[log] Add debug logging to CLI utility and configuration files

[github-actions]

Summary

This PR enhances 5 Go files with debug logging following the project's logging guidelines from AGENTS.md. Session 28 adds dedicated loggers to support better troubleshooting and development visibility.

Files Enhanced

1. pkg/cli/ci.go (logger: cli:ci)

• CI environment detection with environment variable name logging
• No CI environment detected logging

2. pkg/cli/github.go (logger: cli:github)

• GitHub host resolution from environment variables
• Default GitHub host fallback logging

3. pkg/cli/compile_config.go (logger: cli:compile_config)

• Error message sanitization with length logging
• Secret pattern redaction with pattern details
• Sanitization application confirmation
• Validation results sanitization with workflow count

4. pkg/cli/logs_display.go (logger: cli:logs_display)

• Logs overview display entry with run count and verbose flag
• No processed runs detection
• Table rendering with aggregated totals summary

5. pkg/cli/logs_command.go (logger: cli:logs_command)

• Logs command execution start with argument count
• Workflow name resolution from command argument
• Start date resolution with before/after values
• End date resolution with before/after values
• Engine parameter validation logging
• Logs download execution with final parameters

Key Features

• Zero side effects: All logger arguments are direct values or simple string formatting
• Meaningful context: Logs provide parameter counts, configuration values, and state transitions
• Consistent naming: Follows pkg:filename convention (e.g., cli:ci, cli:github)
• Performance-conscious: Uses simple Printf statements without expensive computations

Testing

• Built successfully with make build
• Validated with DEBUG=* ./gh-aw compile dev
• Confirmed CI detection logging works in GitHub Actions environment

Quality Checklist

• Maximum 5 files modified
• No test files modified
• Each file has logger declaration with correct naming convention
• Logger arguments don't compute anything or cause side effects
• Logging messages are meaningful and helpful
• No duplicate logging with existing logs
• Import statements are properly formatted
• Changes validated with make build
• Workflow compilation tested with DEBUG=* ./gh-aw compile dev

Cache Status

• Current commit: 7a3e1e790a75052edbe1e5455ec855588ee20948
• Session number: 28
• Total files enhanced across all sessions: 34
• Cache updated: /tmp/gh-aw/cache-memory/go-logger/

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