This PR implements git patch generation for agentic workflows as requested in issue #133, with enhanced functionality based on code review feedback.

Git Patch Generation Features

The feature captures all changes made during workflow execution and makes them available as downloadable artifacts, with intelligent handling of scenarios where no changes occur.

Enhanced Workflow Compiler

• Added generateGitPatchStep() function that executes after agentic execution
• New: Runs git status first to show current repository state for debugging
• Stages any unstaged files with git add -A
• Uses ${{ github.sha }} as the reference point for patch generation
• Enhanced: Only creates patch files when actual changes are detected
• Improved: Upload step runs conditionally using hashFiles() to check file existence
• Refined: Uses if-no-files-found: ignore instead of warn for cleaner workflow output
• Both generation and upload steps run with appropriate conditional logic to ensure execution even on failures

Logs Command Enhancement

• Enhanced artifact detection to recognize and report aw.patch files
• Added verbose output showing patch file size when found
• Updated help documentation to include git patch in the list of downloaded artifacts

Test-Claude Workflow Enhancement

Enhanced the test-Claude workflow to generate inspirational quotes for developers:

• Added random quote generation task that executes after PR analysis and haiku creation
• Quotes focus on software development, coding, and technology themes
• Formatted in markdown with proper attribution to "Claude AI"
• Appends to a quote.md file with separator for multiple quotes
• Uses the Write tool for file operations

Example Workflow Steps Generated

- name: Generate git patch of changes
  if: always()
  run: |
    # Check current git status
    echo "Current git status:"
    git status
    
    # Stage any unstaged files
    git add -A || true
    
    # Get the initial commit SHA from when the workflow started
    INITIAL_SHA="${{ github.sha }}"
    
    # Check if there are any changes since the initial commit
    if git diff --quiet "$INITIAL_SHA" HEAD; then
      echo "No changes detected since initial commit"
      echo "Skipping patch generation - no changes to create patch from"
    else
      echo "Changes detected, generating patch..."
      git format-patch "$INITIAL_SHA"..HEAD --stdout > /tmp/aw.patch
      echo "Patch file created at /tmp/aw.patch"
      ls -la /tmp/aw.patch
    fi

- name: Upload git patch
  if: always() && hashFiles('/tmp/aw.patch') != ''
  uses: actions/upload-artifact@v4
  with:
    name: aw.patch
    path: /tmp/aw.patch
    if-no-files-found: ignore

Key Improvements

• Status Monitoring: Added git status command for better debugging visibility
• Conditional Creation: Skips patch file creation when no changes exist, avoiding empty artifacts
• Smart Upload: Only uploads when patch files actually exist using hashFiles() condition
• Clean Output: Uses ignore setting to prevent warnings about missing files in normal scenarios

Testing

• Added comprehensive test suite validating patch generation steps
• Tests verify correct step ordering, git commands, and artifact configuration
• Updated tests to validate new conditional logic and status checking
• All existing tests continue to pass
• Verified functionality across different agentic engines (Claude, Codex)

The implementation ensures that users can easily access and review all changes made by agentic workflows through the standard gh aw logs command, with patches downloaded alongside other artifacts only when changes actually occur. The enhanced test-Claude workflow now provides both code analysis and inspirational content for developers.

Fixes #133.

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