diff --git a/apps/api-gateway/src/controllers/chat.controller.ts b/apps/api-gateway/src/controllers/chat.controller.ts
index 94018db..14fea7c 100644
--- a/apps/api-gateway/src/controllers/chat.controller.ts
+++ b/apps/api-gateway/src/controllers/chat.controller.ts
@@ -1,4 +1,4 @@
-import { Body, Controller, Get, Headers, Param, Patch, Post, Query } from '@nestjs/common';
+import { Body, Controller, Delete, Get, Headers, Param, Patch, Post, Query } from '@nestjs/common';
 import { JwtService } from '@nestjs/jwt';
 import { ApiBearerAuth, ApiOperation, ApiTags } from '@nestjs/swagger';
 import { firstValueFrom } from 'rxjs';
@@ -6,7 +6,10 @@ import { map } from 'rxjs/operators';
 import { CoreGrpcService } from '../core-grpc.service';
 import { getAuthorizedUserId } from '../document-access';
 import {
+  AddChatRoomMemberDto,
   CreateChatRoomDto,
+  EditChatMessageDto,
+  MarkRoomReadDto,
   SendChatMessageDto,
   SetRoomNotificationsMutedDto,
   UpdateChatRoomDto,
@@ -71,6 +74,28 @@ export class ChatController {
     );
   }
 
+  @Post('rooms/:roomId/members')
+  @ApiOperation({ summary: 'Добавить участника в чат' })
+  async addMember(
+    @Headers('authorization') authorization: string | undefined,
+    @Param('roomId') roomId: string,
+    @Body() dto: AddChatRoomMemberDto
+  ) {
+    const userId = await this.auth(authorization);
+    return firstValueFrom(this.core.chat.AddRoomMember({ userId, roomId, memberUserId: dto.memberUserId }));
+  }
+
+  @Delete('rooms/:roomId/members/:memberUserId')
+  @ApiOperation({ summary: 'Удалить участника из чата' })
+  async removeMember(
+    @Headers('authorization') authorization: string | undefined,
+    @Param('roomId') roomId: string,
+    @Param('memberUserId') memberUserId: string
+  ) {
+    const userId = await this.auth(authorization);
+    return firstValueFrom(this.core.chat.RemoveRoomMember({ userId, roomId, memberUserId }));
+  }
+
   @Get('rooms/:roomId/messages')
   @ApiOperation({ summary: 'Сообщения чата' })
   async listMessages(
@@ -139,4 +164,35 @@ export class ChatController {
     const userId = await this.auth(authorization);
     return firstValueFrom(this.core.chat.SetRoomNotificationsMuted({ userId, roomId, muted: dto.muted }));
   }
+
+  @Patch('messages/:messageId')
+  @ApiOperation({ summary: 'Редактировать сообщение' })
+  async editMessage(
+    @Headers('authorization') authorization: string | undefined,
+    @Param('messageId') messageId: string,
+    @Body() dto: EditChatMessageDto
+  ) {
+    const userId = await this.auth(authorization);
+    return firstValueFrom(this.core.chat.EditMessage({ userId, messageId, content: dto.content }));
+  }
+
+  @Delete('messages/:messageId')
+  @ApiOperation({ summary: 'Удалить сообщение' })
+  async deleteMessage(@Headers('authorization') authorization: string | undefined, @Param('messageId') messageId: string) {
+    const userId = await this.auth(authorization);
+    return firstValueFrom(this.core.chat.DeleteMessage({ userId, messageId }));
+  }
+
+  @Post('rooms/:roomId/read')
+  @ApiOperation({ summary: 'Отметить сообщения чата прочитанными' })
+  async markRoomRead(
+    @Headers('authorization') authorization: string | undefined,
+    @Param('roomId') roomId: string,
+    @Body() dto: MarkRoomReadDto
+  ) {
+    const userId = await this.auth(authorization);
+    return firstValueFrom(
+      this.core.chat.MarkRoomRead({ userId, roomId, lastMessageId: dto.lastMessageId })
+    );
+  }
 }
diff --git a/apps/api-gateway/src/controllers/family.controller.ts b/apps/api-gateway/src/controllers/family.controller.ts
index cb5814b..760093e 100644
--- a/apps/api-gateway/src/controllers/family.controller.ts
+++ b/apps/api-gateway/src/controllers/family.controller.ts
@@ -144,5 +144,12 @@ export class FamilyController {
     const userId = await this.auth(authorization);
     return firstValueFrom(this.core.family.RespondFamilyInvite({ userId, inviteId, accept: dto.accept }));
   }
+
+  @Get('groups/:groupId/presence')
+  @ApiOperation({ summary: 'Онлайн-статус участников семьи' })
+  async getPresence(@Headers('authorization') authorization: string | undefined, @Param('groupId') groupId: string) {
+    const requesterId = await this.auth(authorization);
+    return firstValueFrom(this.core.family.GetFamilyPresence({ requesterId, groupId }));
+  }
 }
 
diff --git a/apps/api-gateway/src/controllers/media.controller.ts b/apps/api-gateway/src/controllers/media.controller.ts
index ce486c5..1a31d05 100644
--- a/apps/api-gateway/src/controllers/media.controller.ts
+++ b/apps/api-gateway/src/controllers/media.controller.ts
@@ -256,4 +256,37 @@ export class MediaController {
       this.core.media.GetChatMediaAccessUrl({ requesterId, roomId, storageKey, fileName })
     );
   }
+
+  @Post('chat/:roomId/avatar/upload-url')
+  @ApiBearerAuth()
+  async createChatRoomAvatarUploadUrl(
+    @Headers('authorization') authorization: string | undefined,
+    @Param('roomId') roomId: string,
+    @Body() dto: AvatarUploadDto
+  ) {
+    const requesterId = await this.authUserId(authorization);
+    return firstValueFrom(
+      this.core.media.CreateChatRoomAvatarUploadUrl({ requesterId, roomId, contentType: dto.contentType })
+    );
+  }
+
+  @Post('chat/:roomId/avatar/confirm')
+  @ApiBearerAuth()
+  async confirmChatRoomAvatar(
+    @Headers('authorization') authorization: string | undefined,
+    @Param('roomId') roomId: string,
+    @Body() dto: ConfirmAvatarDto
+  ) {
+    const requesterId = await this.authUserId(authorization);
+    return firstValueFrom(
+      this.core.media.ConfirmChatRoomAvatar({ requesterId, roomId, storageKey: dto.storageKey })
+    );
+  }
+
+  @Get('chat/:roomId/avatar/url')
+  @ApiBearerAuth()
+  async getChatRoomAvatarUrl(@Headers('authorization') authorization: string | undefined, @Param('roomId') roomId: string) {
+    const requesterId = await this.authUserId(authorization);
+    return firstValueFrom(this.core.media.GetChatRoomAvatarAccessUrl({ requesterId, roomId }));
+  }
 }
diff --git a/apps/api-gateway/src/dto/chat.dto.ts b/apps/api-gateway/src/dto/chat.dto.ts
index 923483a..9ba4441 100644
--- a/apps/api-gateway/src/dto/chat.dto.ts
+++ b/apps/api-gateway/src/dto/chat.dto.ts
@@ -66,3 +66,20 @@ export class SetRoomNotificationsMutedDto {
   @IsBoolean()
   muted!: boolean;
 }
+
+export class AddChatRoomMemberDto {
+  @IsString()
+  memberUserId!: string;
+}
+
+export class EditChatMessageDto {
+  @IsString()
+  @MinLength(1)
+  content!: string;
+}
+
+export class MarkRoomReadDto {
+  @IsOptional()
+  @IsString()
+  lastMessageId?: string;
+}
diff --git a/apps/frontend/components/chat/voice-message-player.tsx b/apps/frontend/components/chat/voice-message-player.tsx
new file mode 100644
index 0000000..20e4b25
--- /dev/null
+++ b/apps/frontend/components/chat/voice-message-player.tsx
@@ -0,0 +1,168 @@
+'use client';
+
+import { useEffect, useMemo, useRef, useState } from 'react';
+import { Loader2, Pause, Play } from 'lucide-react';
+import { cn } from '@/lib/utils';
+
+function seedWaveform(seed: string, count = 36) {
+  let hash = 0;
+  for (let index = 0; index < seed.length; index += 1) {
+    hash = (hash * 31 + seed.charCodeAt(index)) | 0;
+  }
+  return Array.from({ length: count }, (_, index) => {
+    const wave = Math.abs(Math.sin((hash + 1) * (index + 1) * 0.17));
+    return 0.25 + wave * 0.75;
+  });
+}
+
+function formatDuration(seconds: number) {
+  if (!Number.isFinite(seconds) || seconds <= 0) return '0:00';
+  const whole = Math.floor(seconds);
+  const mins = Math.floor(whole / 60);
+  const secs = whole % 60;
+  return `${mins}:${secs.toString().padStart(2, '0')}`;
+}
+
+export function VoiceMessagePlayer({
+  src,
+  seed,
+  durationMs,
+  variant = 'theirs'
+}: {
+  src?: string;
+  seed: string;
+  durationMs?: number;
+  variant?: 'mine' | 'theirs';
+}) {
+  const audioRef = useRef<HTMLAudioElement | null>(null);
+  const [playing, setPlaying] = useState(false);
+  const [loading, setLoading] = useState(false);
+  const [progress, setProgress] = useState(0);
+  const [duration, setDuration] = useState(durationMs ? durationMs / 1000 : 0);
+  const bars = useMemo(() => seedWaveform(seed), [seed]);
+
+  useEffect(() => {
+    const audio = new Audio();
+    audio.preload = 'metadata';
+    audioRef.current = audio;
+
+    const onLoaded = () => {
+      if (Number.isFinite(audio.duration) && audio.duration > 0) {
+        setDuration(audio.duration);
+      }
+      setLoading(false);
+    };
+    const onTimeUpdate = () => {
+      if (!audio.duration) return;
+      setProgress(audio.currentTime / audio.duration);
+    };
+    const onEnded = () => {
+      setPlaying(false);
+      setProgress(0);
+      audio.currentTime = 0;
+    };
+    const onWaiting = () => setLoading(true);
+    const onCanPlay = () => setLoading(false);
+    const onError = () => {
+      setLoading(false);
+      setPlaying(false);
+    };
+
+    audio.addEventListener('loadedmetadata', onLoaded);
+    audio.addEventListener('timeupdate', onTimeUpdate);
+    audio.addEventListener('ended', onEnded);
+    audio.addEventListener('waiting', onWaiting);
+    audio.addEventListener('canplay', onCanPlay);
+    audio.addEventListener('error', onError);
+
+    return () => {
+      audio.pause();
+      audio.removeEventListener('loadedmetadata', onLoaded);
+      audio.removeEventListener('timeupdate', onTimeUpdate);
+      audio.removeEventListener('ended', onEnded);
+      audio.removeEventListener('waiting', onWaiting);
+      audio.removeEventListener('canplay', onCanPlay);
+      audio.removeEventListener('error', onError);
+      audioRef.current = null;
+    };
+  }, []);
+
+  useEffect(() => {
+    const audio = audioRef.current;
+    if (!audio || !src) return;
+    setLoading(true);
+    audio.src = src;
+    audio.load();
+  }, [src]);
+
+  async function togglePlayback() {
+    const audio = audioRef.current;
+    if (!audio || !src) return;
+
+    if (playing) {
+      audio.pause();
+      setPlaying(false);
+      return;
+    }
+
+    try {
+      setLoading(true);
+      await audio.play();
+      setPlaying(true);
+    } catch {
+      setPlaying(false);
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  function seekTo(ratio: number) {
+    const audio = audioRef.current;
+    if (!audio || !audio.duration) return;
+    const next = Math.min(Math.max(ratio, 0), 1);
+    audio.currentTime = next * audio.duration;
+    setProgress(next);
+  }
+
+  const accent = variant === 'mine' ? 'bg-[#5bb85d]' : 'bg-[#3390ec]';
+  const accentSoft = variant === 'mine' ? 'bg-[#5bb85d]/25' : 'bg-[#3390ec]/25';
+  const remaining = duration * (1 - progress);
+
+  return (
+    <div className="flex min-w-[240px] max-w-[320px] items-center gap-3 py-1">
+      <button
+        type="button"
+        disabled={!src}
+        onClick={() => void togglePlayback()}
+        className={cn(
+          'flex h-10 w-10 shrink-0 items-center justify-center rounded-full text-white transition hover:opacity-90 disabled:opacity-50',
+          accent
+        )}
+        aria-label={playing ? 'Пауза' : 'Воспроизвести'}
+      >
+        {loading ? <Loader2 className="h-4 w-4 animate-spin" /> : playing ? <Pause className="h-4 w-4" /> : <Play className="ml-0.5 h-4 w-4" />}
+      </button>
+
+      <button type="button" className="flex h-10 flex-1 items-end gap-[2px]" onClick={(event) => {
+        const rect = event.currentTarget.getBoundingClientRect();
+        seekTo((event.clientX - rect.left) / rect.width);
+      }}>
+        {bars.map((height, index) => {
+          const barProgress = (index + 1) / bars.length;
+          const active = barProgress <= progress;
+          return (
+            <span
+              key={`${seed}-${index}`}
+              className={cn('w-[3px] rounded-full transition-colors', active ? accent : accentSoft)}
+              style={{ height: `${Math.round(height * 28 + 8)}px` }}
+            />
+          );
+        })}
+      </button>
+
+      <span className="w-10 shrink-0 text-right text-[11px] tabular-nums text-[#667085]">
+        {formatDuration(playing || progress > 0 ? remaining : duration)}
+      </span>
+    </div>
+  );
+}
diff --git a/apps/frontend/components/family/family-group-view.tsx b/apps/frontend/components/family/family-group-view.tsx
index ab574d8..b533405 100644
--- a/apps/frontend/components/family/family-group-view.tsx
+++ b/apps/frontend/components/family/family-group-view.tsx
@@ -6,36 +6,57 @@ import {
   ArrowLeft,
   BarChart3,
   Camera,
+  Check,
+  CheckCheck,
   FileText,
   Loader2,
   Mic,
+  MoreVertical,
   Paperclip,
+  Pencil,
   Plus,
   Send,
   Smile,
+  Trash2,
   UserPlus,
+  Users,
   Volume2,
   VolumeX
 } from 'lucide-react';
+import { VoiceMessagePlayer } from '@/components/chat/voice-message-player';
 import { useAuth } from '@/components/id/auth-provider';
 import { useToast } from '@/components/id/toast-provider';
 import { useRealtime } from '@/components/notifications/realtime-provider';
 import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
 import { Button } from '@/components/ui/button';
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog';
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger
+} from '@/components/ui/dropdown-menu';
 import { Input } from '@/components/ui/input';
 import { useRequireAuth } from '@/hooks/use-require-auth';
 import {
+  addChatRoomMember,
   apiFetch,
   ChatMessage,
   ChatRoom,
   createChatRoom,
+  deleteChatMessage,
+  editChatMessage,
   FamilyGroup,
   FamilyInviteCandidate,
+  FamilyPresenceMember,
   fetchChatMessages,
   fetchChatRooms,
   fetchFamilyGroup,
+  fetchFamilyPresence,
   getApiErrorMessage,
+  markChatRoomRead,
+  removeChatRoomMember,
+  removeFamilyMember,
   searchFamilyInviteUsers,
   sendChatMessage,
   sendFamilyInvite,
@@ -74,12 +95,54 @@ interface LoadedChatMedia {
   blobUrl: string;
   expiresAt: number;
   fileName?: string;
+  mimeType?: string;
 }
 
