Feature: Add "Authentication Method" to allow existing users to sign in with LDAP (#2143)

* adds authentication method for users

* fix db migration with postgres

* tests for auth method

* update migration ids

* hide auth method on user creation form

* (docs): Added documentation for the new authentication method

* update migration

* add  to auto-form instead of having hidden fields

tests/integration_tests/user_tests/test_user_password_reset_service.py

@@ -4,6 +4,7 @@ import pytest
 from fastapi.testclient import TestClient
 
 from mealie.db.db_setup import session_context
+from mealie.schema.user.user import PrivateUser
 from mealie.services.user_services.password_reset_service import PasswordResetService
 from tests.utils import api_routes
 from tests.utils.factories import random_string
@@ -56,3 +57,24 @@ def test_password_reset(api_client: TestClient, unique_user: TestUser, casing: s
     # Test successful password reset
     response = api_client.post(api_routes.users_reset_password, json=payload)
     assert response.status_code == 400
+
+
+@pytest.mark.parametrize("casing", ["lower", "upper", "mixed"])
+def test_password_reset_ldap(ldap_user: PrivateUser, casing: str):
+    cased_email = ""
+    if casing == "lower":
+        cased_email = ldap_user.email.lower()
+    elif casing == "upper":
+        cased_email = ldap_user.email.upper()
+    else:
+        for i, letter in enumerate(ldap_user.email):
+            if i % 2 == 0:
+                cased_email += letter.upper()
+            else:
+                cased_email += letter.lower()
+        cased_email
+
+    with session_context() as session:
+        service = PasswordResetService(session)
+        token = service.generate_reset_token(cased_email)
+        assert token is None