feat(ui): two-column settings/details, compact job list, manual run while paused

- Allow manual "Run now" while the scheduler is paused: pause now stops only
  automatic scheduled runs (RunDue), not the user's explicit action. Drop the
  paused guard in Service.RunNow and the UI pause dialog; update tests.
- Cap the details metadata caption width via a new captionValueLayout so a wider
  window feeds extra space to the value column instead of the short caption.
- Reorganize the Settings tab into two columns (Application+Queue / Storage+About)
  with Save spanning the full width; move the Autostart status onto its own line.
- Condense the Jobs list rows with compactVBoxLayout to fit more jobs.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/run.go

@@ -11,8 +11,9 @@ import (
 	"gitea.mixdep.ru/mix/gosentry/src/runner"
 )
 
-// RunNow starts a manual run of a job. It refuses to run while globally paused —
-// the pause is an emergency stop for all execution — and will not start a job
+// RunNow starts a manual run of a job. Global pause stops only the scheduler's
+// automatic runs (see RunDue), so a manual "Run now" is allowed even while
+// paused — it is the user's explicit, one-off action. It will not start a job
 // that is already running. In sequential execution mode it also refuses while
 // any other job is running, so a manual run never breaks the one-at-a-time
 // guarantee. The run itself happens on a background goroutine that records the
@@ -21,10 +22,6 @@ import (
 // "Running" status), not the run's own outcome.
 func (s *Service) RunNow(id int) error {
 	s.mu.Lock()
-	if s.paused {
-		s.mu.Unlock()
-		return errors.New("scheduler is paused")
-	}
 	job := s.findByIDLocked(id)
 	if job == nil {
 		s.mu.Unlock()