Code quality improvements and cleanup + Implemented ChatService

tests/chatsService.test.ts

@@ -0,0 +1,14 @@
+import {describe, expect, it} from "vitest";
+import {DatabaseMock} from "../src/mocks/storage/database";
+import {ChatService} from "../src/services/chatService";
+
+describe("ChatService Integration Testing", () => {
+    const CHAT_SERVICE_TESTING_USER_ID = "000000000000000000000000"
+    const CHAT_SERVICE_TESTING_TOKEN = "testingToken"
+    const service = new ChatService(CHAT_SERVICE_TESTING_USER_ID, CHAT_SERVICE_TESTING_TOKEN, new DatabaseMock(), () => {})
+
+    it('should get chats', async () => {
+        const chats = await service.get()
+        expect(chats[0].username).toBe("bob")
+    })
+})