feat(docs): implement comprehensive Chat and ChatId schemas for Swagger (#103)

* feat(docs): add ChatId schema definition to swagger.json

* feat(docs): integrate ChatId and define base of Chat schema.

* feat(docs): add response schema for chat listing

swagger.js

@@ -80,6 +80,28 @@ const doc = {
     GetSessionsResponse: {
       success: true,
       result: ['session1', 'session2']
+    },
+    ChatId: {
+      server: 'c.us | g.us',
+      user: '1234567890',
+      _serialized: '1234567890@c.us',
+    },
+    Chat: {
+      id: { $ref: '#/definitions/ChatId' },
+      name: 'John Doe',
+      isGroup: false, 
+      unreadCount: 0,
+      timestamp: 1770140061,
+      archived: false,
+      pinned: false,
+      isMuted: false,
+      muteExpiration: 0,
+      // Add other chat properties as needed after create definitions
+    },
+    GetChatsResponse: {
+      success: true,
+      chats: [ { $ref: '#/definitions/Chat' } ],
+      error: 'error message if any',
     }
   }
 }