Fix Codex sessions hanging after task completion

[luxiaolei]

Summary

• emit a ready event once the Codex queue drains so clients leave the busy state
• mirror the Claude push notification to keep mobile/web in sync
• factor the ready emitter into a helper with unit coverage

Fixes slopus/happy#140

Testing

• corepack yarn test

[luxiaolei]

Update: addressed Codex MCP conversation ID handling so codex-reply no longer errors when conversation_id is omitted. Retested end-to-end via DEBUG=1 happy codex (mobile + CLI) including multiple prompts and tool executions; sessions now stay responsive after repeated tasks.

[zhhugh]

hi, the bug of "task finished after the first requeset in codex" is fixed by these new changes, isn't it ?

[xiang-lee]

Any updates for this PR to be merged?

[jcr7467]

@bra1nDump , any chance we could get this merged? Can't use codex on the Happy app, can only send 1 message per session before it hangs and have to make a new one

[bra1nDump]

Slipped my radar, thanks for the ping!

Merged and will release the new beta cli version shortly to test

[bra1nDump]

Thank you
@luxiaolei for the fix!
@zhhugh @xiang-lee @jcr7467 for pings

Published to npm version 0.11.1