[hellopablo]

Summary

• FIND_REPLACE_QUEUE chooses the queue for admin and API searches. When it is unset, searches use default.
• An unknown queue is rejected before a search is saved or a rerun clears its results.
• The Find & Replace index warns when Manager::isProcessed() reports that the queue has no live worker. That is the same check as the queue dashboard alert in Report queues that have no live worker module-queue#21.
• Search list column widths live in the module admin CSS at 250px, instead of inline 200px styles on the table headers.

Test plan

• With FIND_REPLACE_QUEUE set to priority, a new search is pushed onto priority.
• With no live worker for that queue, the index shows the warning and the search stays pending.
• With an unknown queue name, the index says the queue is not available and the search is not saved.
• ./vendor/bin/phpunit tests/Service/QueueTest.php passes once this package is installed with the module-queue release that includes isProcessed().
• On the Find & Replace index, Status, Progress, Results, Last run, and Actions are 250px, and the Term column takes the remaining width.