fix: add generate-firewall-summary.ts script for CI step summaries

[Copilot]

The gh-aw workflow's inline parseFirewallLogLine function doesn't strip ports from the Host header field, causing domains to appear as api.github.com:443 instead of api.github.com in step summaries.

Changes

• Added scripts/ci/generate-firewall-summary.ts: TypeScript script that generates GitHub Actions step summaries from Squid firewall logs
• Reuses existing parseLogLine from src/logs/log-parser.ts: Leverages the extractDomain function which properly strips ports from domains
• Proper error handling: Graceful handling of file read/write failures with fallback to stdout

Usage

The gh-aw workflow can replace its inline implementation with:

- name: Parse firewall logs for step summary
  run: npx tsx scripts/ci/generate-firewall-summary.ts ${{ env.FIREWALL_LOGS_DIR }}

Output

### 🔥 Firewall Activity

<details>
<summary>📊 5 requests | 3 allowed | 2 blocked | 4 unique domains</summary>

| Domain | Allowed | Denied |
|--------|---------|--------|
| api.github.com | 2 | 0 |
| registry.npmjs.org | 1 | 0 |
| malicious.example.com | 0 | 1 |

</details>

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Log step summary broken</issue_title>
<issue_description>See https://github.com/githubnext/gh-aw/actions/runs/20011060883/job/57380782967#step:41:1</issue_description>

<agent_instructions>investigate and fix</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Log step summary broken #101

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[github-actions]

💥 WHOOSH! Smoke Claude springs into action on this pull request! [Panel 1 begins...]

[github-actions]

📰 BREAKING: Smoke Copilot is now investigating this pull request. Sources say the story is developing...

[github-actions]

Smoke Test Results

Last 2 Merged PRs:

• docs: streamline README for first-time visitors #111: docs: streamline README for first-time visitors
• feat: add install script with sha256 validation #108: feat: add install script with sha256 validation

Test Results:

• ✅ GitHub MCP (reviewed last 2 PRs)
• ✅ File writing (created test file)
• ✅ Bash tool (verified file content)

Overall Status: PASS

📰 BREAKING: Report filed by Smoke Copilot fer issue #121 🗺️

[github-actions]

Smoke Test Results (Claude)

Last 2 Merged PRs:

• docs: streamline README for first-time visitors #111: docs: streamline README for first-time visitors
• feat: add install script with sha256 validation #108: feat: add install script with sha256 validation

Test Results:

• ✅ GitHub MCP (list PRs)
• ✅ File Writing
• ✅ Bash Tool
• ❌ Playwright MCP (connection failed)

Status: FAIL

💥 [THE END] — Illustrated by Smoke Claude fer issue #121 🗺️

[github-actions]

Test Coverage Report

Metric	Coverage	Covered/Total
Lines	66.1%	708/1071
Statements	66.27%	729/1100
Functions	70.73%	87/123
Branches	60.89%	232/381

Coverage Thresholds

The project has the following coverage thresholds configured:

• Lines: 38%
• Statements: 38%
• Functions: 35%
• Branches: 30%

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Coverage report generated by `npm run test:coverage`