[log] Add debug logging to 5 Go files for improved troubleshooting

[github-actions]

Summary

This PR enhances 5 Go files with meaningful debug logging statements to improve troubleshooting and development visibility. All changes follow the project's logging guidelines from AGENTS.md.

Files Enhanced

1. pkg/workflow/claude_tools.go (workflow:claude_tools)

• Added logging for neutral tools expansion entry with input tools count
• Added expansion completion logging with result tools and Claude allowed count
• Added error detection logging for claude section in input
• Added conversion logging for neutral to Claude-specific format

2. pkg/cli/enable.go (cli:enable)

• Added entry logging for enable/disable workflows with workflow count and repo
• Added GitHub workflows status fetch with count logging
• Added workflows not found error logging
• Added target workflows processing count logging
• Added desired state already achieved detection logging

3. pkg/workflow/script_registry.go (workflow:script_registry)

• Added script registry creation logging
• Added GetActionPath lookups with results logging
• Added script filename collection from JavaScript sources logging

4. pkg/cli/dependency_graph.go (cli:dependency_graph)

• Added import extraction from file with parsing details logging
• Added frontmatter parsing for imports logging
• Added git root discovery with search path logging

5. pkg/cli/spec.go (cli:spec)

• Added repo spec version parsing logging
• Added GitHub URL format detection and parsing logging
• Added current directory repo resolution logging
• Added local workflow spec parsing with validation logging
• Added GitHub URL component extraction with logging

Logger Guidelines Compliance

All changes follow the project's logging guidelines:

• ✅ Each file already had a logger declaration with correct naming convention
• ✅ Logger arguments don't compute anything or cause side effects
• ✅ Logging messages are meaningful and helpful for debugging
• ✅ No duplicate logging with existing logs
• ✅ Used log.Enabled() checks for expensive debug info where appropriate
• ✅ Logged function entry for important operations
• ✅ Logged important control flow and state changes
• ✅ Logged error conditions with context

Testing & Validation

• ✅ Changes validated with make build (no compilation errors)
• ✅ Workflow compilation tested with DEBUG=* ./gh-aw compile dev
• ✅ Debug logging output verified for enhanced files
• ✅ No test files modified
• ✅ Maximum 5 files per PR constraint met

Cache Updated

Session 33 information saved to cache:

• processed-files.json updated with 5 new files (total: 44 files enhanced)
• last-run.json updated with current commit SHA and session details

Impact

These logging enhancements will help developers:

• Debug Claude tool expansion and configuration issues
• Troubleshoot workflow enable/disable operations
• Trace script registry lookups and bundling
• Understand dependency graph build and resolution
• Debug repository spec parsing and validation

All logging is only visible when DEBUG=* or specific logger names are enabled, so there's no impact on normal CLI output.

AI generated by Go Logger Enhancement