refactor(stop): rewrite SKILL.md frontmatter/heading/prose for stop semantics (FW-13, FW-03)

- frontmatter description: 'Terminate...mark it terminated' → 'Stop...hard=terminated, stop options=stopped'
- heading: 'Multi-Agent Delete' → 'Multi-Agent Stop'
- tags: delete → stop
- state machine diagram: delete → stop
- prose: soft/hard delete → soft/hard stop throughout
- stop_session.sh: comments + echo 'delete complete' → 'stop complete'
- create/SKILL.md: companion list 'delete' → 'stop' (2 locations)
- preserved: status=terminated (valid YAML value), terminated_at field, --purge-conversation semantics

skills/tmux-agent-orchestrate-stop/scripts/stop_session.sh

@@ -12,7 +12,7 @@
 #                       격리된* conversation artifact 만 삭제 (P0-C). 전역
 #                       agent_identities 를 참조하지 않음. resume 불가.
 #
-# Stop extension (Option A — delete 확장, 새 6번째 스킬 없이 stop 의미론 흡수):
+# Stop extension (Option A — stop 확장, 새 6번째 스킬 없이 stop 의미론 흡수):
 #   --capture-id   — kill 직전에 이 워크스페이스의 conversation id 를 row 에 확정
 #                    기록 (claude_session_id_own / agy_conversation_id_own) →
 #                    다음 resume 이 tier-1(race-free) 로 복원. find_workspace_uuid
@@ -50,7 +50,7 @@ EOF
 
 SESSION_NAME=""
 AGENT=""
-MODE="hard"   # "delete" 의 자연스러운 의미 = tmux 까지 종료
+MODE="hard"   # "stop" 의 자연스러운 의미 = tmux 까지 종료
 PURGE=0
 YES=0
 CAPTURE_ID=0
@@ -308,7 +308,7 @@ echo
 if [ "$STOP_MODE" = "1" ]; then
   echo "=== stop complete ==="
 else
-  echo "=== delete complete ==="
+  echo "=== stop complete ==="
 fi
 echo "  session:  $SESSION_NAME"
 echo "  agent:    $AGENT"