Change list_alerts (MCP tool) and alerts (CLI command) to show only active (non-silenced, non-inhibited) alerts by default. Add state=all option and --all CLI flag to show all alerts when needed. - MCP: list_alerts with no state param now returns active alerts only - MCP: list_alerts with state=all returns all alerts (previous default) - CLI: alerts command defaults to active, --all shows everything - Add tests for new default behavior and state=all option - Update README with new CLI examples - Bump version to 0.3.0 - Clarify version bumping rules in CLAUDE.md Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>