* add query_incomplete_rankings()
* Add SQL queries for TreeManager task selection
* first working version of TreeManager.next_task()
* remove old generate_task(), add mandatory_labels to text_labels task
* Add ConversationMessage list to Ranking tasks
* add more sophisticated sql queries to find extendible trees
* add TreeManager.query_extendible_parents()
* fix task validation, seed data insertion (reviewed)
* provide user for task selection in text-frontend
* enter 'growing' state
* enter 'aborted_low_grade' state
* enter 'ranking' state
* check tree 'growing' state upon relpy insertion
* exclude user from labeling their own messages (added DEBUG_ALLOW_SELF_LABELING setting)
* add DEBUG_ALLOW_SELF_LABELING to docker-compose.yaml
* fix ranking submission
* add query_tree_ranking_results()
* add ranked_message_ids to RankingReactionPayload
* fix reply_messages instead of prompt_messages
* incorment 'ranking_count' of ranked replies
* added logic to check_condition_for_scoring_state
* changes to msg_tree_state_machine
* pre-commit changes
* enter 'ready_for_scoring' state
* re-add HF embedding call (lost during merge)
* use prepare_conversation() helper for seed-data creation
* Partially add user specified task selection
Co-authored-by: Daniel Hug <danielpatrickhug@gmail.com>