 function formatMessageTime(value: string) {
   return new Intl.DateTimeFormat('ru-RU', { hour: '2-digit', minute: '2-digit' }).format(new Date(value));
 }
 
+function formatLastSeen(value?: string) {
+  if (!value) return 'Не в сети';
+  const date = new Date(value);
+  const now = new Date();
+  const diffMs = now.getTime() - date.getTime();
+  const diffMinutes = Math.floor(diffMs / 60_000);
+  if (diffMinutes < 1) return 'был(а) только что';
+  if (diffMinutes < 60) return `был(а) ${diffMinutes} мин. назад`;
+  const diffHours = Math.floor(diffMinutes / 60);
+  if (diffHours < 24) return `был(а) ${diffHours} ч. назад`;
+  return new Intl.DateTimeFormat('ru-RU', { day: 'numeric', month: 'short', hour: '2-digit', minute: '2-digit' }).format(date);
+}
+
+function formatPresenceStatus(member: FamilyPresenceMember) {
+  if (member.online) return 'В сети';
+  return formatLastSeen(member.lastSeenAt);
+}
+
+function messagePreview(message?: ChatMessage) {
+  if (!message) return '';
+  if (message.isDeleted) return 'Сообщение удалено';
+  if (message.type === 'POLL') return '📊 Опрос';
+  if (message.type === 'VOICE') return '🎤 Голосовое';
+  if (message.type === 'AUDIO') return '🎵 Аудио';
+  if (message.type === 'IMAGE') return '📷 Фото';
+  if (message.type === 'FILE') return '📄 Файл';
+  return message.content ?? '';
+}
+
+function OnlineDot({ online, className }: { online?: boolean; className?: string }) {
+  if (!online) return null;
+  return (
+    <span
+      className={cn(
+        'absolute bottom-0 right-0 h-3 w-3 rounded-full border-2 border-white bg-emerald-500 shadow-sm',
+        className
+      )}
+    />
+  );
+}
+
 function FamilyAvatar({ groupId, name, hasAvatar, token }: { groupId: string; name: string; hasAvatar?: boolean; token: string | null }) {
   const [url, setUrl] = useState<string | null>(null);
   useEffect(() => {
@@ -96,12 +159,38 @@ function FamilyAvatar({ groupId, name, hasAvatar, token }: { groupId: string; na
   );
 }
 
+function ChatRoomAvatar({ roomId, name, hasAvatar, token }: { roomId: string; name: string; hasAvatar?: boolean; token: string | null }) {
+  const [url, setUrl] = useState<string | null>(null);
+  useEffect(() => {
+    if (!hasAvatar || !token) return;
+    apiFetch<{ accessUrl: string }>(`/media/chat/${roomId}/avatar/url`, {}, token)
+      .then((response) => setUrl(response.accessUrl))
+      .catch(() => setUrl(null));
+  }, [hasAvatar, roomId, token]);
+  return (
+    <Avatar className="h-11 w-11">
+      {url ? <AvatarImage src={url} alt={name} /> : null}
+      <AvatarFallback>{name.slice(0, 2).toUpperCase()}</AvatarFallback>
+    </Avatar>
+  );
+}
+
+function memberRoleLabel(member: { familyRole?: string; isChatCreator?: boolean }) {
+  if (member.familyRole === 'owner') return 'Создатель семьи';
+  if (member.isChatCreator) return 'Создатель чата';
+  return 'Участник';
+}
+
+function familyMemberRoleLabel(role: string) {
+  return role === 'owner' ? 'Создатель семьи' : 'Участник';
+}
+
 export function FamilyGroupView({ groupId }: { groupId: string }) {
   const router = useRouter();
   const { user, token } = useAuth();
   const { isReady, isPinLocked } = useRequireAuth();
   const { showToast } = useToast();
-  const { subscribe } = useRealtime();
+  const { subscribe, connected } = useRealtime();
 
   const [group, setGroup] = useState<FamilyGroup | null>(null);
   const [rooms, setRooms] = useState<ChatRoom[]>([]);
@@ -113,6 +202,9 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
   const [inviteOpen, setInviteOpen] = useState(false);
   const [createRoomOpen, setCreateRoomOpen] = useState(false);
   const [pollOpen, setPollOpen] = useState(false);
+  const [membersOpen, setMembersOpen] = useState(false);
+  const [familyMembersOpen, setFamilyMembersOpen] = useState(false);
+  const [addMembersOpen, setAddMembersOpen] = useState(false);
   const [inviteQuery, setInviteQuery] = useState('');
   const [inviteResults, setInviteResults] = useState<FamilyInviteCandidate[]>([]);
   const [selectedInviteUser, setSelectedInviteUser] = useState<FamilyInviteCandidate | null>(null);
@@ -126,12 +218,17 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
   const [recording, setRecording] = useState(false);
   const [mediaUrls, setMediaUrls] = useState<Record<string, LoadedChatMedia>>({});
   const [downloadingKey, setDownloadingKey] = useState<string | null>(null);
+  const [editingMessageId, setEditingMessageId] = useState<string | null>(null);
+  const [editDraft, setEditDraft] = useState('');
+  const [presenceMembers, setPresenceMembers] = useState<FamilyPresenceMember[]>([]);
 
   const messagesEndRef = useRef<HTMLDivElement>(null);
+  const readReceiptTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
   const mediaRecorderRef = useRef<MediaRecorder | null>(null);
   const recordingStartedAtRef = useRef<number | null>(null);
   const mediaUrlsRef = useRef<Record<string, LoadedChatMedia>>({});
   const avatarInputRef = useRef<HTMLInputElement>(null);
+  const roomAvatarInputRef = useRef<HTMLInputElement>(null);
   const fileInputRef = useRef<HTMLInputElement>(null);
 
   useEffect(() => {
@@ -144,6 +241,20 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
 
   const activeRoom = useMemo(() => rooms.find((room) => room.id === activeRoomId) ?? null, [activeRoomId, rooms]);
   const myMembership = activeRoom?.members.find((member) => member.userId === user?.id);
+  const isFamilyOwner = group?.ownerId === user?.id;
+  const isChatCreator = activeRoom?.createdById === user?.id;
+  const canManageChatMembers = Boolean(isFamilyOwner || isChatCreator);
+  const familyMembersNotInRoom = useMemo(() => {
+    if (!group?.members || !activeRoom) return [];
+    const inRoom = new Set(activeRoom.members.map((member) => member.userId));
+    return group.members.filter((member) => !inRoom.has(member.userId));
+  }, [activeRoom, group?.members]);
+
+  const presenceByUserId = useMemo(
+    () => new Map(presenceMembers.map((member) => [member.userId, member])),
+    [presenceMembers]
+  );
+  const onlineCount = useMemo(() => presenceMembers.filter((member) => member.online).length, [presenceMembers]);
 
   const loadGroup = useCallback(async () => {
     if (!token || isPinLocked) return;
@@ -161,34 +272,85 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
     setMessages(response.messages ?? []);
   }, [isPinLocked, token]);
 
