Before, /new and /clear were identical: both just dropped the local
conversationId->sessionId mapping. The agent-side session was never
disposed (opencode sessions leaked), and the two commands had no real
difference beyond their ack text.
Align them to each channel's real capability:
- /new (resetSession): drop the local mapping only; the old agent session
is left intact and stays resumable where the agent supports it.
- /clear (new sessionClearer): actively dispose the current session via the
agent's real delete primitive. opencode implements it with
DELETE /session/:id (idempotent on 404). Channels whose agent exposes no
delete in the mode DWS drives it (Codex app-server, Qoder stream, Claude
exec) fall back to resetSession, so /clear behaves like /new there.
Tests pin both directions: /clear issues exactly one DELETE and drops the
mapping; /new (resetSession) issues zero DELETEs so the old session stays
resumable. Doc updated to describe the per-channel behavior.
go build ./... ok; go vet ok; go test ./internal/helpers ok.
修雨
fbfcd69c2b