[log] Add debug logging to container detection (internal/tty/container.go)

[github-actions]

Summary

Added debug logging to internal/tty/container.go to provide visibility into container environment detection.

Changes

• File: internal/tty/container.go
• Logger namespace: tty:container (following pkg:filename convention)
• Lines changed: +10 insertions
• Logging calls added: 5

Logging Coverage

The IsRunningInContainer() function now logs:

1. Function entry: "Detecting container environment"
2. Method 1 (/.dockerenv): "Container detected: /.dockerenv file exists"
3. Method 2 (/proc/1/cgroup): "Container detected: found container indicator in /proc/1/cgroup"
4. Method 3 (env var): "Container detected: RUNNING_IN_CONTAINER=true"
5. No detection: "No container environment detected"

Benefits

• Troubleshooting: Easily identify which container detection method succeeds or fails
• Debugging: Understand why containerization detection behaves differently in various environments
• Visibility: Track detection flow when DEBUG=tty:* is enabled

Testing

Enable debug logging to see container detection in action:

DEBUG=tty:* ./awmg --config config.toml

Quality Checklist

• ✅ Exactly 1 file modified (focused, single-file PR)
• ✅ No test files modified
• ✅ Logger declaration follows pkg:filename convention
• ✅ Logger arguments have no side effects
• ✅ Logging messages are meaningful and helpful
• ✅ No duplicate logging
• ✅ Import statements properly formatted
• ✅ Follows AGENTS.md logging guidelines

Related

Part of the ongoing effort to enhance debugging capabilities across the codebase with consistent, meaningful debug logging.

AI generated by Go Logger Enhancement