create_item_groups() ran a 26-record exists-check loop on every migrate
(the "Группа X уже существует, пропускаем" spam in migrate logs). Replace
with the master_data hash-diff sync: fast-paths via stored file hash, applies
only the delta otherwise.
Item Group is a tree doctype shared with ERPNext/user groups, so the sync
gains two options: is_tree=True (insert via db_insert, rebuild lft/rgt once
at the end) and manage_deletes=False (never delete rows absent from the JSON,
since the JSON is only the AZ tax-specific subset).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Replaces "Azerbaijan" with "Azərbaycan" in app description, README, and
the descriptions of the Tax Period Closing Settings fields. Country
master Link values (e.g. country_of_origin: Azerbaijan in item fixtures)
are kept as-is to preserve references.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>