List the tag → build_id assignments for a template
Templates
List the tag → build_id assignments for a template
T08 Phase 10 console-extension: returns the per-tag build identity
(tag / build_id / created_at) so the console can render real
“default build” + “built at” columns instead of guessing build
identity from the tag string. Built-in templates are rejected at
the boundary (reject_builtin_template_ref) since their default
tag is the canonical pin and there is no separate build identity.
GET
List the tag → build_id assignments for a template