Add 12 card management tools:
- trello_create_card — create a card on a list
- trello_card_details — view card with members, checklists, comments
- trello_update_card — update title, description, due date
- trello_move_card — move card to a different list
- trello_archive_card — archive a card
- trello_assign_member / trello_remove_member — member management
- trello_add_comment / trello_delete_comment — comments
- trello_add_checklist_item / trello_toggle_checklist_item / trello_delete_checklist_item
Also adds _delete() helper on TrelloClient for DELETE verbs.
73 total tests — all passing.
Issue: #4
Marko (Hermes Implementer)
0131b25c8b