fix(world): namespace startup re-enqueue queue names

[asdiamond]

Problem

reenqueueActiveRuns (startup recovery in @workflow/world, used by world-local and world-postgres) hardcodes the un-namespaced queue prefix:

const queueName: ValidQueueName = `__wkf_workflow_${run.workflowName}`;

When the runtime operates under a queue namespace (WORKFLOW_QUEUE_NAMESPACE), the workflow handler is registered with the namespaced prefix __{namespace}_wkf_workflow_ and rejects anything else with HTTP 400 Unhandled queue. Live enqueues honor the namespace, so normal operation works — but every run recovered at startup is enqueued onto a name that can never match, and since rejected deliveries are retried without a cap, each recovered run becomes a permanent ~5s retry loop after every restart.

This is very visible downstream in eve, which installs an agent-scoped namespace on boot: any parked session produces endless log spam on every dev-server restart. Reported there as vercel/eve#715 (root-cause analysis in this comment):

[world-local] Re-enqueued 1 active run(s) on startup
[world-local] Queue message failed (attempt 1, HTTP 400) {
  queueName: '__wkf_workflow_workflow//eve//workflowEntry',
  handlerError: '{"error":"Unhandled queue"}'
}

Fix

Build the recovery queue name with the same namespace-aware helpers live enqueues use (getQueueTopicPrefix + resolveQueueNamespace), and accept an optional explicit namespace argument for worlds configured without the env var. Behavior without a namespace is unchanged (__wkf_workflow_…).

Testing

• New recovery.test.ts covers the default (un-namespaced), env-var, and explicit-argument cases.
• Full @workflow/world suite passes (74 tests) and tsc builds clean.
• Verified end-to-end against the eve reproduction: with a namespaced handler, a parked run recovered on restart previously spammed Unhandled queue indefinitely; session continuation itself was unaffected (it goes through the namespaced live path), confirming the mismatch is isolated to recovery.

[changeset-bot]

🦋 Changeset detected

Latest commit: 42745f3

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 20 packages

Name	Type
@workflow/world	Patch
@workflow/cli	Patch
@workflow/core	Patch
@workflow/vitest	Patch
@workflow/web-shared	Patch
@workflow/web	Patch
@workflow/world-local	Patch
@workflow/world-postgres	Patch
@workflow/world-testing	Patch
@workflow/world-vercel	Patch
workflow	Patch
@workflow/builders	Patch
@workflow/next	Patch
@workflow/nitro	Patch
@workflow/astro	Patch
@workflow/nest	Patch
@workflow/nuxt	Patch
@workflow/rollup	Patch
@workflow/sveltekit	Patch
@workflow/vite	Patch

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[vercel]

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[VaguelySerious]

Thanks for making the PR! We separately found and addressed this in #2888. A release with the fix will go out soon