feat: add ChannelID to conversation model and update related services and responses

web/lib/api/admin.ts

@@ -108,6 +108,7 @@ export type ConversationParticipant = {
 
 export type AdminConversation = {
   id: number
+  channelId: number
   externalSource: string
   externalId: string
   subject: string

web/lib/api/agent.ts

@@ -35,6 +35,7 @@ export type AgentConversationParticipant = {
 export type AgentConversation = {
   id: number
   aiAgentId?: number
+  channelId?: number
   customerId?: number
   externalSource: string
   externalId: string

web/lib/api/im.ts

@@ -33,6 +33,7 @@ export type ImConversationParticipant = {
 
 export type ImConversation = {
   id: number
+  channelId: number
   externalSource: string
   externalId: string
   subject: string