Fix bugs and clean noise reduction

src/app/core/models/index.ts

@@ -49,6 +49,31 @@ export interface User {
   screenShareState?: ScreenShareState;
 }
 
+/**
+ * Persisted membership record for a room/server.
+ *
+ * Unlike `User`, this survives when a member goes offline so the UI can
+ * continue to list known server members.
+ */
+export interface RoomMember {
+  /** The member's local application/database identifier. */
+  id: string;
+  /** Optional network-wide peer identifier. */
+  oderId?: string;
+  /** Login username (best effort; may be synthesized from display name). */
+  username: string;
+  /** Human-readable display name shown in the UI. */
+  displayName: string;
+  /** Optional avatar URL. */
+  avatarUrl?: string;
+  /** Role within the room/server. */
+  role: UserRole;
+  /** Epoch timestamp (ms) when the member first joined. */
+  joinedAt: number;
+  /** Epoch timestamp (ms) when the member was last seen online. */
+  lastSeenAt: number;
+}
+
 /**
  * A communication channel within a server (either text or voice).
  */
@@ -141,6 +166,8 @@ export interface Room {
   permissions?: RoomPermissions;
   /** Text and voice channels within the server. */
   channels?: Channel[];
+  /** Persisted member roster, including offline users. */
+  members?: RoomMember[];
 }
 
 /**
@@ -307,6 +334,9 @@ export type ChatEventType =
   | 'room-settings-update'
   | 'voice-state'
   | 'chat-inventory-request'
+  | 'member-roster-request'
+  | 'member-roster'
+  | 'member-leave'
   | 'voice-state-request'
   | 'state-request'
   | 'screen-state'
@@ -362,6 +392,8 @@ export interface ChatEvent {
   role?: UserRole;
   /** Updated channel list. */
   channels?: Channel[];
+  /** Synced room member roster. */
+  members?: RoomMember[];
 }
 
 /**