+  const loadPresence = useCallback(async () => {
+    if (!token || isPinLocked) return;
+    try {
+      const response = await fetchFamilyPresence(groupId, token);
+      setPresenceMembers(response.members ?? []);
+    } catch {
+      // ignore background presence errors
+    }
+  }, [groupId, isPinLocked, token]);
+
   useEffect(() => {
     if (!isReady || !token || isPinLocked) return;
     setLoading(true);
     loadGroup()
       .catch((error) => showToast(getApiErrorMessage(error, 'Не удалось загрузить семью') ?? 'Ошибка'))
       .finally(() => setLoading(false));
-  }, [isPinLocked, isReady, loadGroup, showToast, token]);
+    void loadPresence();
+  }, [isPinLocked, isReady, loadGroup, loadPresence, showToast, token]);
+
+  useEffect(() => {
+    if (!token || isPinLocked) return;
+    void loadPresence();
+    const timer = window.setInterval(() => void loadPresence(), 25_000);
+    return () => window.clearInterval(timer);
+  }, [connected, isPinLocked, loadPresence, token]);
 
   useEffect(() => {
     if (!activeRoomId) return;
     void loadMessages(activeRoomId);
+    setEditingMessageId(null);
+    setEditDraft('');
   }, [activeRoomId, loadMessages]);
 
+  useEffect(() => {
+    if (!activeRoomId || !token || !messages.length) return;
+    const timer = window.setTimeout(() => {
+      const last = messages[messages.length - 1];
+      void markChatRoomRead(activeRoomId, last.id, token).catch(() => {});
+    }, 500);
+    return () => window.clearTimeout(timer);
+  }, [activeRoomId, messages, token]);
+
   useEffect(() => {
     messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' });
   }, [messages]);
 
   useEffect(() => {
     return subscribe((event) => {
-      if (event.type !== 'chat_message') return;
       const payload = event.payload;
-      if (!payload?.roomId || payload.roomId !== activeRoomId) return;
-      if (payload.message) {
-        appendMessage(payload.message);
-      } else {
-        void loadMessages(activeRoomId!);
+      if (payload?.roomId && payload.roomId !== activeRoomId) {
+        if (event.type === 'chat_message') void loadGroup();
+        return;
+      }
+
+      if (event.type === 'chat_message') {
+        if (payload?.message) {
+          appendMessage(payload.message);
+        } else if (activeRoomId) {
+          void loadMessages(activeRoomId);
+        }
+        void loadGroup();
+        return;
+      }
+
+      if (event.type === 'chat_message_updated' || event.type === 'chat_message_deleted') {
+        const updated = payload?.message;
+        if (updated) {
+          setMessages((current) => current.map((item) => (item.id === updated.id ? updated : item)));
+        } else if (activeRoomId) {
+          void loadMessages(activeRoomId);
+        }
+        void loadGroup();
+        return;
+      }
+
+      if (event.type === 'chat_read_receipt' && activeRoomId) {
+        if (readReceiptTimerRef.current) clearTimeout(readReceiptTimerRef.current);
+        readReceiptTimerRef.current = setTimeout(() => void loadMessages(activeRoomId), 400);
       }
-      void loadGroup();
     });
   }, [activeRoomId, appendMessage, loadGroup, loadMessages, subscribe]);
 
@@ -201,6 +363,7 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
 
       const meta = parseMessageMetadata(message.metadataJson);
       const fileName = meta.fileName || message.content || undefined;
+      const mimeType = message.mimeType || (message.type === 'VOICE' ? 'audio/webm' : message.type === 'AUDIO' ? 'audio/mpeg' : undefined);
       const query = new URLSearchParams({ storageKey });
       if (fileName) query.set('fileName', fileName);
 
@@ -210,7 +373,7 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
           {},
           token
         );
-        const blob = await fetchAuthenticatedMediaBlob(access.accessUrl, token);
+        const blob = await fetchAuthenticatedMediaBlob(access.accessUrl, token, mimeType);
         const blobUrl = createBlobObjectUrl(blob);
         setMediaUrls((current) => {
           revokeBlobObjectUrl(current[storageKey]?.blobUrl);
@@ -219,7 +382,8 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
             [storageKey]: {
               blobUrl,
               expiresAt: mediaExpiresAtMs(access.expiresAt),
-              fileName
+              fileName,
+              mimeType
             }
           };
         });
@@ -289,6 +453,70 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
     }
   }
 
+  async function uploadRoomAvatar(file: File) {
+    if (!token || !activeRoomId) return;
+    try {
+      const presigned = await apiFetch<PresignedUploadResponse>(
+        `/media/chat/${activeRoomId}/avatar/upload-url`,
+        { method: 'POST', body: JSON.stringify({ contentType: file.type }) },
+        token
+      );
+      await uploadMediaObject(presigned, file, file.type);
+      await apiFetch(`/media/chat/${activeRoomId}/avatar/confirm`, {
+        method: 'POST',
+        body: JSON.stringify({ storageKey: presigned.storageKey })
+      }, token);
+      await loadGroup();
+      showToast('Фото чата обновлено');
+    } catch (error) {
+      showToast(getApiErrorMessage(error, 'Не удалось загрузить фото чата') ?? 'Ошибка');
+    }
+  }
+
+  function applyRoomUpdate(room: ChatRoom) {
+    setRooms((current) => current.map((item) => (item.id === room.id ? room : item)));
+  }
+
+  async function handleAddRoomMember(memberUserId: string) {
+    if (!token || !activeRoomId) return;
+    try {
+      const room = await addChatRoomMember(activeRoomId, memberUserId, token);
+      applyRoomUpdate(room);
+      setAddMembersOpen(false);
+      showToast('Участник добавлен в чат');
+    } catch (error) {
+      showToast(getApiErrorMessage(error, 'Не удалось добавить участника') ?? 'Ошибка');
+    }
+  }
+
+  async function handleRemoveFromChat(memberUserId: string) {
+    if (!token || !activeRoomId) return;
+    try {
+      const room = await removeChatRoomMember(activeRoomId, memberUserId, token);
+      applyRoomUpdate(room);
+      if (memberUserId === user?.id) {
+        setActiveRoomId(null);
+        setMembersOpen(false);
+      }
+      showToast('Участник удалён из чата');
+    } catch (error) {
+      showToast(getApiErrorMessage(error, 'Не удалось удалить участника из чата') ?? 'Ошибка');
+    }
+  }
+
+  async function handleRemoveFromFamily(memberId: string) {
+    if (!token) return;
+    try {
+      await removeFamilyMember(memberId, token);
+      await loadGroup();
+      setMembersOpen(false);
+      setFamilyMembersOpen(false);
+      showToast('Участник удалён из семьи');
+    } catch (error) {
+      showToast(getApiErrorMessage(error, 'Не удалось удалить участника из семьи') ?? 'Ошибка');
+    }
+  }
+
   async function saveRename() {
     if (!token || !renameValue.trim()) return;
     try {
@@ -368,6 +596,51 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
     }
   }
 
+  async function startEditMessage(message: ChatMessage) {
+    if (message.isDeleted) return;
+    setEditingMessageId(message.id);
+    setEditDraft(message.content ?? '');
+  }
+
+  async function submitEditMessage() {
+    if (!token || !editingMessageId) return;
+    const content = editDraft.trim();
+    if (!content) {
+      showToast('Сообщение не может быть пустым');
+      return;
+    }
+    setSending(true);
+    try {
+      const updated = await editChatMessage(editingMessageId, content, token);
+      setMessages((current) => current.map((item) => (item.id === updated.id ? updated : item)));
+      setEditingMessageId(null);
+      setEditDraft('');
+      void loadGroup();
+    } catch (error) {
+      showToast(getApiErrorMessage(error, 'Не удалось изменить сообщение') ?? 'Ошибка');
+    } finally {
+      setSending(false);
+    }
+  }
+
+  async function handleDeleteMessage(messageId: string) {
+    if (!token) return;
+    setSending(true);
+    try {
+      const updated = await deleteChatMessage(messageId, token);
+      setMessages((current) => current.map((item) => (item.id === updated.id ? updated : item)));
+      if (editingMessageId === messageId) {
+        setEditingMessageId(null);
+        setEditDraft('');
+      }
+      void loadGroup();
+    } catch (error) {
+      showToast(getApiErrorMessage(error, 'Не удалось удалить сообщение') ?? 'Ошибка');
+    } finally {
+      setSending(false);
+    }
+  }
+
   async function sendText(type: string = 'TEXT') {
     if (!token || !activeRoomId || sending) return;
     const content = draft.trim();
@@ -544,6 +817,22 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
               <Camera className="h-4 w-4" />
             </Button>
           </div>
+          <button
+            type="button"
+            onClick={() => setFamilyMembersOpen(true)}
+            className="mt-3 flex w-full items-center gap-3 rounded-2xl bg-[#f4f5f8] px-3 py-3 text-left transition hover:bg-[#eceef4]"
+          >
+            <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-full bg-[#3390ec]/10 text-[#3390ec]">
+              <Users className="h-5 w-5" />
+            </div>
+            <div className="min-w-0 flex-1">
+              <p className="text-sm font-medium">Участники семьи</p>
+              <p className="text-xs text-[#667085]">
+                {onlineCount > 0 ? `${onlineCount} в сети · ` : ''}
+                {group?.members?.length ?? 0} человек
+              </p>
+            </div>
+          </button>
         </div>
         <div className="flex items-center justify-between px-4 py-3">
           <p className="text-sm font-semibold text-[#667085]">Чаты</p>
@@ -562,9 +851,7 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
                 activeRoomId === room.id && 'bg-[#3390ec]/10'
               )}
             >
-              <div className="flex h-11 w-11 shrink-0 items-center justify-center rounded-full bg-[#3390ec] text-sm font-semibold text-white">
-                {room.name.slice(0, 2).toUpperCase()}
-              </div>
+              <ChatRoomAvatar roomId={room.id} name={room.name} hasAvatar={room.hasAvatar} token={token} />
               <div className="min-w-0 flex-1">
                 <div className="flex items-center justify-between gap-2">
                   <p className="truncate font-medium">{room.name}</p>
@@ -573,7 +860,7 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
                   ) : null}
                 </div>
                 <p className="truncate text-sm text-[#667085]">
-                  {room.lastMessage?.content ?? (room.type === 'GENERAL' ? 'Общий чат семьи' : 'Нет сообщений')}
+                  {messagePreview(room.lastMessage) || (room.type === 'GENERAL' ? 'Общий чат семьи' : 'Нет сообщений')}
                 </p>
               </div>
             </button>
@@ -585,28 +872,105 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
         {activeRoom ? (
           <>
             <div className="flex items-center justify-between border-b border-[#dce3ec] bg-white px-4 py-3">
-              <div>
-                <h2 className="font-semibold">{activeRoom.name}</h2>
-                <p className="text-xs text-[#667085]">{activeRoom.members.length} участников</p>
+              <button type="button" className="flex min-w-0 items-center gap-3 text-left" onClick={() => setMembersOpen(true)}>
+                <div className="shrink-0 overflow-hidden rounded-full">
+                  <ChatRoomAvatar roomId={activeRoom.id} name={activeRoom.name} hasAvatar={activeRoom.hasAvatar} token={token} />
+                </div>
+                <div className="min-w-0">
+                  <h2 className="font-semibold">{activeRoom.name}</h2>
+                  <p className="text-xs text-[#667085]">
+                    {onlineCount > 0 ? (
+                      <span className="text-emerald-600">{onlineCount} в сети</span>
+                    ) : (
+                      'Никого нет в сети'
+                    )}
+                    {' · '}
+                    {activeRoom.members.length} участников
+                  </p>
+                </div>
+              </button>
+              <div className="flex items-center gap-2">
+                {activeRoom.type === 'GROUP' ? (
+                  <Button size="sm" variant="secondary" className="rounded-xl" onClick={() => roomAvatarInputRef.current?.click()}>
+                    <Camera className="h-4 w-4" />
+                  </Button>
+                ) : null}
+                <Button size="sm" variant="secondary" className="rounded-xl" onClick={() => setMembersOpen(true)}>
+                  <Users className="h-4 w-4" />
+                </Button>
+                <Button size="sm" variant="secondary" className="rounded-xl" onClick={() => void toggleMute()}>
+                  {myMembership?.notificationsMuted ? <VolumeX className="h-4 w-4" /> : <Volume2 className="h-4 w-4" />}
+                </Button>
               </div>
-              <Button size="sm" variant="secondary" className="rounded-xl" onClick={() => void toggleMute()}>
-                {myMembership?.notificationsMuted ? <VolumeX className="h-4 w-4" /> : <Volume2 className="h-4 w-4" />}
-              </Button>
             </div>
 
