3e3b8d529c
- Change nav open and open-wait to avoid activating newly created tabs unless --focus is explicitly requested. - Send background=true for default opens so older or remote extensions also avoid stealing focus even if they ignore the new focus flag. - Remove the redundant --bg flag from navigation and search CLI commands now that no-focus/background behavior is the default. - Thread focus support through the sync SDK, async SDK, tab helpers, and workflow decorators. - Update README and demo usage to document the new default and --focus opt-in. - Bump package and extension metadata to 0.12.3. - Add regression coverage for CLI help, wire payloads, and extension behavior.