Built-in /bug command not available + Slash command fuzzy matching issue

Environment

• Version: 1.0.86 (npm-global)
• Platform: macOS
• Installation: Homebrew/npm

Issue 1: /bug command not available

Expected: Built-in /bug command should be available per troubleshooting documentation

Actual: /bug command does not exist/respond

Notes:

• /doctor works fine and shows healthy installation
• Other custom commands work normally

Issue 2: Slash command resolution uses fuzzy matching instead of exact matching

Steps to reproduce:

1. Create ~/.claude/commands/timelog.md
2. Create ~/.claude/commands/timelog-jira.md
3. Type /timelog

Expected: Should execute timelog.md (exact match)
Actual: Executes timelog-jira.md (fuzzy match)

Workaround: Renamed commands to avoid conflict

Both issues impact user experience and command reliability.