Implement user session management and JWT refresh tokens

Added user session models, interfaces, repository, and service for managing user sessions and refresh tokens. Refactored authentication flow to return user objects and open sessions with device info, supporting refresh token generation and validation. Updated JWT configuration to separate access and refresh options, and refactored related tests and API contracts. Improved media upload handling and error logging. Migrated dependency references and DI registrations accordingly.

Govor.Application/Services/Authentication/AuthService.cs

@@ -30,7 +30,7 @@ public class AuthService : IAccountService
         _usernameValidator = usernameValidator;
     }
     
-    public async Task<string> RegistrationAsync(string name, string password, Invitation invitation)
+    public async Task<User> RegistrationAsync(string name, string password, Invitation invitation)
     {
         _usernameValidator.Validate(name);
         
@@ -55,11 +55,11 @@ public class AuthService : IAccountService
         
         await SetRole(user, invitation);
         
-        return await _jwtService.GenerateJwtTokenAsync(user);
+        return user;
     }
 
 
-    public async Task<string> LoginAsync(string name, string password)
+    public async Task<User> LoginAsync(string name, string password)
     {
         if (await _usersRepository.ExistsUsernameAsync(name) == false)
             throw new UserNotRegisteredException(name);
@@ -69,9 +69,34 @@ public class AuthService : IAccountService
         if (_passwordHasher.Verify(password, user.PasswordHash) == false)
             throw new LoginUserException();
         
-        return await _jwtService.GenerateJwtTokenAsync(user);
+        return user;
     }
+    
+    /*
+    public async Task<string> RefreshTokenAsync(string refreshToken)
+    {
+        try
+        {
+            var principal = _jwtService.GetPrincipalFromExpiredToken(refreshToken);
+        
+            var userId = Guid.Parse(principal?.FindFirst("userId")?.Value ?? string.Empty);
 
+            var storedTokens = await _userSessionsRepository.GetUserTokensAsync(userId);
+        
+            if (!storedTokens.Contains(refreshToken))
+                throw new UnauthorizedAccessException("Invalid refresh token");
+
+            var user = await _usersRepository.FindByIdAsync(userId);
+            var newAccessToken = await _jwtService.GenerateAccessTokenAsync(user);
+            return newAccessToken;
+        }
+        catch (SecurityTokenException ex)
+        {
+            throw new InvalidOperationException("Invalid refresh token", ex);
+        }
+    }
+    */
+    
     private async Task SetRole(User user, Invitation invitation)
     {
         if(invitation.IsAdmin)