[docs] Update documentation for features from 2025-10-18

[dsyme]

Documentation Updates - 2025-10-18

This PR updates the documentation based on features merged in the last 24 hours.

Features Documented

• --append flag for workflow installation commands (from 🚀 Add --append flag to workflow installation commands #1905)
• github-token top-level configuration in workflow frontmatter (from Add support for top-level github-token configuration in workflow frontmatter #1913)

Changes Made

• Updated docs/src/content/docs/tools/cli.md:

  • Added --append flag documentation for gh aw add command
  • Added --append flag documentation for gh aw trial command
  • Included usage examples showing how to append custom content to workflows

• Updated docs/src/content/docs/reference/frontmatter.md:

  • Added new github-token section documenting the top-level GitHub token configuration
  • Documented the complete token precedence hierarchy (4 levels)
  • Added to the list of frontmatter elements
  • Cross-referenced the Security Guide for complete token management documentation

Merged PRs Referenced

• Update Claude Code to 2.0.22 and Copilot CLI to 0.0.344, add --disable-builtin-mcps flag #1921 - Update Claude Code to 2.0.22 and Copilot CLI to 0.0.344 (internal CLI version updates)
• [tidy] Fix code formatting in compiler.go #1919 - Fix code formatting in compiler.go (internal code formatting)
• Update CLI version checker workflow to install tools and discover new commands via --help #1917 - Update CLI version checker workflow to install tools and discover commands (internal workflow improvement)
• Fix Copilot CLI log parser to extract and display tools from new debug format #1914 - Fix Copilot CLI log parser (internal bug fix)
• Add support for top-level github-token configuration in workflow frontmatter #1913 - Add support for top-level github-token configuration ✅ Documented
• Add default concurrency pattern for non-special-case workflows #1910 - Add default concurrency pattern (internal concurrency changes)
• Verify Codex 0.47.0 upgrade completion - no changes needed #1909 - Verify Codex 0.47.0 upgrade completion (no changes needed)
• 🚀 Add --append flag to workflow installation commands #1905 - Add --append flag to workflow installation commands ✅ Documented
• Add prompt artifact upload step to compiled workflows #1904 - Add prompt artifact upload step (internal feature - prompt.txt artifact)
• [docs] docs: Remove bloat from concepts.md for improved clarity #1915 - Documentation cleanup (already a docs PR)

Notes

Several merged PRs contain internal changes that don't require user-facing documentation updates:

• CLI version updates (Update Claude Code to 2.0.22 and Copilot CLI to 0.0.344, add --disable-builtin-mcps flag #1921): Version numbers are tracked in code constants, not documentation
• Log parser improvements (Fix Copilot CLI log parser to extract and display tools from new debug format #1914): Internal parsing logic for better debugging
• Concurrency pattern changes (Add default concurrency pattern for non-special-case workflows #1910): Internal workflow generation improvements
• Code formatting ([tidy] Fix code formatting in compiler.go #1919): Internal code quality improvements
• Prompt artifact upload (Add prompt artifact upload step to compiled workflows #1904): Automatic feature that requires no user configuration

These changes improve the user experience without requiring documentation changes. Users will benefit from these improvements automatically.

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