- Expand RESTRICTED_TYPE_SUBTYPES to include story/feature, story/improvement,
story/refactor, and story/None (all story subtypes)
- Add FULLY_RESTRICTED_TYPES fast-path set for entire-type blocking
- Update _validate_task_type_subtype to block all story types via general
create endpoint with clear error message directing to Proposal Accept
- Add type/subtype validation to PATCH /tasks/{id} to prevent changing
existing tasks to story/* type via update
- Internal Proposal Accept flow unaffected (creates tasks directly via ORM)
zhi
08461dfdd3