core: b2c improvements p1 (#9257)

* add default app and restrict

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* also pass raw email token for custom email templates

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* revoke access token when user logs out

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* remigrate

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix tests

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add command to change user types

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add some docs

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* blankable

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* actually fix tests

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* update docs

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

---------

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

authentik/brands/models.py

@@ -51,6 +51,16 @@ class Brand(SerializerModel):
         Flow, null=True, on_delete=models.SET_NULL, related_name="brand_device_code"
     )
 
+    default_application = models.ForeignKey(
+        "authentik_core.Application",
+        null=True,
+        default=None,
+        on_delete=models.SET_DEFAULT,
+        help_text=_(
+            "When set, external users will be redirected to this application after authenticating."
+        ),
+    )
+
     web_certificate = models.ForeignKey(
         CertificateKeyPair,
         null=True,