Add WSL log discovery for Claude and Codex

[jeongwookie]

Closes #1

Adds optional WSL log discovery for Claude Code and Codex.

Implemented

• Optional Settings toggle for WSL tracking.
• WSL distribution discovery, excluding Docker internal distributions.
• WSL UNC log path support for Claude and Codex logs.
• Linux cwd to Windows-readable path mapping.
• /mnt/<drive> path mapping back to Windows drive paths.
• Claude JSONL filename fallback for newer Claude Code logs where ~/.claude/sessions/*.json session IDs do not match ~/.claude/projects/**/*.jsonl filenames.
• Async WSL source discovery so enabling WSL tracking does not freeze the tray UI.

Validated locally

• Ubuntu-24.04 WSL.
• Real Codex CLI login and session.
• Real Claude Code login and session.
• Codex discovered as WSL Ubuntu-24.04 - Codex Exec.
• Claude discovered as WSL Ubuntu-24.04 - Terminal.
• npm test.
• npm run build.

Still needs validation

• Real VS Code Remote WSL workflow from an external user.
• Long-running watcher behavior on real WSL projects.

This PR is intentionally draft until at least one real VS Code Remote WSL user confirms the behavior.