             <div className="flex-1 space-y-2 overflow-y-auto px-4 py-4">
               {messages.map((message) => {
                 const mine = message.senderId === user?.id;
+                const isEditing = editingMessageId === message.id;
+                const canEdit = mine && !message.isDeleted && (message.type === 'TEXT' || message.type === 'EMOJI');
                 return (
-                  <div key={message.id} className={cn('flex', mine ? 'justify-end' : 'justify-start')}>
+                  <div key={message.id} className={cn('group flex', mine ? 'justify-end' : 'justify-start')}>
                     <div
                       className={cn(
-                        'max-w-[78%] rounded-[18px] px-3 py-2 shadow-sm',
-                        mine ? 'rounded-br-md bg-[#effdde] text-[#1f2430]' : 'rounded-bl-md bg-white text-[#1f2430]'
+                        'relative max-w-[78%] rounded-[18px] px-3 py-2 shadow-sm',
+                        mine ? 'rounded-br-md bg-[#effdde] text-[#1f2430]' : 'rounded-bl-md bg-white text-[#1f2430]',
+                        message.isDeleted && 'bg-[#eef1f6]/90 text-[#667085] italic'
                       )}
                     >
+                      {canEdit ? (
+                        <DropdownMenu>
+                          <DropdownMenuTrigger asChild>
+                            <button
+                              type="button"
+                              className={cn(
+                                'absolute -right-2 -top-2 flex h-7 w-7 items-center justify-center rounded-full bg-white text-[#667085] opacity-0 shadow-sm transition group-hover:opacity-100',
+                                mine ? '-left-2 right-auto' : ''
+                              )}
+                              aria-label="Действия с сообщением"
+                            >
+                              <MoreVertical className="h-4 w-4" />
+                            </button>
+                          </DropdownMenuTrigger>
+                          <DropdownMenuContent align={mine ? 'end' : 'start'} className="rounded-xl">
+                            <DropdownMenuItem onClick={() => void startEditMessage(message)}>
+                              <Pencil className="mr-2 h-4 w-4" />
+                              Изменить
+                            </DropdownMenuItem>
+                            <DropdownMenuItem
+                              className="text-red-600 focus:text-red-600"
+                              onClick={() => void handleDeleteMessage(message.id)}
+                            >
+                              <Trash2 className="mr-2 h-4 w-4" />
+                              Удалить
+                            </DropdownMenuItem>
+                          </DropdownMenuContent>
+                        </DropdownMenu>
+                      ) : null}
                       {!mine ? <p className="mb-1 text-xs font-semibold text-[#3390ec]">{message.senderName}</p> : null}
-                      {message.type === 'POLL' && message.poll ? (
+                      {message.isDeleted ? (
+                        <p className="text-[15px] italic text-[#8b93a7]">Сообщение удалено</p>
+                      ) : isEditing ? (
+                        <div className="space-y-2">
+                          <textarea
+                            value={editDraft}
+                            onChange={(event) => setEditDraft(event.target.value)}
+                            rows={2}
+                            className="w-full resize-none rounded-xl border border-[#dce3ec] bg-white px-3 py-2 text-[15px] outline-none focus:border-[#3390ec]"
+                          />
+                          <div className="flex justify-end gap-2">
+                            <Button size="sm" variant="secondary" className="h-8 rounded-xl" onClick={() => {
+                              setEditingMessageId(null);
+                              setEditDraft('');
+                            }}>
+                              Отмена
+                            </Button>
+                            <Button size="sm" className="h-8 rounded-xl" disabled={sending} onClick={() => void submitEditMessage()}>
+                              Сохранить
+                            </Button>
+                          </div>
+                        </div>
+                      ) : message.type === 'POLL' && message.poll ? (
                         <div className="space-y-2">
                           <p className="font-medium">{message.poll.question}</p>
                           {message.poll.options.map((option) => {
@@ -650,18 +1014,14 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
                             );
                           }
                           if (message.type === 'VOICE' || message.type === 'AUDIO') {
+                            const metaDuration = parseMessageMetadata(message.metadataJson).durationMs;
                             return (
-                              <div className="flex min-w-[220px] items-center gap-3 rounded-xl bg-black/5 px-3 py-2">
-                                <div className="flex h-9 w-9 shrink-0 items-center justify-center rounded-full bg-[#3390ec] text-white">
-                                  {message.type === 'VOICE' ? <Mic className="h-4 w-4" /> : <Volume2 className="h-4 w-4" />}
-                                </div>
-                                <div className="min-w-0 flex-1">
-                                  <p className="text-xs font-medium text-[#667085]">
-                                    {message.type === 'VOICE' ? 'Голосовое сообщение' : 'Аудиофайл'}
-                                  </p>
-                                  <audio controls preload="metadata" src={media.blobUrl} className="mt-1 h-8 w-full max-w-[240px]" />
-                                </div>
-                              </div>
+                              <VoiceMessagePlayer
+                                src={media.blobUrl}
+                                seed={message.storageKey ?? message.id}
+                                durationMs={typeof metaDuration === 'number' ? metaDuration : undefined}
+                                variant={mine ? 'mine' : 'theirs'}
+                              />
                             );
                           }
                           return (
@@ -689,9 +1049,17 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
                       ) : (
                         <p className="whitespace-pre-wrap break-words text-[15px] leading-relaxed">{message.content}</p>
                       )}
-                      <p className={cn('mt-1 text-[11px]', mine ? 'text-[#7ea06a]' : 'text-[#a8adbc]')}>
-                        {formatMessageTime(message.createdAt)}
-                      </p>
+                      <div className={cn('mt-1 flex items-center justify-end gap-1 text-[11px]', mine ? 'text-[#7ea06a]' : 'text-[#a8adbc]')}>
+                        {message.editedAt ? <span className="mr-1">изменено</span> : null}
+                        <span>{formatMessageTime(message.createdAt)}</span>
+                        {mine && !message.isDeleted ? (
+                          message.readByAll ? (
+                            <CheckCheck className="h-3.5 w-3.5 text-[#3390ec]" aria-label="Прочитано" />
+                          ) : (
+                            <Check className="h-3.5 w-3.5" aria-label="Отправлено" />
+                          )
+                        ) : null}
+                      </div>
                     </div>
                   </div>
                 );
@@ -766,6 +1134,11 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
         if (file) void uploadFamilyAvatar(file);
         event.target.value = '';
       }} />
+      <input ref={roomAvatarInputRef} type="file" accept="image/*" className="hidden" onChange={(event) => {
+        const file = event.target.files?.[0];
+        if (file) void uploadRoomAvatar(file);
+        event.target.value = '';
+      }} />
       <input ref={fileInputRef} type="file" className="hidden" onChange={(event) => {
         const file = event.target.files?.[0];
         if (file) void uploadChatFile(file);
@@ -841,6 +1214,149 @@ export function FamilyGroupView({ groupId }: { groupId: string }) {
         </DialogContent>
       </Dialog>
 
