Implement Playwright step definitions for BDD staging tests

[Copilot]

This PR implements the initial step definitions in tests/staging/step_definitions/website_steps.js using Playwright for browser automation, replacing the placeholder implementations that returned 'pending'.

Key Changes

Added Playwright Integration:

• Added playwright as a devDependency
• Updated Dockerfile tests target to install Playwright browsers and system dependencies
• Configured Playwright with proper Chrome arguments for containerized environments

Implemented Step Definitions:

1. "Given the Staging site is started" - Verifies that the BASE_URL can be reached and returns a valid HTTP response
2. "When the index page is visited" - Navigates to the index page and ensures it loads without HTTP errors
3. "Then the Logo should be displayed in the top left corner" - Checks that favicon.png is displayed within a <nav> element

Environment Configuration:

• Added BASE_URL environment variable support with default value http://staging for Docker networking
• Handles redirects gracefully (staging service redirects to production via .htaccess)
• Added robust timeout handling (30s for navigation, 10s for element waits) suitable for Docker environments

Error Handling:

• Comprehensive error messages for debugging test failures
• Proper browser cleanup with BeforeAll/AfterAll hooks
• Graceful handling of network timeouts and element visibility

The implementation follows the existing Docker Compose setup where the staging service serves the built site and test service runs the BDD tests. The step definitions are compatible with the current workflow structure and will integrate seamlessly with GitHub Actions.

Fixes #237.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://storage.googleapis.com/builds/chromium/1181/chromium-linux.zip
  • Triggering command: /usr/local/bin/node /home/REDACTED/work/orionrobots.github.io/orionrobots.github.io/node_modules/playwright-core/lib/server/registry/oopDownloadBrowserMain.js (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[github-actions]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
❌ ACTION	actionlint	5		6	0	0.08s
✅ BASH	bash-exec	1		0	0	0.0s
✅ BASH	shellcheck	1		0	0	0.06s
⚠️ BASH	shfmt	1		1	0	0.0s
❌ C	cppcheck	8		8	0	0.27s
❌ CPP	cppcheck	8		8	0	0.28s
✅ JSON	npm-package-json-lint	yes		no	no	0.42s
✅ JSON	v8r	12		0	0	7.42s
❌ MARKDOWN	markdown-link-check	736		213	0	38.8s
✅ REPOSITORY	gitleaks	yes		no	no	14.34s
✅ REPOSITORY	git_diff	yes		no	no	0.56s
✅ REPOSITORY	grype	yes		no	no	33.01s
✅ REPOSITORY	secretlint	yes		no	no	42.6s
✅ REPOSITORY	syft	yes		no	no	1.68s
✅ REPOSITORY	trivy-sbom	yes		no	no	3.4s
✅ REPOSITORY	trufflehog	yes		no	no	4.74s
✅ XML	xmllint	1		0	0	189.99s
✅ YAML	v8r	13		0	0	7.17s

See detailed report in MegaLinter reports