[log] Add debug logging to runtime setup, repo-memory, run command, MCP server, and gateway

[github-actions]

Summary

Enhanced 5 Go files with meaningful debug logging statements following the project's logging guidelines from AGENTS.md. All files already had logger declarations, so this PR focuses on adding strategic logging calls to improve troubleshooting and development visibility.

Files Enhanced

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

   • Added logging for new runtime requirement additions with version tracking
   • Added logging for automatic UV → Python dependency detection and addition

2. pkg/workflow/repo_memory.go (workflow:repo_memory)

   • Added logging for default repo-memory configuration detection (nil value)
   • Added logging for boolean true/false configuration handling
   • Added logging for backward-compatible object-style configuration processing

3. pkg/cli/run_command.go (cli:run_command)

   • Added logging for workflow enable/disable state detection with workflow ID
   • Added logging for temporary workflow enablement operations
   • Added logging for workflow already-enabled state confirmation
   • Added logging for lock file discovery and validation

4. pkg/cli/mcp_server.go (mcp:server)

   • Added logging for MCP status tool execution with pattern and jq filter parameters
   • Added logging for MCP compile tool execution with comprehensive flag details

5. pkg/workflow/gateway.go (workflow:gateway)

   • Enhanced gateway configuration logging with port, container, command, and server count

Logging Characteristics

All logging statements follow project guidelines:

• ✅ Use existing logger declarations (no new loggers added)
• ✅ Log function parameters without side effects
• ✅ Log important state changes and control flow decisions
• ✅ Provide meaningful context for debugging
• ✅ No duplication of user-facing console messages
• ✅ Use log.Printf for formatted output with context

Validation

• ✅ Successfully compiled with make build
• ✅ Tested workflow compilation with DEBUG=* ./gh-aw compile dev
• ✅ Verified debug logging output appears correctly
• ✅ No compilation errors or warnings
• ✅ Cache updated with session 34 processing details

Example Debug Output

With DEBUG=workflow:runtime_setup enabled:

workflow:runtime_setup Detecting runtime requirements from workflow data
workflow:runtime_setup Applying runtime overrides for 0 configured runtimes
workflow:runtime_setup Detected 0 runtime requirements: []

With workflow that uses UV package manager:

workflow:runtime_setup UV detected without Python, automatically adding Python runtime
workflow:runtime_setup Adding new runtime requirement: python (version=)

Session Info

• Session: 34
• Files enhanced: 5
• Total project files enhanced: 49 (across all sessions)
• Commit: e140f2c

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