Use NoOptDefVal so --notify defaults to "mayor/" when specified without
a value:
- `--notify` (no arg) -> defaults to "mayor/"
- `--notify ops/` -> uses "ops/"
- (no flag) -> no notification
Removed the mayor-specific auto-default since NoOptDefVal handles this
for all roles.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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