plan-ceo-review: remove the handoff-note reader and cleanup for files nothing writes (s04 F6, s04 F7)

CEO handoff notes (*-ceo-handoff-*.md) have not been written since v0.11.5.1;
no template, resolver or bin script produces them. The reader cost a bash
call on every CEO run, depended on $SLUG/$BRANCH from another shell, and
looked under $GSTACK_STATE_ROOT where pre-state-root notes never lived.

W7a pin: test/skill-ceo-section-ordering.test.ts:320 sliced up to the
removed '## Handoff Note Cleanup' heading; it now slices to the next heading
('## Review Log') with the same assertions.
Note: the ceo-mode-option / ceo-mode-prerequisite PTY cases fail under the
image's Bun 1.3.14 with or without this change and pass under Bun 1.4.0.
expected red until the regeneration commit

plan-ceo-review/SKILL.md.tmpl

@@ -116,18 +116,6 @@ BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null | tr '/' '-' || echo 'no-br
 ```
 Read any `/office-hours` design doc as the problem, constraints and approach source of truth. `Supersedes:` marks a revised design.
 
-**Handoff note check** (reuses $SLUG and $BRANCH from the design doc check above):
-```bash
-eval "$(~/.claude/skills/gstack/bin/gstack-paths)"; : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /gstack-upgrade}"
-setopt +o nomatch 2>/dev/null || true  # zsh compat
-HANDOFF=$(ls -t "$GSTACK_STATE_ROOT"/projects/$SLUG/*-$BRANCH-ceo-handoff-*.md 2>/dev/null | head -1)
-[ -n "$HANDOFF" ] && echo "HANDOFF_FOUND: $HANDOFF" || echo "NO_HANDOFF"
-```
-In a separate shell, first recompute $SLUG and $BRANCH with the design-doc commands.
-Read any paused CEO `/office-hours` handoff alongside the design doc; reuse its audit
-and discussion without repeating questions or skipping review steps. Tell the user:
-"Found a handoff note from your prior CEO review session. I'll use that context to pick up where we left off."
-
 {{BENEFITS_FROM}}
 
 **Mid-session detection (0A):** If the user cannot articulate a stable problem, says "I'm not sure"

plan-ceo-review/sections/review-sections.md.tmpl

@@ -520,18 +520,6 @@ complete plan, report and summary as not persisted, then use **Gate outcome:
 Blocked**. This delivers the review content without claiming saved completion;
 skip Review Log, success telemetry and the next-skill handoff.
 
-## Handoff Note Cleanup
-
-After producing the Completion Summary, remove this branch's handoff notes only if the storage policy permits cleanup. Otherwise retain them and report that cleanup was not performed.
-
-```bash
-eval "$(~/.claude/skills/gstack/bin/gstack-paths)"; : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /gstack-upgrade}"
-setopt +o nomatch 2>/dev/null || true  # zsh compat
-# gstack-slug prints both SLUG and BRANCH; eval sets them in this shell.
-{{SLUG_EVAL}}
-rm -f "$GSTACK_STATE_ROOT"/projects/$SLUG/*-$BRANCH-ceo-handoff-*.md 2>/dev/null || true
-```
-
 ## Review Log
 
 Attempt these history writes only after the plan/report's successful write and

test/skill-ceo-section-ordering.test.ts

@@ -317,7 +317,7 @@ test('CEO output stages prepare body before report and publish only after verifi
   expect(section).toContain('no stage depends on a completion log written later');
   expect(section).toContain('After the report Read-back gate passes');
   expect(section).toContain('Do not append it after the report in the file');
-  const chat = section.slice(section.indexOf('If no plan/report write is permitted'), section.indexOf('## Handoff Note Cleanup'));
+  const chat = section.slice(section.indexOf('If no plan/report write is permitted'), section.indexOf('## Review Log'));
   expect(chat).toContain('complete plan, report and summary as not persisted, then use **Gate outcome: Blocked**');
   expect(chat).toContain('without claiming saved completion');
   expect(chat).toContain('skip Review Log, success telemetry and the next-skill handoff');