+      <Dialog open={familyMembersOpen} onOpenChange={setFamilyMembersOpen}>
+        <DialogContent className="rounded-[28px] sm:max-w-[480px]">
+          <DialogHeader>
+            <DialogTitle>Участники семьи</DialogTitle>
+          </DialogHeader>
+          <p className="text-sm text-[#667085]">
+            {group?.name} · {group?.members?.length ?? 0} {group?.members?.length === 1 ? 'участник' : 'участников'}
+          </p>
+          <div className="mt-3 max-h-[420px] space-y-2 overflow-y-auto">
+            {(group?.members ?? []).map((member) => {
+              const isSelf = member.userId === user?.id;
+              const canRemove =
+                member.role !== 'owner' && (isFamilyOwner || isSelf);
+              const presence = presenceByUserId.get(member.userId);
+
+              return (
+                <div key={member.id} className="flex items-center gap-3 rounded-2xl bg-[#f4f5f8] px-3 py-3">
+                  <div className="relative shrink-0">
+                    <Avatar className="h-10 w-10">
+                      <AvatarFallback>{member.displayName.slice(0, 1)}</AvatarFallback>
+                    </Avatar>
+                    <OnlineDot online={presence?.online} />
+                  </div>
+                  <div className="min-w-0 flex-1">
+                    <p className="truncate font-medium">
+                      {member.displayName}
+                      {isSelf ? <span className="ml-1 text-xs font-normal text-[#667085]">(Вы)</span> : null}
+                    </p>
+                    <p className="text-xs text-[#667085]">{familyMemberRoleLabel(member.role)}</p>
+                    <p className={cn('text-xs', presence?.online ? 'font-medium text-emerald-600' : 'text-[#a8adbc]')}>
+                      {presence ? formatPresenceStatus(presence) : 'Статус неизвестен'}
+                    </p>
+                  </div>
+                  {canRemove ? (
+                    <Button
+                      size="sm"
+                      variant="ghost"
+                      className="h-8 shrink-0 rounded-xl text-xs text-red-600 hover:text-red-700"
+                      onClick={() => void handleRemoveFromFamily(member.id)}
+                    >
+                      {isSelf ? 'Выйти' : 'Удалить'}
+                    </Button>
+                  ) : null}
+                </div>
+              );
+            })}
+          </div>
+          <Button className="mt-4 w-full rounded-xl" variant="secondary" onClick={() => {
+            setFamilyMembersOpen(false);
+            setInviteOpen(true);
+          }}>
+            <UserPlus className="mr-2 h-4 w-4" />
+            Пригласить в семью
+          </Button>
+        </DialogContent>
+      </Dialog>
+
+      <Dialog open={membersOpen} onOpenChange={setMembersOpen}>
+        <DialogContent className="rounded-[28px] sm:max-w-[480px]">
+          <DialogHeader><DialogTitle>Участники чата</DialogTitle></DialogHeader>
+          <div className="max-h-[420px] space-y-2 overflow-y-auto">
+            {activeRoom?.members.map((member) => {
+              const familyMember = group?.members?.find((item) => item.userId === member.userId);
+              const presence = presenceByUserId.get(member.userId);
+              const canRemoveFromChat =
+                canManageChatMembers &&
+                activeRoom.type === 'GROUP' &&
+                member.userId !== user?.id &&
+                !(member.isChatCreator && !isFamilyOwner);
+              const canRemoveFromFamily = isFamilyOwner && member.familyRole !== 'owner' && familyMember;
+
+              return (
+                <div key={member.id} className="flex items-center gap-3 rounded-2xl bg-[#f4f5f8] px-3 py-3">
+                  <div className="relative shrink-0">
+                    <Avatar className="h-10 w-10">
+                      <AvatarFallback>{member.displayName.slice(0, 1)}</AvatarFallback>
+                    </Avatar>
+                    <OnlineDot online={presence?.online} />
+                  </div>
+                  <div className="min-w-0 flex-1">
+                    <p className="truncate font-medium">{member.displayName}</p>
+                    <p className="text-xs text-[#667085]">{memberRoleLabel(member)}</p>
+                    <p className={cn('text-xs', presence?.online ? 'font-medium text-emerald-600' : 'text-[#a8adbc]')}>
+                      {presence ? formatPresenceStatus(presence) : 'Статус неизвестен'}
+                    </p>
+                  </div>
+                  <div className="flex shrink-0 flex-col gap-1">
+                    {canRemoveFromChat ? (
+                      <Button size="sm" variant="secondary" className="h-8 rounded-xl text-xs" onClick={() => void handleRemoveFromChat(member.userId)}>
+                        <Trash2 className="mr-1 h-3.5 w-3.5" />
+                        Из чата
+                      </Button>
+                    ) : null}
+                    {canRemoveFromFamily ? (
+                      <Button size="sm" variant="ghost" className="h-8 rounded-xl text-xs text-red-600 hover:text-red-700" onClick={() => void handleRemoveFromFamily(familyMember!.id)}>
+                        Из семьи
+                      </Button>
+                    ) : null}
+                  </div>
+                </div>
+              );
+            })}
+          </div>
+          {activeRoom?.type === 'GROUP' && familyMembersNotInRoom.length > 0 ? (
+            <Button className="mt-4 w-full rounded-xl" onClick={() => {
+              setMembersOpen(false);
+              setAddMembersOpen(true);
+            }}>
+              <UserPlus className="mr-2 h-4 w-4" />
+              Добавить участника
+            </Button>
+          ) : null}
+        </DialogContent>
+      </Dialog>
+
+      <Dialog open={addMembersOpen} onOpenChange={setAddMembersOpen}>
+        <DialogContent className="rounded-[28px] sm:max-w-[420px]">
+          <DialogHeader><DialogTitle>Добавить в чат</DialogTitle></DialogHeader>
+          <div className="space-y-2">
+            {familyMembersNotInRoom.length ? (
+              familyMembersNotInRoom.map((member) => (
+                <button
+                  key={member.id}
+                  type="button"
+                  className="flex w-full items-center gap-3 rounded-2xl bg-[#f4f5f8] px-3 py-3 text-left transition hover:bg-[#eceef4]"
+                  onClick={() => void handleAddRoomMember(member.userId)}
+                >
+                  <Avatar className="h-9 w-9">
+                    <AvatarFallback>{member.displayName.slice(0, 1)}</AvatarFallback>
+                  </Avatar>
+                  <div>
+                    <p className="font-medium">{member.displayName}</p>
+                    <p className="text-xs text-[#667085]">{member.role === 'owner' ? 'Создатель семьи' : 'Участник семьи'}</p>
+                  </div>
+                </button>
+              ))
+            ) : (
+              <p className="py-6 text-center text-sm text-[#667085]">Все участники семьи уже в этом чате</p>
+            )}
+          </div>
+        </DialogContent>
+      </Dialog>
+
       <Dialog open={createRoomOpen} onOpenChange={setCreateRoomOpen}>
         <DialogContent className="rounded-[28px] sm:max-w-[480px]">
           <DialogHeader><DialogTitle>Новый групповой чат</DialogTitle></DialogHeader>
diff --git a/apps/frontend/lib/api.ts b/apps/frontend/lib/api.ts
index 36e3cdb..97bd939 100644
--- a/apps/frontend/lib/api.ts
+++ b/apps/frontend/lib/api.ts
@@ -667,6 +667,9 @@ export interface ChatMessage {
   mimeType?: string;
   metadataJson?: string;
   createdAt: string;
+  editedAt?: string;
+  isDeleted?: boolean;
+  readByAll?: boolean;
   poll?: {
     id: string;
     question: string;
@@ -676,14 +679,37 @@ export interface ChatMessage {
   };
 }
 
+export interface FamilyPresenceMember {
+  userId: string;
+  displayName: string;
+  online: boolean;
+  lastSeenAt?: string;
+}
+
+export interface FamilyPresence {
+  members: FamilyPresenceMember[];
+  onlineCount: number;
+}
+
+export interface ChatRoomMember {
+  id: string;
+  userId: string;
+  displayName: string;
+  hasAvatar: boolean;
+  notificationsMuted: boolean;
+  familyRole?: string;
+  isChatCreator?: boolean;
+}
+
 export interface ChatRoom {
   id: string;
   groupId: string;
   type: string;
   name: string;
   hasAvatar: boolean;
+  createdById?: string;
   updatedAt: string;
-  members: Array<{ id: string; userId: string; displayName: string; hasAvatar: boolean; notificationsMuted: boolean }>;
+  members: ChatRoomMember[];
   lastMessage?: ChatMessage;
 }
 
@@ -738,6 +764,21 @@ export async function createChatRoom(groupId: string, name: string, memberUserId
   }, token);
 }
 
+export async function addChatRoomMember(roomId: string, memberUserId: string, token?: string | null) {
+  return apiFetch<ChatRoom>(`/chat/rooms/${roomId}/members`, {
+    method: 'POST',
+    body: JSON.stringify({ memberUserId })
+  }, token);
+}
+
+export async function removeChatRoomMember(roomId: string, memberUserId: string, token?: string | null) {
+  return apiFetch<ChatRoom>(`/chat/rooms/${roomId}/members/${memberUserId}`, { method: 'DELETE' }, token);
+}
+
+export async function removeFamilyMember(memberId: string, token?: string | null) {
+  return apiFetch<{ count: number }>(`/family/members/${memberId}`, { method: 'DELETE' }, token);
+}
+
 export async function fetchChatMessages(roomId: string, token?: string | null, beforeMessageId?: string) {
   const query = beforeMessageId ? `?beforeMessageId=${beforeMessageId}` : '';
   return apiFetch<{ messages?: ChatMessage[] }>(`/chat/rooms/${roomId}/messages${query}`, {}, token);
@@ -767,5 +808,24 @@ export async function setChatRoomMuted(roomId: string, muted: boolean, token?: s
   return apiFetch(`/chat/rooms/${roomId}/mute`, { method: 'POST', body: JSON.stringify({ muted }) }, token);
 }
 
+export async function editChatMessage(messageId: string, content: string, token?: string | null) {
+  return apiFetch<ChatMessage>(`/chat/messages/${messageId}`, { method: 'PATCH', body: JSON.stringify({ content }) }, token);
+}
+
+export async function deleteChatMessage(messageId: string, token?: string | null) {
+  return apiFetch<ChatMessage>(`/chat/messages/${messageId}`, { method: 'DELETE' }, token);
+}
+
+export async function markChatRoomRead(roomId: string, lastMessageId: string | undefined, token?: string | null) {
+  return apiFetch<{ count: number }>(`/chat/rooms/${roomId}/read`, {
+    method: 'POST',
+    body: JSON.stringify({ lastMessageId })
+  }, token);
+}
+
+export async function fetchFamilyPresence(groupId: string, token?: string | null) {
+  return apiFetch<FamilyPresence>(`/family/groups/${groupId}/presence`, {}, token);
+}
+
 /** @deprecated Используйте getWsUrl() — URL может переключаться на same-origin /idp-api/ws в браузере */
 export const WS_URL = configuredWsUrl;
diff --git a/apps/frontend/lib/authenticated-media.ts b/apps/frontend/lib/authenticated-media.ts
index 504b122..3258d14 100644
--- a/apps/frontend/lib/authenticated-media.ts
+++ b/apps/frontend/lib/authenticated-media.ts
@@ -1,11 +1,15 @@
-export async function fetchAuthenticatedMediaBlob(accessUrl: string, token: string) {
+export async function fetchAuthenticatedMediaBlob(accessUrl: string, token: string, mimeType?: string) {
   const response = await fetch(accessUrl, {
     headers: { Authorization: `Bearer ${token}` }
   });
   if (!response.ok) {
     throw new Error('Не удалось загрузить файл');
   }
-  return response.blob();
+  const raw = await response.blob();
+  if (mimeType && (!raw.type || raw.type === 'application/octet-stream')) {
+    return new Blob([await raw.arrayBuffer()], { type: mimeType });
+  }
+  return raw;
 }
 
 export function createBlobObjectUrl(blob: Blob) {
diff --git a/apps/media-ws/main.go b/apps/media-ws/main.go
index 83567a4..c2af4b8 100644
--- a/apps/media-ws/main.go
+++ b/apps/media-ws/main.go
@@ -59,6 +59,7 @@ func (h *Hub) Remove(ctx context.Context, userID string, conn *websocket.Conn) {
 		delete(h.connections, userID)
 		_ = h.redis.SRem(ctx, "ws:online_users", userID).Err()
 		_ = h.redis.Del(ctx, "ws:user:"+userID).Err()
+		_ = h.redis.Set(ctx, "ws:last_seen:"+userID, time.Now().UTC().Format(time.RFC3339), 0).Err()
 	}
 }
 
diff --git a/apps/sso-core/prisma/schema.prisma b/apps/sso-core/prisma/schema.prisma
index 45cdf22..dbf04dd 100644
--- a/apps/sso-core/prisma/schema.prisma
+++ b/apps/sso-core/prisma/schema.prisma
@@ -384,8 +384,10 @@ model ChatRoomMember {
   id                 String   @id @default(uuid())
   roomId             String
   userId             String
-  notificationsMuted Boolean  @default(false)
-  joinedAt           DateTime @default(now())
+  notificationsMuted Boolean   @default(false)
+  lastReadAt         DateTime?
+  lastReadMessageId  String?
+  joinedAt           DateTime  @default(now())
   room               ChatRoom @relation(fields: [roomId], references: [id], onDelete: Cascade)
   user               User     @relation(fields: [userId], references: [id], onDelete: Cascade)
 
