* test(#4763): failing-first — replaced-record payload and executor --phase pins
* fix(#4763): surface the displaced session record and pass --phase from the executor decision loop
state record-session keeps its last-writer-wins write (the recorded single-slot
handoff design) but no longer displaces silently: when a non-empty Stopped At or
authored Resume File record is replaced, the payload carries the full prior text
under replacedRecord. Same-value rewrites, the insert path, and the #944
template-default DWIM are not displacements and report nothing.
The executor decision loop now passes --phase "${PHASE}" to state.add-decision,
matching execute-plan.md, so decisions stop inheriting whichever phase the
global pointer names (#4763 case 2). advance-plan is unchanged (#3311 by-design).
Emitted-Drift-Ack-Growth: gsd-executor.md — the decision loop gained its --phase guard and a comment naming why (#4763)
* docs(#4763): add the changeset fragment
* docs(#4763): backfill the changeset PR number
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Co-authored-by: sim <sim@local>
6a4984cf69