Fix mediator

src/Managing.Infrastructure.Database/PostgreSql/PostgreSqlUserRepository.cs

@@ -86,6 +86,27 @@ public class PostgreSqlUserRepository : IUserRepository
         await _context.SaveChangesAsync().ConfigureAwait(false);
     }
 
+    public async Task<IEnumerable<User>> GetAllUsersAsync()
+    {
+        try
+        {
+            await EnsureConnectionOpenAsync();
+            
+            var userEntities = await _context.Users
+                .AsNoTracking()
+                .ToListAsync()
+                .ConfigureAwait(false);
+            
+            return userEntities.Select(PostgreSqlMappers.Map);
+        }
+        catch (Exception)
+        {
+            // If there's an error, try to reset the connection
+            await SafeCloseConnectionAsync();
+            throw;
+        }
+    }
+
     public async Task UpdateUser(User user)
     {
         try