feat(controller): add endpoint to retrieve last used receiver name by email

- Implemented `Get` endpoint in `EnvelopeReceiverController` to fetch the last used receiver's name by email.
- Added handling for successful and failed responses, including proper status codes and logging.

EnvelopeGenerator.GeneratorAPI/Controllers/EnvelopeReceiverController.cs

@@ -6,6 +6,7 @@ using Microsoft.AspNetCore.Mvc;
 namespace EnvelopeGenerator.GeneratorAPI.Controllers
 {
     [Route("api/[controller]")]
+    [Authorize]
     [ApiController]
     public class EnvelopeReceiverController : ControllerBase
     {
@@ -18,7 +19,6 @@ namespace EnvelopeGenerator.GeneratorAPI.Controllers
             _erService = envelopeReceiverService;
         }
                 
-        [Authorize]
         [HttpGet]
         public async Task<IActionResult> GetEnvelopeReceiver([FromQuery] int? min_status = null, [FromQuery] int? max_status = null, [FromQuery] int[]? ignore_status = null)
         {
@@ -49,5 +49,28 @@ namespace EnvelopeGenerator.GeneratorAPI.Controllers
                 return new StatusCodeResult(StatusCodes.Status500InternalServerError);
             }
         }
+
+        [HttpGet("receiver-name/{mail}")]
+        public async Task<IActionResult> GetReceiverName([FromRoute] string mail)
+        {
+            try
+            {
+                return await _erService.ReadLastUsedReceiverNameByMail(mail).ThenAsync(
+                                Success: res => res is null ? Ok(string.Empty) : Ok(res),
+                                Fail: IActionResult (msg, ntc) =>
+                                {
+                                    if (ntc.HasFlag(Flag.NotFound))
+                                        return NotFound();
+
+                                    _logger.LogNotice(ntc);
+                                    return StatusCode(StatusCodes.Status500InternalServerError);
+                                });
+            }
+            catch(Exception ex)
+            {
+                _logger.LogError(ex, "{message}", ex.Message);
+                return StatusCode(StatusCodes.Status500InternalServerError);
+            }
+        }
     }
 }

EnvelopeGenerator.Infrastructure/Repositories/EnvlopeReceiverRepository.cs

@@ -78,7 +78,7 @@ namespace EnvelopeGenerator.Infrastructure.Repositories
 
         public async Task<EnvelopeReceiver?> ReadLastByReceiver(string email)
         {
-            return await _dbSet.Where(er => er.Receiver!.EmailAddress == email).LastOrDefaultAsync();
+            return await _dbSet.Where(er => er.Receiver!.EmailAddress == email).OrderBy(er => er.EnvelopeId).LastOrDefaultAsync();
         }
     }
 }