add(conversationSerivice):后端新增消息会话服务add(main)：完善主面板

backend/IM_API/Controllers/ConversationController.cs

@@ -0,0 +1,33 @@
+using IM_API.Dtos;
+using IM_API.Interface.Services;
+using IM_API.Models;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using System.Security.Claims;
+
+namespace IM_API.Controllers
+{
+    [Route("api/[controller]/[action]")]
+    [Authorize]
+    [ApiController]
+    public class ConversationController : ControllerBase
+    {
+        private readonly IConversationService _conversationSerivice;
+        private readonly ILogger<ConversationController> _logger;
+        public ConversationController(IConversationService conversationSerivice, ILogger<ConversationController> logger)
+        {
+            _conversationSerivice = conversationSerivice;
+            _logger = logger;
+        }
+        [HttpGet]
+        public async Task<IActionResult> List()
+        {
+            var userIdStr = User.FindFirstValue(ClaimTypes.NameIdentifier);
+            var list = await _conversationSerivice.GetConversationsAsync(int.Parse(userIdStr));
+            var res = new BaseResponse<List<Conversation>>(list);
+            return Ok(res);
+        }
+
+    }
+}