* test(#3959): plan copies carry source names, prompt carries path anchors
Regression coverage: budget copies named gsd-review-plan-<plan-id>.md
(not a bare padded index), no bare-index copy survives, and the Plans
to Review template instructs a per-plan repo-relative #### path header.
Also corrects the stale -00 assertion to the source-named copy.
* fix(#3959): give review-prompt plans citable path anchors
The Plans to Review template now instructs a per-plan repo-relative ####
path header, and the budget copies are named gsd-review-plan-<plan-id>.md
instead of a bare padded index, restoring provenance for prompt-budget's
per-plan headers while keeping the trim glob intact.
Emitted-Drift-Ack-Growth: review.md — per-plan path-header instruction in Plans to Review + provenance-named copy loop (#3959)
* chore(#3959): backfill changeset pr number
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Co-authored-by: sim <sim@local>