@@ -404,6 +406,7 @@ model ChatMessage {
   mimeType   String?
   createdAt  DateTime   @default(now())
   editedAt   DateTime?
+  deletedAt  DateTime?
   room       ChatRoom   @relation(fields: [roomId], references: [id], onDelete: Cascade)
   sender     User       @relation(fields: [senderId], references: [id], onDelete: Cascade)
   poll       ChatPoll?
diff --git a/apps/sso-core/src/app.module.ts b/apps/sso-core/src/app.module.ts
index b5f7129..9d38074 100644
--- a/apps/sso-core/src/app.module.ts
+++ b/apps/sso-core/src/app.module.ts
@@ -26,6 +26,7 @@ import { FamilyService } from './domain/family.service';
 import { MediaService } from './domain/media.service';
 import { NotificationsService } from './domain/notifications.service';
 import { ChatService } from './domain/chat.service';
+import { PresenceService } from './domain/presence.service';
 import { NotificationPublisherService } from './infra/notification-publisher.service';
 import { MinioService } from './infra/minio.service';
 import { LdapClientService } from './infra/ldap-client.service';
@@ -63,6 +64,7 @@ import { TotpService } from './domain/totp.service';
     MediaService,
     NotificationsService,
     ChatService,
+    PresenceService,
     NotificationPublisherService,
     MinioService,
     LdapClientService,
diff --git a/apps/sso-core/src/domain/auth-grpc.controller.ts b/apps/sso-core/src/domain/auth-grpc.controller.ts
index d1bb7d8..5980230 100644
--- a/apps/sso-core/src/domain/auth-grpc.controller.ts
+++ b/apps/sso-core/src/domain/auth-grpc.controller.ts
@@ -20,6 +20,7 @@ import { FamilyService } from './family.service';
 import { MediaService } from './media.service';
 import { NotificationsService } from './notifications.service';
 import { ChatService } from './chat.service';
+import { PresenceService } from './presence.service';
 import { TotpService } from './totp.service';
 import { MessagingService } from '../infra/messaging.service';
 
@@ -44,6 +45,7 @@ export class AuthGrpcController {
     private readonly media: MediaService,
     private readonly notifications: NotificationsService,
     private readonly chat: ChatService,
+    private readonly presence: PresenceService,
     private readonly messaging: MessagingService,
     private readonly totp: TotpService
   ) {}
@@ -624,6 +626,21 @@ export class AuthGrpcController {
     return this.media.getChatMediaAccessUrl(command.requesterId, command.roomId, command.storageKey, command.fileName);
   }
 
+  @GrpcMethod('MediaService', 'CreateChatRoomAvatarUploadUrl')
+  createChatRoomAvatarUploadUrl(command: { requesterId: string; roomId: string; contentType: string }) {
+    return this.media.createChatRoomAvatarUploadUrl(command.requesterId, command.roomId, command.contentType);
+  }
+
+  @GrpcMethod('MediaService', 'ConfirmChatRoomAvatar')
+  confirmChatRoomAvatar(command: { requesterId: string; roomId: string; storageKey: string }) {
+    return this.media.confirmChatRoomAvatar(command.requesterId, command.roomId, command.storageKey);
+  }
+
+  @GrpcMethod('MediaService', 'GetChatRoomAvatarAccessUrl')
+  getChatRoomAvatarAccessUrl(command: { requesterId: string; roomId: string }) {
+    return this.media.getChatRoomAvatarAccessUrl(command.requesterId, command.roomId);
+  }
+
   @GrpcMethod('OAuthCoreService', 'Authorize')
   authorize(command: { userId: string; clientId: string; redirectUri: string; scope: string; state?: string }) {
     return this.oauthCore.authorize(command);
@@ -738,6 +755,11 @@ export class AuthGrpcController {
     return this.family.listInvites(command.userId, command.groupId);
   }
 
+  @GrpcMethod('FamilyService', 'GetFamilyPresence')
+  getFamilyPresence(command: { requesterId: string; groupId: string }) {
+    return this.presence.getFamilyPresence(command.requesterId, command.groupId);
+  }
+
   @GrpcMethod('NotificationsService', 'ListNotifications')
   listNotifications(command: { userId: string; limit?: number; unreadOnly?: boolean }) {
     return this.notifications.list(command.userId, command.limit, command.unreadOnly);
@@ -783,6 +805,16 @@ export class AuthGrpcController {
     return this.chat.updateRoomSettings(command.userId, command.roomId, command.name, command.notificationsMuted);
   }
 
+  @GrpcMethod('ChatService', 'AddRoomMember')
+  addChatRoomMember(command: { userId: string; roomId: string; memberUserId: string }) {
+    return this.chat.addRoomMember(command.userId, command.roomId, command.memberUserId);
+  }
+
+  @GrpcMethod('ChatService', 'RemoveRoomMember')
+  removeChatRoomMember(command: { userId: string; roomId: string; memberUserId: string }) {
+    return this.chat.removeRoomMember(command.userId, command.roomId, command.memberUserId);
+  }
+
   @GrpcMethod('ChatService', 'ListMessages')
   listChatMessages(command: { userId: string; roomId: string; beforeMessageId?: string; limit?: number }) {
     return this.chat.listMessages(command.userId, command.roomId, command.beforeMessageId, command.limit);
@@ -823,6 +855,21 @@ export class AuthGrpcController {
     return this.chat.setRoomNotificationsMuted(command.userId, command.roomId, command.muted);
   }
 
+  @GrpcMethod('ChatService', 'EditMessage')
+  editChatMessage(command: { userId: string; messageId: string; content: string }) {
+    return this.chat.editMessage(command.userId, command.messageId, command.content);
+  }
+
+  @GrpcMethod('ChatService', 'DeleteMessage')
+  deleteChatMessage(command: { userId: string; messageId: string }) {
+    return this.chat.deleteMessage(command.userId, command.messageId);
+  }
+
+  @GrpcMethod('ChatService', 'MarkRoomRead')
+  markChatRoomRead(command: { userId: string; roomId: string; lastMessageId?: string }) {
+    return this.chat.markRoomRead(command.userId, command.roomId, command.lastMessageId);
+  }
+
   private toSessionResponse(session: { id: string; userId: string; deviceId: string | null; pinVerified: boolean; status: string; ipAddress: string | null; userAgent: string | null; expiresAt: Date; createdAt: Date; updatedAt: Date }) {
     return {
       id: session.id,
diff --git a/apps/sso-core/src/domain/chat.service.ts b/apps/sso-core/src/domain/chat.service.ts
index b19c651..37c4f53 100644
--- a/apps/sso-core/src/domain/chat.service.ts
+++ b/apps/sso-core/src/domain/chat.service.ts
@@ -10,6 +10,11 @@ interface PollPayload {
   isAnonymous?: boolean;
 }
 
+interface ReadContextMember {
+  userId: string;
+  lastReadAt: Date | null;
+}
+
 @Injectable()
 export class ChatService {
   constructor(
@@ -51,27 +56,18 @@ export class ChatService {
       orderBy: [{ type: 'asc' }, { updatedAt: 'desc' }]
     });
 
+    const familyMembers = await this.prisma.familyMember.findMany({ where: { groupId } });
+    const familyRoleByUserId = new Map(familyMembers.map((member) => [member.userId, member.role]));
+
     return {
       rooms: await Promise.all(
         rooms.map(async (room) => {
-          const membership = room.members.find((member) => member.userId === userId);
           const lastMessage = room.messages[0];
-          return {
-            id: room.id,
-            groupId: room.groupId,
-            type: room.type,
-            name: room.name,
-            hasAvatar: room.hasAvatar,
-            updatedAt: room.updatedAt.toISOString(),
-            members: room.members.map((member) => ({
-              id: member.id,
-              userId: member.userId,
-              displayName: member.user.displayName,
-              hasAvatar: Boolean(member.user.avatarStorageKey),
-              notificationsMuted: member.notificationsMuted
-            })),
-            lastMessage: lastMessage ? await this.toMessage(lastMessage, userId) : undefined
-          };
+          return this.formatRoom(
+            room,
+            familyRoleByUserId,
+            lastMessage ? await this.toMessage(lastMessage, userId, await this.getRoomReadContext(room.id)) : undefined
+          );
         })
       )
     };
@@ -107,21 +103,61 @@ export class ChatService {
       }
     });
 
-    return {
-      id: room.id,
-      groupId: room.groupId,
-      type: room.type,
-      name: room.name,
-      hasAvatar: room.hasAvatar,
-      updatedAt: room.updatedAt.toISOString(),
-      members: room.members.map((member) => ({
-        id: member.id,
-        userId: member.userId,
-        displayName: member.user.displayName,
-        hasAvatar: Boolean(member.user.avatarStorageKey),
-        notificationsMuted: member.notificationsMuted
-      }))
-    };
+    const familyMembers = await this.prisma.familyMember.findMany({ where: { groupId } });
+    const familyRoleByUserId = new Map(familyMembers.map((member) => [member.userId, member.role]));
+
+    return this.formatRoom(room, familyRoleByUserId);
+  }
+
+  async addRoomMember(userId: string, roomId: string, memberUserId: string) {
+    const room = await this.getRoomForMember(roomId, userId);
+    if (room.type === 'GENERAL') {
+      throw new BadRequestException('В общий чат нельзя добавлять участников вручную');
+    }
+    if (room.members.some((member) => member.userId === memberUserId)) {
+      throw new BadRequestException('Пользователь уже состоит в чате');
+    }
+    if (!room.group.members.some((member) => member.userId === memberUserId)) {
+      throw new BadRequestException('Пользователь должен состоять в семье');
+    }
+
+    await this.prisma.chatRoomMember.create({
+      data: { roomId, userId: memberUserId }
+    });
+
+    return this.getRoomResponse(roomId, userId);
+  }
+
+  async removeRoomMember(userId: string, roomId: string, memberUserId: string) {
+    const room = await this.getRoomForMember(roomId, userId);
+    if (room.type === 'GENERAL') {
+      throw new BadRequestException('Нельзя удалить участника из общего чата');
+    }
+
+    const isFamilyOwner = room.group.ownerId === userId;
+    const isChatCreator = room.createdById === userId;
+    if (!isFamilyOwner && !isChatCreator) {
+      throw new ForbiddenException('Недостаточно прав для удаления участника из чата');
+    }
+
+    if (memberUserId === room.createdById && !isFamilyOwner) {
+      throw new BadRequestException('Создателя чата может удалить только создатель семьи');
+    }
+
+    if (memberUserId === userId && room.members.length <= 1) {
+      throw new BadRequestException('В чате должен остаться хотя бы один участник');
+    }
+
+    const membership = room.members.find((member) => member.userId === memberUserId);
+    if (!membership) {
+      throw new NotFoundException('Участник не найден в этом чате');
+    }
+
+    await this.prisma.chatRoomMember.delete({
+      where: { roomId_userId: { roomId, userId: memberUserId } }
+    });
+
+    return this.getRoomResponse(roomId, userId);
   }
 
   async updateRoomSettings(userId: string, roomId: string, name?: string, notificationsMuted?: boolean) {
@@ -148,6 +184,7 @@ export class ChatService {
   async listMessages(userId: string, roomId: string, beforeMessageId?: string, limit = 50) {
     await this.getRoomForMember(roomId, userId);
     const take = Math.min(Math.max(limit, 1), 100);
+    const readContext = await this.getRoomReadContext(roomId);
 
     let cursorDate: Date | undefined;
     if (beforeMessageId) {
@@ -170,7 +207,7 @@ export class ChatService {
 
     const ordered = messages.reverse();
     return {
-      messages: await Promise.all(ordered.map((message) => this.toMessage(message, userId)))
+      messages: await Promise.all(ordered.map((message) => this.toMessage(message, userId, readContext)))
     };
   }
 
