fix: Fix multiple bugs with new authentication flow

toju-app/src/app/shared-kernel/message.models.ts

@@ -26,6 +26,8 @@ export interface Message {
   isDeleted: boolean;
   replyToId?: string;
   linkMetadata?: LinkMetadata[];
+  /** Originating client instance when relayed through signaling for multi-device sync. */
+  clientInstanceId?: string;
 }
 
 export interface Reaction {

toju-app/src/app/shared-kernel/voice-state.models.ts

@@ -7,6 +7,8 @@ export interface VoiceState {
   volume?: number;
   roomId?: string;
   serverId?: string;
+  /** Install-scoped client id that currently owns active voice for this user. */
+  clientInstanceId?: string;
 }
 
 export interface ScreenShareState {