docs: purge chain-of-thought leakage from prose

Delete design-session citations (decision/audit/plan ordinals, stack
positions), change narration, review choreography, and reviewer-addressed
justification from comments, JSDoc, docs, READMEs, Agent Notes, tests, and
generator templates; restate every affected fact as current-state contract
prose. Fix generated docs at their sources and regenerate the catalogs and
cordis-surface regions; re-paste type-equiv blocks; update every bilingual
counterpart and re-record the pairs. Record the citation rule in the
committed-artifact-citations Agent Note.

packages/subagent/subagent-acp/README.md

@@ -97,4 +97,4 @@ Append-only; newly visible content follows the reusable request prefix and does
 - **Local workspaces only** — the resolved cwd is a local path handed to a child on the same machine; workspace mapping for a remote ACP agent would need its own backend capability and is not designed here.
 - **No optional start-time capabilities** — this provider cannot apply the local harness's `outputSchema`, depth cap, tool filter, or persona inside the remote process, so it advertises none and the service rejects requests that require them.
 - **Only committed `agent_message_chunk` text is collected** — the automation server keeps reasoning, tool activity, plans, and other trace data in the child session log rather than emitting them on ACP.
-- **Permission prompts are auto-answered** (`permission: allow | reject`) — no human is surfaced a child's `session/request_permission` in this cut.
+- **Permission prompts are auto-answered** (`permission: allow | reject`) — no human is surfaced a child's `session/request_permission`.