@@ -255,11 +292,93 @@ export class ChatService {
       }
     });
 
-    const response = await this.toMessage(fullMessage!, userId);
+    const readContext = await this.getRoomReadContext(roomId);
+    const response = await this.toMessage(fullMessage!, userId, readContext);
     await this.notifyRoomMembers(room, userId, response);
     return response;
   }
 
+  async editMessage(userId: string, messageId: string, content: string) {
+    const message = await this.prisma.chatMessage.findUnique({
+      where: { id: messageId },
+      include: { room: { include: { members: true } } }
+    });
+    if (!message || message.deletedAt) {
+      throw new NotFoundException('Сообщение не найдено');
+    }
+    if (message.senderId !== userId) {
+      throw new ForbiddenException('Можно редактировать только свои сообщения');
+    }
+    if (!['TEXT', 'EMOJI'].includes(message.type)) {
+      throw new BadRequestException('Этот тип сообщения нельзя редактировать');
+    }
+
+    const trimmed = content.trim();
+    if (!trimmed) {
+      throw new BadRequestException('Сообщение не может быть пустым');
+    }
+
+    await this.prisma.chatMessage.update({
+      where: { id: messageId },
+      data: { content: trimmed, editedAt: new Date() }
+    });
+
+    const response = await this.loadMessageResponse(messageId, userId);
+    await this.publishRoomEvent(message.room, 'chat_message_updated', response);
+    return response;
+  }
+
+  async deleteMessage(userId: string, messageId: string) {
+    const message = await this.prisma.chatMessage.findUnique({
+      where: { id: messageId },
+      include: { room: { include: { members: true } } }
+    });
+    if (!message || message.deletedAt) {
+      throw new NotFoundException('Сообщение не найдено');
+    }
+    if (message.senderId !== userId) {
+      throw new ForbiddenException('Можно удалять только свои сообщения');
+    }
+
+    await this.prisma.chatMessage.update({
+      where: { id: messageId },
+      data: { deletedAt: new Date(), content: null, storageKey: null, mimeType: null, metadata: undefined }
+    });
+
+    const response = await this.loadMessageResponse(messageId, userId);
+    await this.publishRoomEvent(message.room, 'chat_message_deleted', response);
+    return response;
+  }
+
+  async markRoomRead(userId: string, roomId: string, lastMessageId?: string) {
+    const room = await this.getRoomForMember(roomId, userId);
+    let readAt = new Date();
+
+    if (lastMessageId) {
+      const message = await this.prisma.chatMessage.findFirst({ where: { id: lastMessageId, roomId } });
+      if (message) {
+        readAt = message.createdAt;
+      }
+    }
+
+    await this.prisma.chatRoomMember.update({
+      where: { roomId_userId: { roomId, userId } },
+      data: { lastReadAt: readAt, lastReadMessageId: lastMessageId ?? null }
+    });
+
+    for (const member of room.members) {
+      if (member.userId === userId) continue;
+      await this.notifications.publishRealtime(member.userId, 'chat_read_receipt', room.name, '', {
+        roomId,
+        userId,
+        lastReadAt: readAt.toISOString(),
+        lastReadMessageId: lastMessageId
+      });
+    }
+
+    return { count: 1 };
+  }
+
   async votePoll(userId: string, messageId: string, optionIds: string[]) {
     const message = await this.prisma.chatMessage.findUnique({
       where: { id: messageId },
@@ -302,7 +421,7 @@ export class ChatService {
         poll: { include: { options: { include: { votes: true } } } }
       }
     });
-    return this.toMessage(updated!, userId);
+    return this.toMessage(updated!, userId, await this.getRoomReadContext(updated!.roomId));
   }
 
   async setRoomNotificationsMuted(userId: string, roomId: string, muted: boolean) {
@@ -335,27 +454,88 @@ export class ChatService {
     return room;
   }
 
+  private formatRoom(
+    room: {
+      id: string;
+      groupId: string;
+      type: string;
+      name: string;
+      hasAvatar: boolean;
+      updatedAt: Date;
+      createdById: string | null;
+      members: Array<{
+        id: string;
+        userId: string;
+        notificationsMuted: boolean;
+        user: { displayName: string; avatarStorageKey: string | null };
+      }>;
+    },
+    familyRoleByUserId: Map<string, string>,
+    lastMessage?: Awaited<ReturnType<ChatService['toMessage']>>
+  ) {
+    return {
+      id: room.id,
+      groupId: room.groupId,
+      type: room.type,
+      name: room.name,
+      hasAvatar: room.hasAvatar,
+      createdById: room.createdById ?? undefined,
+      updatedAt: room.updatedAt.toISOString(),
+      members: room.members.map((member) => ({
+        id: member.id,
+        userId: member.userId,
+        displayName: member.user.displayName,
+        hasAvatar: Boolean(member.user.avatarStorageKey),
+        notificationsMuted: member.notificationsMuted,
+        familyRole: familyRoleByUserId.get(member.userId) ?? 'member',
+        isChatCreator: room.createdById === member.userId
+      })),
+      lastMessage
+    };
+  }
+
   private async getRoomResponse(roomId: string, userId: string) {
     const room = await this.getRoomForMember(roomId, userId);
     const full = await this.prisma.chatRoom.findUnique({
       where: { id: roomId },
       include: { members: { include: { user: true } } }
     });
-    return {
-      id: full!.id,
-      groupId: full!.groupId,
-      type: full!.type,
-      name: full!.name,
-      hasAvatar: full!.hasAvatar,
-      updatedAt: full!.updatedAt.toISOString(),
-      members: full!.members.map((member) => ({
-        id: member.id,
-        userId: member.userId,
-        displayName: member.user.displayName,
-        hasAvatar: Boolean(member.user.avatarStorageKey),
-        notificationsMuted: member.notificationsMuted
-      }))
-    };
+    const familyMembers = await this.prisma.familyMember.findMany({ where: { groupId: full!.groupId } });
+    const familyRoleByUserId = new Map(familyMembers.map((member) => [member.userId, member.role]));
+    return this.formatRoom(full!, familyRoleByUserId);
+  }
+
+  private async getRoomReadContext(roomId: string): Promise<ReadContextMember[]> {
+    const members = await this.prisma.chatRoomMember.findMany({ where: { roomId } });
+    return members.map((member) => ({ userId: member.userId, lastReadAt: member.lastReadAt }));
+  }
+
+  private async loadMessageResponse(messageId: string, viewerId: string) {
+    const message = await this.prisma.chatMessage.findUnique({
+      where: { id: messageId },
+      include: {
+        sender: true,
+        poll: { include: { options: { include: { votes: true } } } }
+      }
+    });
+    if (!message) {
+      throw new NotFoundException('Сообщение не найдено');
+    }
+    const readContext = await this.getRoomReadContext(message.roomId);
+    return this.toMessage(message, viewerId, readContext);
+  }
+
+  private async publishRoomEvent(
+    room: { id: string; name: string; members: Array<{ userId: string }> },
+    eventType: string,
+    message: Awaited<ReturnType<ChatService['toMessage']>>
+  ) {
+    for (const member of room.members) {
+      await this.notifications.publishRealtime(member.userId, eventType, room.name, '', {
+        roomId: room.id,
+        message
+      });
+    }
   }
 
   private async notifyRoomMembers(
@@ -412,6 +592,8 @@ export class ChatService {
       mimeType: string | null;
       metadata: unknown;
       createdAt: Date;
+      editedAt?: Date | null;
+      deletedAt?: Date | null;
       sender: { displayName: string; avatarStorageKey: string | null };
       poll?: {
         id: string;
@@ -422,8 +604,17 @@ export class ChatService {
         options: Array<{ id: string; text: string; votes: Array<{ userId: string }> }>;
       } | null;
     },
-    viewerId: string
+    viewerId: string,
+    readContext?: ReadContextMember[]
   ) {
+    const isDeleted = Boolean(message.deletedAt);
+    let readByAll = false;
+    if (readContext && message.senderId === viewerId && !isDeleted) {
+      const others = readContext.filter((member) => member.userId !== message.senderId);
+      readByAll =
+        others.length > 0 && others.every((member) => member.lastReadAt && member.lastReadAt >= message.createdAt);
+    }
+
     return {
       id: message.id,
       roomId: message.roomId,
@@ -431,13 +622,16 @@ export class ChatService {
       senderName: message.sender.displayName,
       senderHasAvatar: Boolean(message.sender.avatarStorageKey),
       type: message.type,
-      content: message.content ?? undefined,
+      content: isDeleted ? undefined : message.content ?? undefined,
       replyToId: message.replyToId ?? undefined,
-      storageKey: message.storageKey ?? undefined,
-      mimeType: message.mimeType ?? undefined,
-      metadataJson: message.metadata ? JSON.stringify(message.metadata) : undefined,
+      storageKey: isDeleted ? undefined : message.storageKey ?? undefined,
+      mimeType: isDeleted ? undefined : message.mimeType ?? undefined,
+      metadataJson: isDeleted ? undefined : message.metadata ? JSON.stringify(message.metadata) : undefined,
       createdAt: message.createdAt.toISOString(),
-      poll: message.poll
+      editedAt: message.editedAt?.toISOString(),
+      isDeleted,
+      readByAll: message.senderId === viewerId ? readByAll : undefined,
+      poll: !isDeleted && message.poll
         ? {
             id: message.poll.id,
             question: message.poll.question,
diff --git a/apps/sso-core/src/domain/media.service.ts b/apps/sso-core/src/domain/media.service.ts
index f2990d9..885ef15 100644
--- a/apps/sso-core/src/domain/media.service.ts
+++ b/apps/sso-core/src/domain/media.service.ts
@@ -128,11 +128,11 @@ export class MediaService {
       throw new ForbiddenException('Ссылка недействительна');
     }
 
