os.homedir() returns backslashes on Windows but Claude Code outputs
paths with forward slashes. Replace both C:\Users\x and C:/Users/x
variants so home and repoRoot are always redacted.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add sanitizeForDiscord() in src/runtime/sanitize.ts.
Router applies sanitizer to all channel.send() calls.
Prevents path/token leaks into Discord channels.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>