docs: add worktree support to README and CLAUDE.md

- Add Worktree Support feature to README
- Add 🌲 emoji to emoji guide table
- Add worktree.ts to CLAUDE.md file tree
- Add main project name data source

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: say8425

CLAUDE.md

@@ -24,7 +24,8 @@ cc-statusline/
 │   │   ├── index.ts                # barrel re-export
 │   │   ├── branch.ts               # getBranchCached
 │   │   ├── changes.ts              # getGitChangesCached
-│   │   └── pr.ts                   # getPrUrlCached
+│   │   ├── pr.ts                   # getPrUrlCached
+│   │   └── worktree.ts             # getMainProjectNameCached
 │   ├── usage/
 │   │   ├── index.ts                # barrel re-export
 │   │   ├── token.ts                # getAccessToken, getAccessTokenCached
@@ -56,6 +57,7 @@ cc-statusline/
 | Git 브랜치 | `git branch --show-current` |
 | Git diff | `git diff --shortstat` |
 | PR URL | `gh pr view` |
+| 메인 프로젝트명 | `git rev-parse --git-common-dir` (워크트리) |
 | 블록 사용량 | Anthropic Usage API (`/api/oauth/usage`, OAuth 토큰) |
 | 리셋 타이머 | Anthropic Usage API `five_hour.resets_at` |
 | 주간 리셋 시간 | Anthropic Usage API `seven_day.resets_at` |

README.md

@@ -48,6 +48,7 @@ Add the following to `~/.claude/settings.json`:
 - **Context**: Token usage with percentage (color-coded)
 - **Git Diff**: File count, insertions, deletions
 - **PR URL**: Clickable OSC 8 hyperlink
+- **Worktree Support**: Shows real project name when running in a `cc --worktree` session
 - **TrueColor**: Dynamic colors based on thresholds
 - **Limit Reset Time**: Reset time display (HH:MM)
 - **Block Usage**: 5-hour utilization percentage (from server API)
@@ -59,6 +60,7 @@ Add the following to `~/.claude/settings.json`:
 | Emoji | Description              |
 | ----- | ------------------------ |
 | 📁    | Project folder name      |
+| 🌲    | Worktree name (shown in worktree sessions) |
 | 🌿    | Current Git branch       |
 | ⏱️    | Session elapsed time     |
 | 💰    | Session cost in USD      |