feat: bootstrap repo — enforcement layer + #685 perf capture

Enforcement (check-rules/hooks/shellcheck) per ADOPTING pattern; perf/ SoR
from the #685 session (memcensus, pg role-caps SQL, applied sysctl, planned
daemon.json); questions-v1 (API token + dockerd window asks).

Meat + verification: https://projects.knownelement.com/issues/727#note-3913

scripts/pre-push

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+# pre-push — full rule audit + clean-working-tree gate before pushing.
+# Installed via: bash scripts/setup-hooks.sh
+#
+# Combines two proven policies observed across projects:
+#   - KNEL-AIMiddleware: block push if the working tree is dirty.
+#   - RCEO-PersonalAssistant: block push if the full test suite fails.
+set -euo pipefail
+
+REPO_ROOT="$(git rev-parse --show-toplevel)"
+cd "$REPO_ROOT"
+
+echo "pre-push: running full rule audit..."
+
+# Full audit (non-fast): runs the slow test suite via `make test` if present.
+if ! bash scripts/check-rules.sh --quiet; then
+    echo ""
+    echo "pre-push audit FAILED. Push blocked."
+    echo "Re-run with output:  bash scripts/check-rules.sh"
+    echo "Bypass:              git push --no-verify   (emergencies only)"
+    exit 1
+fi
+
+echo "pre-push: all rules and tests passed."
+exit 0