reenabled admin area; outfitted apps.lyric.models w. AbstractBaseUser instead of custom user class; many other fns & several models updated to accomodate, such as set_unusable_password() method to base user model; reset staging db to prepare for refreshed lyric migrations to accomodate for retrofitted pw field

src/apps/lyric/tests/unit/test_authentication.py

@@ -2,6 +2,7 @@ from django.http import HttpRequest
 from django.test import SimpleTestCase
 
 from apps.lyric.authentication import PasswordlessAuthenticationBackend
+from apps.lyric.models import User
 
 
 class SimpleAuthenticateTest(SimpleTestCase):
@@ -15,3 +16,16 @@ class SimpleAuthenticateTest(SimpleTestCase):
         result = PasswordlessAuthenticationBackend().authenticate(HttpRequest())
         self.assertIsNone(result)
 
+class UserPermissionsTest(SimpleTestCase):
+    def test_superuser_has_perm(self):
+        user = User(is_superuser=True)
+        self.assertTrue(user.has_perm("any.permission"))
+
+    def test_superuser_has_module_perms(self):
+        user = User(is_superuser=True)
+        self.assertTrue(user.has_module_perms("any_app"))
+
+    def test_non_superuser_has_no_perm(self):
+        user = User(is_superuser=False)
+        self.assertFalse(user.has_perm("any.permission"))
+