Decision of Max of 2026-10-20 and review 25921, point 3. The #393
changelog entries, the guide tip and docs.categories.tips (FR and EN)
now say a category that still takes input cannot become a parent, and
that an existing parent, no longer inputable, accepts new subcategories
as before. The parent_has_budget message and the tip say amounts of any
year count, to be set to zero in the grid year by year, and that a
template cannot be edited, only deleted; the tip adds that zeroing a
past year also takes its planned amounts out of Budget vs Actual.
architecture.md: the rule and its reason, the hierarchy rows now
carrying is_inputable, readCategoriesAgain after a reattachment (a
form open on the orphan itself keeps its old parent: known limit), and
the hook harness users presented as a count with the command that lists
them (21 on 2026-10-20), not as an exhaustive list (25921, point 6).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>