🔒️(backend) prevent accessing files if they are not ready

With the addition of the ANALYSING state
files could be accessed in the short time they
were in that state.
We now require files to be in ready.

Also adds missing frontend types (no impact).

src/backend/core/tests/files/test_api_files_media_auth.py

@@ -86,7 +86,11 @@ def test_api_files_media_get_own():
     assert response.content.decode("utf-8") == "my prose"
 
 
-def test_api_files_media_auth_file_pending():
+@pytest.mark.parametrize(
+    "rejecting_status",
+    [models.FileUploadStateChoices.PENDING, models.FileUploadStateChoices.ANALYZING],
+)
+def test_api_files_media_auth_rejects(rejecting_status):
     """
     Users who have a specific access to an file, whatever the role, should not be able to
     retrieve related attachments if the file is not ready.
@@ -97,7 +101,7 @@ def test_api_files_media_auth_file_pending():
 
     file = factories.FileFactory(
         type=models.FileTypeChoices.BACKGROUND_IMAGE,
-        upload_state=models.FileUploadStateChoices.PENDING,
+        upload_state=rejecting_status,
         creator=user,
     )