-    if (payload.objectKey.startsWith('chat/')) {
+    if (payload.objectKey.startsWith('chat/') || payload.objectKey.startsWith('chat-rooms/')) {
       if (!requesterId) {
         throw new ForbiddenException('Для доступа к файлу чата требуется авторизация');
       }
-      const roomId = payload.roomId ?? this.extractChatRoomId(payload.objectKey);
+      const roomId = payload.roomId ?? this.extractChatRoomId(payload.objectKey) ?? this.extractChatRoomAvatarRoomId(payload.objectKey);
       if (!roomId) {
         throw new ForbiddenException('Некорректный ключ файла чата');
       }
@@ -238,6 +238,39 @@ export class MediaService {
     return this.createStreamAccessUrl(storageKey, requesterId, { roomId, fileName });
   }
 
+  async createChatRoomAvatarUploadUrl(requesterId: string, roomId: string, contentType: string) {
+    await this.assertChatMember(roomId, requesterId);
+    try {
+      this.minio.assertImageContentType(contentType);
+    } catch (error) {
+      throw new BadRequestException(error instanceof Error ? error.message : 'Некорректный тип файла');
+    }
+    const extension = this.minio.extensionForContentType(contentType);
+    const storageKey = `chat-rooms/${roomId}/${crypto.randomUUID()}.${extension}`;
+    return this.createUploadTarget(requesterId, storageKey, contentType);
+  }
+
+  async confirmChatRoomAvatar(requesterId: string, roomId: string, storageKey: string) {
+    await this.assertChatMember(roomId, requesterId);
+    if (!storageKey.startsWith(`chat-rooms/${roomId}/`)) {
+      throw new BadRequestException('Некорректный ключ аватара чата');
+    }
+    await this.prisma.chatRoom.update({
+      where: { id: roomId },
+      data: { avatarStorageKey: storageKey, hasAvatar: true }
+    });
+    return { roomId, hasAvatar: true };
+  }
+
+  async getChatRoomAvatarAccessUrl(requesterId: string, roomId: string) {
+    await this.assertChatMember(roomId, requesterId);
+    const room = await this.prisma.chatRoom.findUnique({ where: { id: roomId } });
+    if (!room?.avatarStorageKey) {
+      throw new NotFoundException('Аватар чата не найден');
+    }
+    return this.createStreamAccessUrl(room.avatarStorageKey, requesterId, { roomId });
+  }
+
   private extractChatRoomId(storageKey: string) {
     const [prefix, roomId] = storageKey.split('/');
     if (prefix !== 'chat' || !roomId) {
@@ -246,6 +279,14 @@ export class MediaService {
     return roomId;
   }
 
+  private extractChatRoomAvatarRoomId(storageKey: string) {
+    const [prefix, roomId] = storageKey.split('/');
+    if (prefix !== 'chat-rooms' || !roomId) {
+      return null;
+    }
+    return roomId;
+  }
+
   private async createUploadTarget(userId: string, storageKey: string, contentType: string) {
     const viaApi = this.config.get<string>('MINIO_UPLOAD_VIA_API', 'true') !== 'false';
     const expiresAt = new Date(Date.now() + UPLOAD_TTL_SECONDS * 1000).toISOString();
diff --git a/apps/sso-core/src/domain/presence.service.ts b/apps/sso-core/src/domain/presence.service.ts
new file mode 100644
index 0000000..dbcad67
--- /dev/null
+++ b/apps/sso-core/src/domain/presence.service.ts
@@ -0,0 +1,44 @@
+import { Injectable } from '@nestjs/common';
+import { RedisService } from '../infra/redis.service';
+import { FamilyService } from './family.service';
+
+const ONLINE_KEY_PREFIX = 'ws:user:';
+const LAST_SEEN_KEY_PREFIX = 'ws:last_seen:';
+
+@Injectable()
+export class PresenceService {
+  constructor(
+    private readonly redis: RedisService,
+    private readonly family: FamilyService
+  ) {}
+
+  async isUserOnline(userId: string) {
+    const value = await this.redis.client.get(`${ONLINE_KEY_PREFIX}${userId}`);
+    return value === 'online';
+  }
+
+  async getUserLastSeen(userId: string) {
+    return this.redis.client.get(`${LAST_SEEN_KEY_PREFIX}${userId}`);
+  }
+
+  async getFamilyPresence(requesterId: string, groupId: string) {
+    const group = await this.family.assertFamilyMember(groupId, requesterId);
+    const members = await Promise.all(
+      group.members.map(async (member) => {
+        const online = await this.isUserOnline(member.userId);
+        const lastSeenRaw = online ? null : await this.getUserLastSeen(member.userId);
+        return {
+          userId: member.userId,
+          displayName: member.user.displayName,
+          online,
+          lastSeenAt: online ? new Date().toISOString() : lastSeenRaw ?? undefined
+        };
+      })
+    );
+
+    return {
+      members,
+      onlineCount: members.filter((member) => member.online).length
+    };
+  }
+}
diff --git a/shared/proto/chat.proto b/shared/proto/chat.proto
index 0feb3ce..36b15a5 100644
--- a/shared/proto/chat.proto
+++ b/shared/proto/chat.proto
@@ -6,8 +6,13 @@ service ChatService {
   rpc ListRooms (ListRoomsRequest) returns (ListRoomsResponse);
   rpc CreateRoom (CreateRoomRequest) returns (ChatRoomResponse);
   rpc UpdateRoomSettings (UpdateRoomSettingsRequest) returns (ChatRoomResponse);
+  rpc AddRoomMember (AddRoomMemberRequest) returns (ChatRoomResponse);
+  rpc RemoveRoomMember (RemoveRoomMemberRequest) returns (ChatRoomResponse);
   rpc ListMessages (ListMessagesRequest) returns (ListMessagesResponse);
   rpc SendMessage (SendMessageRequest) returns (ChatMessageResponse);
+  rpc EditMessage (EditMessageRequest) returns (ChatMessageResponse);
+  rpc DeleteMessage (DeleteMessageRequest) returns (ChatMessageResponse);
+  rpc MarkRoomRead (MarkRoomReadRequest) returns (MutationResponse);
   rpc VotePoll (VotePollRequest) returns (ChatMessageResponse);
   rpc SetRoomNotificationsMuted (SetRoomNotificationsMutedRequest) returns (MutationResponse);
 }
@@ -31,6 +36,18 @@ message UpdateRoomSettingsRequest {
   optional bool notificationsMuted = 4;
 }
 
+message AddRoomMemberRequest {
+  string userId = 1;
+  string roomId = 2;
+  string memberUserId = 3;
+}
+
+message RemoveRoomMemberRequest {
+  string userId = 1;
+  string roomId = 2;
+  string memberUserId = 3;
+}
+
 message ListMessagesRequest {
   string userId = 1;
   string roomId = 2;
@@ -50,6 +67,23 @@ message SendMessageRequest {
   optional PollPayload poll = 9;
 }
 
+message EditMessageRequest {
+  string userId = 1;
+  string messageId = 2;
+  string content = 3;
+}
+
+message DeleteMessageRequest {
+  string userId = 1;
+  string messageId = 2;
+}
+
+message MarkRoomReadRequest {
+  string userId = 1;
+  string roomId = 2;
+  optional string lastMessageId = 3;
+}
+
 message PollPayload {
   string question = 1;
   repeated string options = 2;
@@ -75,6 +109,8 @@ message ChatRoomMemberResponse {
   string displayName = 3;
   bool hasAvatar = 4;
   bool notificationsMuted = 5;
+  string familyRole = 6;
+  bool isChatCreator = 7;
 }
 
 message ChatRoomResponse {
@@ -86,6 +122,7 @@ message ChatRoomResponse {
   string updatedAt = 6;
   repeated ChatRoomMemberResponse members = 7;
   optional ChatMessageResponse lastMessage = 8;
+  optional string createdById = 9;
 }
 
 message PollOptionResponse {
@@ -118,6 +155,9 @@ message ChatMessageResponse {
   optional string metadataJson = 11;
   string createdAt = 12;
   optional PollResponse poll = 13;
+  optional string editedAt = 14;
+  bool isDeleted = 15;
+  optional bool readByAll = 16;
 }
 
 message ListRoomsResponse {
diff --git a/shared/proto/identity.proto b/shared/proto/identity.proto
index c870a30..1f15a9f 100644
--- a/shared/proto/identity.proto
+++ b/shared/proto/identity.proto
@@ -33,6 +33,7 @@ service FamilyService {
   rpc SearchFamilyInviteUsers (SearchFamilyInviteUsersRequest) returns (SearchFamilyInviteUsersResponse);
   rpc RespondFamilyInvite (RespondFamilyInviteRequest) returns (FamilyInviteResponse);
   rpc ListFamilyInvites (ListFamilyInvitesRequest) returns (ListFamilyInvitesResponse);
+  rpc GetFamilyPresence (GetFamilyGroupRequest) returns (FamilyPresenceResponse);
 }
 
 message AuthorizeRequest {
@@ -270,3 +271,15 @@ message ListFamilyGroupsResponse {
 message MutationResponse {
   int32 count = 1;
 }
+
+message FamilyPresenceMember {
+  string userId = 1;
+  string displayName = 2;
+  bool online = 3;
+  optional string lastSeenAt = 4;
+}
+
+message FamilyPresenceResponse {
+  repeated FamilyPresenceMember members = 1;
+  int32 onlineCount = 2;
+}
diff --git a/shared/proto/media.proto b/shared/proto/media.proto
index 4e6b18e..5106dd7 100644
--- a/shared/proto/media.proto
+++ b/shared/proto/media.proto
@@ -14,6 +14,9 @@ service MediaService {
   rpc GetFamilyAvatarAccessUrl (FamilyAvatarAccessRequest) returns (MediaAccessResponse);
   rpc CreateChatMediaUploadUrl (ChatMediaUploadRequest) returns (PresignedUploadResponse);
   rpc GetChatMediaAccessUrl (ChatMediaAccessRequest) returns (MediaAccessResponse);
+  rpc CreateChatRoomAvatarUploadUrl (ChatRoomAvatarUploadRequest) returns (PresignedUploadResponse);
+  rpc ConfirmChatRoomAvatar (ConfirmChatRoomAvatarRequest) returns (ChatRoomAvatarResponse);
+  rpc GetChatRoomAvatarAccessUrl (ChatRoomAvatarAccessRequest) returns (MediaAccessResponse);
 }
 
 message AvatarUploadRequest {
@@ -105,3 +108,25 @@ message ChatMediaAccessRequest {
   string storageKey = 3;
   optional string fileName = 4;
 }
+
+message ChatRoomAvatarUploadRequest {
+  string requesterId = 1;
+  string roomId = 2;
+  string contentType = 3;
+}
+
+message ConfirmChatRoomAvatarRequest {
+  string requesterId = 1;
+  string roomId = 2;
+  string storageKey = 3;
+}
+
+message ChatRoomAvatarAccessRequest {
+  string requesterId = 1;
+  string roomId = 2;
+}
+
+message ChatRoomAvatarResponse {
+  string roomId = 1;
+  bool hasAvatar = 2;
+}