[WIP] Add daily test coverage improver workflow with firewall enabled

[Copilot]

Plan: Create Daily Test Coverage Improver firewall workflow

• Explore repository structure and understand firewall feature
• Understand the existing daily-test-improver.md workflow
• Run build and tests to verify current state
• Create daily-test-improver.firewall.md based on daily-test-improver.md with firewall enabled
• Verify the workflow compiles successfully
• Run tests to ensure no regressions
• Final validation

Implementation Complete

Created .github/workflows/daily-test-improver.firewall.md with the following changes:

• ✅ Added features: { firewall: true } to frontmatter
• ✅ All other configuration remains the same as the original workflow
• ✅ Workflow compiles successfully (256.2 KB lock file)
• ✅ All unit tests pass

Verification

The compiled workflow includes firewall-specific features:

1. AWF (Agentic Workflows Firewall) binary installation step
2. AWF cleanup steps
3. Copilot CLI wrapped with AWF using npx -y @github/copilot@0.0.350
4. Network filtering with allowed domains
5. Squid proxy logs collection and upload
6. Proper cleanup at the end

The firewall feature provides network isolation and monitoring for the agentic workflow execution.

Original prompt

Create Daily Test Coverage Improver firewall workflow with firewall enabled

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