When starting the stage store the last commit's sha as "from" in stage context record.
When finishing the stage store all commits between from and to (not including "from", including "to") as a list of commits belonging to stage.
Show this list for the user in the stage user representation description.

Problem: the rewrite_authors_on_worktree disrupts this logic by replacing commit's sha.
Solution: apply rewrite_authors_on_worktree explicitly to explicit list of commits after stage, not to the whole range from start to end. Replace list in the stage to the new one, returned by rewrite_authors_on_worktree

---PARAMETERS---
stage_count: 3
state: pending:plan
pr_url: milyin/zbobr#377
work_branch: zbobr_fix-76-show-comments-belonging-to-stage
signal: go_planning
max_stage_count: 20

---DEAD_CONTEXT---

---CONTEXT---

• zbobr:plan:configuring copilot gpt-5-mini 2026-04-21 15:47:45 +0200 _{prompt output}
  • ✅ no destination branch override needed _{ctx_rec_1}

• zbobr:plan:planning claude_planner claude-sonnet-4-6 2026-04-21 15:50:41 +0200 _{prompt output}

• zbobr:plan:planning copilot_planner claude-sonnet-4.6 2026-04-21 15:57:14 +0200 _{prompt output}
  • ✅ Implementation plan for tracking stage commits with SHA tracking and scoped auth _{ctx_rec_2}

• zbobr:plan:plan_review_adversarial copilot gpt-5.4 2026-04-21 16:15:22 +0200 _{prompt output}
  • ❌ The plan is not ready: it keeps a range-based author rewrite and would record th _{ctx_rec_3}