v1.8.0-beta.3

Features

• Add hookdeck gateway command group with full resource management
  • gateway connection — create, list, get, upsert, update, delete, enable, disable, pause, unpause
  • gateway source / gateway sources — list, get, create, upsert, update, delete, enable, disable, count
  • gateway destination / gateway destinations — same CRUD + lifecycle
  • gateway transformation / gateway transformations — list, get, create, upsert, update, delete, count, run, executions
  • gateway event / gateway request / gateway attempt — list, get, retry, and related subcommands
• User-facing docs and flags use "connection ID" and --connection-id instead of webhook ID
• Root-level hookdeck connection / connections show deprecation notice (use gateway connection instead)
• REFERENCE.md generated from CLI help; README updated with gateway resource sections

Full Changelog: v1.7.1...v1.8.0-beta.3