fix(simulation): apply PR #94 review suggestions

- validate_ron: add eligible_roles referential integrity check against
  defined RoleSpec.id values in zone-type templates
- v01-yaml-content-audit.md: fix grep path from data/templates to
  server/data/templates in the superseded-files verification command
- pre-commit hook: comment out nonexistent check-decision-ids script
  to stop per-commit warnings until the script is implemented

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.config/hooks/pre-commit

@@ -21,7 +21,8 @@ run_check() {
 
 # --- Checks ---
 run_check "tooling/check-fact-ids" "fact_id validation"
-run_check "tooling/check-decision-ids" "decision ID duplication"
+# TODO: uncomment when tooling/check-decision-ids is implemented
+# run_check "tooling/check-decision-ids" "decision ID duplication"
 
 # Run cargo audit only when Cargo.toml or Cargo.lock changed
 if git diff --cached --name-only | grep -qE '(Cargo\.toml|Cargo\.lock)$'; then