feat(lab1): juice shop deploy + PR template + triage report

[Philip-78]

Goal

Deploys OWASP Juice Shop locally, adds triage report, PR template, and CI smoke test.

Changes

• .github/PULL_REQUEST_TEMPLATE.md — PR template for all future labs
• .github/workflows/lab1-smoke.yml — CI smoke test workflow
• submissions/lab1.md — triage report with deployment details and surface observations

Testing

• docker ps confirmed juice-shop running on 127.0.0.1:3000
• curl -s -o /dev/null -w "HTTP %{http_code}\n" http://127.0.0.1:3000 returned HTTP 200
• /api/Products returned 46 products
• /rest/admin/application-version returned {"version": "20.0.0"}

Artifacts & Screenshots

• submissions/lab1.md — full triage report

---

• Title follows feat(labN): <topic> style
• No secrets or large temp files committed
• Submission file at submissions/lab1.md exists