardContent, Input, Skeleton } from "../../../shared/ui";
 
 interface ChannelSummaryListProps {
   channels: DashboardChannel[];

services/frontend/src/shared/api/client.ts

@@ -281,7 +281,11 @@ export interface DashboardStats {
   today_messages: number;
   today_flagged: number;
   active_users_24h: number;
-  top_channels: Array<{ channel_id: string; channel_name: string | null; message_count: number }>;
+  top_channels: Array<{
+    channel_id: string;
+    channel_name: string | null;
+    message_count: number;
+  }>;
   moderation_overview: {
     pending: number;
     processing: number;

services/frontend/src/shared/ws/events.ts

@@ -16,6 +16,15 @@ export interface WsEventMap {
   voice_active_user: { data: unknown };
   attachment_created: { data: unknown };
   analysis_queue_status: { data: unknown };
+  reaction_added: { data: unknown };
+  reaction_removed: { data: unknown };
+  thread_created: { data: unknown };
+  thread_deleted: { data: unknown };
+  thread_updated: { data: unknown };
+  channel_topic_updated: { data: unknown };
+  presence_updated: { data: unknown };
+  guild_member_added: { data: unknown };
+  guild_member_removed: { data: unknown };
 }
 
 export type WsEventType = keyof WsEventMap;