[omartelo]

Summary

opencode 2 loads plugins through a new door and renamed every event the card reads, so under it an opencode card had no spinner, ring, bell or title. opencode/lich.js now serves both generations from one file:

• opencode 1 keeps running the named LichPlugin, now also reached through the default export's server(). 1.18.23 and 1.19.4 initialize it once per run with both exports present.
• opencode 2 reads the default export's id and setup(ctx). The reports ride session.execution.started (session start, then busy), session.execution.succeeded, failed and interrupted (done), session.renamed (title), permission.asked (waiting, reason = action), ctx.tool.hook("execute.before") (tool line) and write, edit and patch finishing (touched).
• No opencode 2 event carries a parent, so a sub-session is looked up once with ctx.session.get and dropped when it has a parentID.
• opencode 1 also calls setup(), with a context that has neither event nor session; the 2.x half stands down there, and outside lich.

opencode 2 reads global plugins from ~/.config/opencode/plugins/ only. The companion lich change installs the module there and removes the copy an older lich left in plugin/ (lichdotdev/lich, feat/opencode-2).

No endpoint, field or accepted value changes: this is a patch release (0.20.9), inside the range every current lich installs.

Test plan

• node --test tests/*.test.mjs: 481 pass, including the new tests/opencode2.test.mjs driven by event payloads taken off a probe plugin under opencode run --standalone 2.2.5.
• Real opencode 1.18.23 and 1.19.4, module in plugins/ and in plugin/: LichPlugin initializes once per run, setup() returns without subscribing.
• Real opencode 2.2.5: a default-exported plain object (no @opencode/plugin import) loads, sees the spawn's environment, and ctx.session.get returns parentID for a subagent child.