claude --worktree: .claude/ subdirectories (skills, agents, docs, rules) not copied to worktree

Bug Description

When using claude --worktree, the generated worktree's .claude/ directory only contains settings.local.json. All other subdirectories (skills/, agents/, docs/, rules/) and settings.json are missing, causing skills and custom agents to be unavailable in the worktree session.

Steps to Reproduce

1. Set up a project with .claude/ directory containing skills, agents, docs, and rules
2. Run claude --worktree
3. Check the worktree's .claude/ directory

Expected Behavior

The worktree's .claude/ directory should contain (or symlink to) all subdirectories from the main repo's .claude/:

• skills/
• agents/
• docs/
• rules/
• settings.json
• settings.local.json

Actual Behavior

Only settings.local.json is present in the worktree's .claude/ directory:

Main repo .claude/:

.claude/
├── agents/
│   ├── code-worker.md
│   └── grafana-log-search.md
├── docs/
│   ├── coding-guidelines.md
│   └── go-patterns.md
├── rules/
│   ├── db-schema.md
│   └── sync-rag-voicealf.md
├── settings.json
├── settings.local.json
├── skills/
│   ├── cleanup-stale-/
│   ├── commit-push-pr/
│   ├── llm-test/
│   └── worktree/
└── worktrees/

Worktree .claude/:

.claude/
└── settings.local.json

Environment

• Claude Code version: 2.1.51
• OS: macOS (Darwin 25.2.0)
• Shell: zsh

Suggested Fix

Either copy or symlink the skills/, agents/, docs/, rules/, and settings.json from the source project's .claude/ directory when creating the worktree's .claude/ directory.