Support OpenCode 2.0 (opencode2) — V2 plugin API port

[Jaleel-VS]

Summary

OpenCode 2.0 (the beta installed as opencode2) uses a new plugin API, and this plugin is currently V1-only. It fails to load on V2.

Symptom (V2 server log)

failed to load plugin target=@sunerpy/opencode-kiro-auth
cause=SchemaError(Missing key at ["default"]["effect"] / ["default"]["setup"])

The package (latest v0.20.6) depends on @opencode-ai/plugin@^1.15.11 (V1 API). Per the V2 migration guide: "V1 plugins will not work in V2."

What changed in V2

• Config field plugin → plugins (the V1 entry is auto-translated, so no config change needed).
• Plugins must export a default object from Plugin.define({ id, setup }) using @opencode-ai/plugin (beta / /v2 entrypoints).
• The plugin context is now an OpenCode server client; transforms live on ctx.agent, ctx.catalog.provider, ctx.catalog.model, ctx.integration, ctx.session, etc. Full reference: https://opencode.ai/v2/docs/build/plugins

Request

Port the plugin to the V2 plugin API and publish a V2-compatible release, or at least add a V2 entrypoint/branch. I'm happy to test against opencode2 (currently 0.0.0-next-17444) once a build is available.

Environment: macOS arm64, opencode v1.18.18 (works) + opencode2 V2 beta (broken).