fix(kvb-org-queue): restart holders on stale queue code; link host skills into projects

Every holder judges the shared queue.json with its own loaded code, so the project copies from 2026-11-07 (no RAM/CPU budget) granted heavy jobs on the slot limit alone and overloaded the host at 18:24. Each entry now stamps a hash of queue.py and the sibling scripts it loads; a poll that finds other code installed in ~/.agents/skills leaves the queue ungranted and re-execs the same hold with the installed queue.py, on the realpath interpreter, with signals reset and a caught signal ending the hold instead. queue.py list prefixes entries on other or unstamped code. A project install now symlinks every skill the global install holds instead of copying it, so the project hooks and ../ references stay valid and one host runs one version.

🎯 Fix: 92 %
💥 Break: 4 %
💸 Cost: 100 %
⏱️ Time: 100 %
🛡️ Security: 100 %
🏆 Score: 88
🚦 Gate: ✅ 90/5, cost and time <= 100, security 100 %

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/install.sh

@@ -2,7 +2,8 @@
 # Render the skills from skills-lock.json and copy them into TARGET.
 # TARGET defaults to $HOME (global install); pass a project root to
 # equip that project. Skills land in <TARGET>/.agents/skills and are
-# mirrored to <TARGET>/.claude/skills.
+# mirrored to <TARGET>/.claude/skills. A project install links every skill
+# the global install in $HOME already holds to that copy instead.
 set -euo pipefail
 
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
@@ -38,11 +39,22 @@ if [[ -d "${REPO_ROOT}/skills" ]]; then
 	cp -a "${REPO_ROOT}/skills/." "${src}/"
 fi
 
-for dst in "${TARGET}/.agents/skills" "${TARGET}/.claude/skills"; do
+for root in .agents/skills .claude/skills; do
+	dst="${TARGET}/${root}"
 	log "skills: copying -> ${dst}"
 	mkdir -p "${dst}"
 	find "${dst}" -mindepth 1 -delete
 	cp -a "${src}/." "${dst}/"
+	if [[ ! "${TARGET}" -ef "${HOME}" ]]; then
+		log "skills: linking in ${dst} what ${HOME}/${root} already holds"
+		for skill in "${dst}"/*; do
+			global="${HOME}/${root}/${skill##*/}"
+			if [[ -e "${global}" ]]; then
+				rm -rf "${skill}"
+				ln -s "${global}" "${skill}"
+			fi
+		done
+	fi
 done
 
 settings="${TARGET}/.claude/settings.local.json"