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

[err0r522]

Goal

Deploy OWASP Juice Shop locally, make a triage report documenting security issues and a PR template for future submissions.

Changes

• Added PULL_REQUEST_TEMPLATE.md for PRs.
• Added lab1.md and a screenshot for this lab submission.

Testing

# local deployment
docker run -d --name juice-shop -p 127.0.0.1:3000:3000 bkimminich/juice-shop:v20.0.0

# healthcheck
docker ps --filter name=juice-shop --format 'table {{.Names}}\t{{.Status}}\t{{.Ports}}'
curl -s -o /dev/null -w "HTTP %{http_code}\n" http://127.0.0.1:3000
curl -s http://127.0.0.1:3000/api/Products | jq '.data | length'
curl -s http://127.0.0.1:3000/rest/admin/application-version | jq

The Juice Shop was deployed locally. Curl requests returned HTTP 200 and expected content. For more details check submissions/lab1.md.

Artifacts & Screenshots

A PR example that uses the PR template.

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Checklist

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