feat: harden SaaS authentication and authorization

Tiku.IntegrationTests/Api/CrmEndpointTests.cs

@@ -121,49 +121,20 @@ public sealed class CrmEndpointTests
         var phone = "13800002001";
         await factory.SeedAsync(
             new Tenant { Id = tenantId, Slug = tenantId.ToString("N"), Name = "CRM Tenant" },
-            new User { Id = userId, Phone = phone, Name = "CRM Admin" },
+            new User { Id = userId, Phone = phone, Name = "CRM Admin" }.WithTestPassword(),
             new TenantMembership
             {
                 TenantId = tenantId,
                 UserId = userId,
                 Role = TenantRole.TenantAdmin,
                 Status = MembershipStatus.Active
-            },
-            new UserIdentity
-            {
-                UserId = userId,
-                Provider = "password",
-                ProviderSubject = phone,
-                Phone = phone,
-                SecretPayload = CreateSecretPayload(new PasswordHasher().Hash("passw0rd!"))
             });
         return new LoginSeed(tenantId, userId, phone);
     }
 
     private static async Task LoginAsync(HttpClient client, LoginSeed seed)
     {
-        var loginResponse = await client.PostAsJsonAsync(
-            "/api/auth/login/password",
-            new PasswordLoginDto
-            {
-                TenantCode = seed.TenantId.ToString("N"),
-                Phone = seed.Phone,
-                Password = "passw0rd!"
-            });
-        loginResponse.EnsureSuccessStatusCode();
-        using var loginJson = await JsonDocument.ParseAsync(await loginResponse.Content.ReadAsStreamAsync());
-        var accessToken = loginJson.RootElement
-            .GetProperty("tokens")
-            .GetProperty("accessToken")
-            .GetString();
-        client.DefaultRequestHeaders.Authorization = new("Bearer", accessToken);
-    }
-
-    private static JsonElement CreateSecretPayload(string passwordHash)
-    {
-        using var document = JsonDocument.Parse(
-            $$"""{"passwordHash":{{JsonSerializer.Serialize(passwordHash)}}}""");
-        return document.RootElement.Clone();
+        client.UseAccessToken(await client.LoginAsTenantAsync(seed.TenantId, seed.Phone));
     }
 
     private sealed record LoginSeed(Guid TenantId, Guid UserId, string Phone);