test(clone-app): add structural smoke test

plugins/clone-app/tests/smoke-structure.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -uo pipefail
+ROOT="$(cd "$(dirname "$0")/../../.." && pwd)"   # repo root
+P="$ROOT/plugins/clone-app"
+fail=0
+must_exist() { [[ -e "$1" ]] && echo "PASS exists: ${1#$ROOT/}" || { echo "FAIL missing: ${1#$ROOT/}"; fail=1; }; }
+must_exec()  { [[ -x "$1" ]] && echo "PASS exec: ${1#$ROOT/}"   || { echo "FAIL not exec: ${1#$ROOT/}"; fail=1; }; }
+
+must_exist "$P/.claude-plugin/plugin.json"
+must_exist "$P/skills/clone-app/SKILL.md"
+must_exist "$P/commands/clone-app.md"
+must_exist "$P/README.md"
+for s in extract-package.sh download-apk.sh resolve-re-scripts.sh; do
+  must_exist "$P/skills/clone-app/scripts/$s"; must_exec "$P/skills/clone-app/scripts/$s"
+done
+for s in scrape-play-store.py check-appstore.py; do
+  must_exist "$P/skills/clone-app/scripts/$s"
+done
+for r in stack-recommendation-guide effort-estimation-guide infra-cost-guide report-template; do
+  must_exist "$P/skills/clone-app/references/$r.md"
+done
+
+# JSON validity
+python3 -c "import json;json.load(open('$P/.claude-plugin/plugin.json'));json.load(open('$ROOT/.claude-plugin/marketplace.json'))" \
+  && echo "PASS json valid" || { echo "FAIL json invalid"; fail=1; }
+
+# clone-app present in marketplace
+python3 -c "
+import json;d=json.load(open('$ROOT/.claude-plugin/marketplace.json'))
+names=[p['name'] for p in d['plugins']]
+assert 'clone-app' in names and 'android-reverse-engineering' in names
+print('PASS marketplace has both plugins')" || { echo "FAIL marketplace entries"; fail=1; }
+
+exit $fail