Update to v1.2.0 with WebSocket listener improvements

- Upgrade @posthook/node to ^1.2.0
- Fix forward mode: --forward takes base URL, hook path appended automatically
- Update README with correct forward mode usage and current header names
- Regenerate package-lock.json (remove stale local path reference)
- Bump CLI version to 1.2.0

Release v1.1.0 — async hooks in forward mode

Release v1.0.2 — per-step retry override support

Add retryOverride to sequence steps: TOML parsing, validation,
rendering, diff display with all retry fields, and normalization
to prevent phantom diffs.

Release v1.0.1 — fix next run times in diff/apply output

Wire up sequence next run preview for modified sequences using nextRuns data already returned by the API.

Release v1.0.0

- Add project config management: init, apply, diff, pull, status, validate
- Add TOML config file support (posthook.toml, multi-environment)
- Extend API client for config endpoints
- Improve forward mode with abort handling
- Remove beta label

Initial commit - Posthook CLI v0.1.0