v4.2.0: lazy in OpenCode now

Added

• OpenCode support: a plugin that injects the ponytail ruleset every turn and adds /ponytail + /ponytail-review, with README install steps. (#16)

Fixed

• Mode filter no longer strips rule bullets containing a colon. (#14)
• Hooks use CLAUDE_PLUGIN_ROOT, fixing activation that failed with Cannot find module. (#12)