feat: add edit_reason_code and close_reason_code (#29609)

Add `edit_reason_code` field to both `Comments` and `Threads`, making it
editable for anyone who can also edit `raw_body`.

Add `close_reason_code` field to `Threads`, and make it editable by
anyone who can also edit `closed`.

openedx/core/djangoapps/django_comment_common/comment_client/comment.py

@@ -14,12 +14,12 @@ class Comment(models.Model):
         'endorsed', 'parent_id', 'thread_id', 'username', 'votes', 'user_id',
         'closed', 'created_at', 'updated_at', 'depth', 'at_position_list',
         'type', 'commentable_id', 'abuse_flaggers', 'endorsement',
-        'child_count',
+        'child_count', 'edit_history',
     ]
 
     updatable_fields = [
         'body', 'anonymous', 'anonymous_to_peers', 'course_id', 'closed',
-        'user_id', 'endorsed', 'endorsement_user_id',
+        'user_id', 'endorsed', 'endorsement_user_id', 'edit_reason_code',
     ]
 
     initializable_fields = updatable_fields

openedx/core/djangoapps/django_comment_common/comment_client/thread.py

@@ -21,19 +21,20 @@ class Thread(models.Model):
         'highlighted_body', 'endorsed', 'read', 'group_id', 'group_name', 'pinned',
         'abuse_flaggers', 'resp_skip', 'resp_limit', 'resp_total', 'thread_type',
         'endorsed_responses', 'non_endorsed_responses', 'non_endorsed_resp_total',
-        'context', 'last_activity_at',
+        'context', 'last_activity_at', 'closed_by', 'close_reason_code', 'edit_history',
     ]
 
     # updateable_fields are sent in PUT requests
     updatable_fields = [
         'title', 'body', 'anonymous', 'anonymous_to_peers', 'course_id', 'read',
-        'closed', 'user_id', 'commentable_id', 'group_id', 'group_name', 'pinned', 'thread_type'
+        'closed', 'user_id', 'commentable_id', 'group_id', 'group_name', 'pinned', 'thread_type',
+        'close_reason_code', 'edit_reason_code',
     ]
 
     # metric_tag_fields are used by Datadog to record metrics about the model
     metric_tag_fields = [
         'course_id', 'group_id', 'pinned', 'closed', 'anonymous', 'anonymous_to_peers',
-        'endorsed', 'read'
+        'endorsed', 'read',
     ]
 
     # initializable_fields are sent in POST requests