ui: Show percentage instead of batch counts in worker progress

The raw batch counts (e.g., "94/1184") were confusing since they could
be misread as unit counts. Now both the navbar popover and the analysis
page consistently show percentages, matching how import progress is
displayed.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jhf

app/src/app/import/analyse-data-for-search-and-reports/statistical-units-refresher.tsx

@@ -21,7 +21,7 @@ function PhaseProgressBar({ phase }: { phase: PhaseStatus | null }) {
           <div key={step.step}>
             <div className="flex justify-between text-xs text-gray-500 mb-0.5">
               <span>{label}</span>
-              <span>{step.completed}/{step.total} ({pct}%)</span>
+              <span>{pct}%</span>
             </div>
             <Progress value={pct} className="h-1.5" />
           </div>

app/src/components/navbar.tsx

@@ -111,7 +111,7 @@ function PhaseProgressPopover({ phase }: { phase: PhaseStatus }) {
           <div key={step.step}>
             <div className="flex justify-between text-sm mb-1">
               <span>{label}</span>
-              <span>{step.completed}/{step.total}</span>
+              <span>{pct}%</span>
             </div>
             <Progress value={pct} className="h-2" />
           </div>