feat(core): page between jobs from the detail view

[omar-zeineddine]

Problem

The job detail page had no way to move to an adjacent job — to see the next one you had to go back to the queue list and click into it. Stepping through a run of jobs (e.g. reviewing a batch of failures) meant a lot of back-and-forth.

Fix

Add prev/next navigation to the job detail view:

• Chevron buttons to the left of the job title, plus ← / → arrow-key shortcuts (ignored while typing in an input/textarea/contenteditable).
• Paging follows the same list, status filter, and sort the queue page was showing. The queue's status/sort now ride along in the URL (added to jobSearchSchema) and are passed when opening a job, so prev/next on a Failed-filtered, custom-sorted view stays within that view. Deep links, the command palette, and the Runs page (which carry no list context) fall back to the full job list for that queue.
• Reuses the shared useJobs query — same cache key as the queue list — so navigation is instant when coming from the list, and it auto-fetches the next page when you reach the last loaded job so "next" doesn't dead-end mid-queue.
• Buttons disable at the ends of the list (and when the current job isn't in the loaded set, e.g. a deep link far down the queue), so there's no runaway pagination.

Testing

• tsc --noEmit ✅
• biome check ✅
• vite build (UI bundle) ✅

[vercel]

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