Tracking: Worktree workflow improvements

[serabi]

Umbrella issue for improving the worktree + Claude Code session workflow.

High priority

• Add worktree cleanup UI — remove worktree + branch from TUI #38 — Worktree cleanup UI (remove worktree + branch from TUI)
• Add worktree management list view #39 — Worktree management list view
• Propagate post-create hook errors in launch flow #40 — Propagate post-create hook errors in launch flow

Medium priority

• Increase inferStatus terminal read window #41 — Increase inferStatus terminal read window
• Add dirty-worktree check before removal #42 — Dirty-worktree check before removal
• Clarify slot vs worktree lifecycle in UI #43 — Clarify slot vs worktree lifecycle in UI
• Add per-slot color customization for Claude Code panes #32 — Per-slot color customization for Claude Code panes

Low priority

• Quote ClaudeArgs properly in shell commands #44 — Quote ClaudeArgs properly in shell commands
• Add test coverage for worktree workflows #45 — Test coverage for worktree workflows