feat(pi): first-class support via pi-subagents + pi-ask-user (#651)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

plugins/compound-engineering/skills/ce-work-beta/references/codex-delegation-workflow.md

@@ -66,7 +66,7 @@ If it shows an unresolved command string, run `command -v codex` using a shell t
 
 If `consent_granted` is not true (from config `work_delegate_consent`):
 
-Present a one-time consent warning using the platform's blocking question tool (AskUserQuestion in Claude Code). The consent warning explains:
+Present a one-time consent warning using the platform's blocking question tool (`AskUserQuestion` in Claude Code, `request_user_input` in Codex, `ask_user` in Gemini, `ask_user` in Pi (requires the `pi-ask-user` extension)). The consent warning explains:
 - Delegation sends implementation units to `codex exec` as a structured prompt
 - **yolo mode** (`--yolo`): Full system access including network. Required for verification steps that run tests or install dependencies. **Recommended.**
 - **full-auto mode** (`--full-auto`): Workspace-write sandbox, no network access.