fix(nuxi): migrate eve client to 0.31 session api

[benjamincanac]

eve 0.31 replaced continuation-token session APIs with fixed, ID-addressed handles, so the bump and the migration have to land together. Pulling it out of #2366 leaves that PR with only the unrelated check-provenance failure. Same upgrade as HugoRCD/evlog#553.

Client — send is positional, so agent.send({ message: X }) becomes agent.send(X). initialSession now means attach to this session, so it's only set once a cursor exists; a fresh chat leaves it undefined and lets eve create the session, which createChatSyncHandler already persists. Renaming the old key to sessionId compiles but would attach every new chat to a session that doesn't exist yet (409 session_not_active). Existing chats are unaffected: syncChatToDb only ever persists a cursor when sessionId is set, and the sync route validates it, so no continuation-token-only row exists.

Agent — ScheduleHandlerArgs is { to, waitUntil, appAuth } and RouteHandlerArgs has no receive, so receive(slack, ...) became to(slack, { channelId }).send(message, { auth }) across lib/workflows.ts, both digest schedules and channels/ops.ts. receiveOnSlack is now sendToSlack, and the workflow template in layers/nuxi/README.md is updated to match. Without this the weekly digest, firehose summary and their ops triggers throw on first fire.

Also drops chatId from UseEveChatOptions, which nothing reads since initialSession stopped using it.

Worth knowing — nothing under layers/*/agent/** is in any tsconfig, and eve build bundles without typechecking (I put args.receive back and it still exited 0 and produced a deployable bundle). So the agent half of this diff has no automated verification, and the schedules only run on cron. Verified against the shipped 0.31.3 type declarations instead.

hooks/rate-limit.ts and hooks/chat-title.ts still read ctx.channel.continuationToken, which still exists in 0.31.3, so they're untouched. If that value stops matching the chat id both hooks early-return and titles quietly stop generating.

pnpm typecheck, pnpm lint, vitest 59/59 and eve build pass. Not exercised against a running eve: worth starting a fresh chat, reloading it, and firing one ops trigger before merging.

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Project	Deployment	Actions	Updated (UTC)
nuxt	Ready	Preview	Aug 10, 2026 4:43pm

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	eve@​0.31.3

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[coderabbitai]

📝 Walkthrough

Walkthrough

The Eve dependency updates from ^0.29.4 to ^0.31.3. useEveChat removes chatId, sends text and file payloads directly to agent.send, and uses the persisted session cursor for initialization. Scheduled digest and firehose workflows now send Slack messages through the schedule handler's to callback.

Area	Changes
Eve chat	Updated the public options, send payloads, and session initialization.
Scheduled Slack delivery	Replaced receive with to in workflow delivery and documentation.
Dependency	Updated the Eve version constraint.

Estimated code review effort: 3 (Moderate) | ~20 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly describes the Eve dependency upgrade and session API migration, which are the primary changes.
Description check	✅ Passed	The description explains the Eve 0.31 client and agent API migration, affected files, verification, and remaining test limitation.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/eve-0.31-session-api

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