feat: side panel shows raw + balanced averages, list drops delta

Removes the per-row '⇢ X.X' annotation from the ranking list — the
list view stays clean. The side panel's stats area gains a combined
Avg Score card that shows Raw and Balanced side-by-side, with the
active one (per the round's toggle) bolded and tagged 'used for
ranking'. Pass Rate and Evaluators move below into a 2-col grid.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/admin/round/ranking-dashboard.tsx

@@ -83,7 +83,6 @@ type SortableProjectRowProps = {
   entry: (RankedProjectEntry & { originalIndex?: number }) | undefined
   projectInfo: ProjectInfo | undefined
   jurorScores: JurorScore[] | undefined
-  balancedScore: number | null
   onSelect: () => void
   isSelected: boolean
   originalRank: number | undefined // from snapshotOrder — always in sync with localOrder
@@ -97,7 +96,6 @@ function SortableProjectRow({
   entry,
   projectInfo,
   jurorScores,
-  balancedScore,
   onSelect,
   isSelected,
   originalRank,
@@ -202,27 +200,6 @@ function SortableProjectRow({
           </span>
         ) : null}
 
-        {/* Raw + balanced averages shown side by side */}
-        {entry?.avgGlobalScore !== null && entry?.avgGlobalScore !== undefined && jurorScores && jurorScores.length > 1 && (
-          <div className="flex items-center gap-1.5 text-xs" title="Raw juror average vs. juror-balanced average (z-score normalized per juror, rescaled to 1-10)">
-            <span className="font-medium text-muted-foreground">
-              {entry.avgGlobalScore.toFixed(1)}
-            </span>
-            {balancedScore != null && Math.abs(balancedScore - entry.avgGlobalScore) >= 0.05 && (
-              <span
-                className={cn(
-                  'font-semibold tabular-nums rounded px-1.5 py-0.5 border',
-                  balancedScore > entry.avgGlobalScore
-                    ? 'bg-emerald-50 text-emerald-700 border-emerald-200'
-                    : 'bg-amber-50 text-amber-700 border-amber-200',
-                )}
-              >
-                ⇢ {balancedScore.toFixed(1)}
-              </span>
-            )}
-          </div>
-        )}
-
         {/* Advance decision indicator */}
         <div className={cn(
           'inline-flex items-center gap-1 rounded-full px-2 py-0.5 text-xs font-medium',
@@ -1000,7 +977,6 @@ export function RankingDashboard({ competitionId: _competitionId, roundId }: Ran
                                   entry={rankingMap.get(projectId)}
                                   projectInfo={projectInfoMap.get(projectId)}
                                   jurorScores={evalScores?.byProject[projectId]}
-                                  balancedScore={evalScores?.balanced[projectId]?.balancedAverage ?? null}
                                   onSelect={() => setSelectedProjectId(projectId)}
                                   isSelected={selectedProjectId === projectId}
                                   originalRank={hasReorders ? snapshotOrder[projectId] : undefined}
@@ -1075,31 +1051,50 @@ export function RankingDashboard({ competitionId: _competitionId, roundId }: Ran
                 </div>
                 <Switch checked={useBalanced} onCheckedChange={persistUseBalanced} />
               </div>
-              {/* Stats summary */}
+              {/* Stats summary: combined Avg card with Raw + Balanced side-by-side */}
-              {projectDetail.stats && (
+              {projectDetail.stats && (() => {
-                <div className="grid grid-cols-3 gap-3">
+                const raw = selectedProjectId
-                  <div className="rounded-lg border p-3 text-center">
+                  ? evalScores?.balanced[selectedProjectId]?.rawAverage ?? null
-                    <p className="text-xs text-muted-foreground">Avg Score</p>
+                  : null
-                    <p className="mt-1 text-lg font-semibold">
+                const balanced = selectedProjectId
-                      {projectDetail.stats.averageGlobalScore?.toFixed(1) ?? '—'}
+                  ? evalScores?.balanced[selectedProjectId]?.balancedAverage ?? null
-                    </p>
+                  : null
+                return (
+                  <div className="space-y-3">
+                    <div className="rounded-lg border p-3">
+                      <p className="text-xs text-muted-foreground mb-2">Avg Score</p>
+                      <div className="flex items-baseline gap-4 flex-wrap">
+                        <div className={`flex items-baseline gap-1 ${useBalanced ? 'text-muted-foreground' : 'font-semibold'}`}>
+                          <span className="text-xs">Raw</span>
+                          <span className="text-lg tabular-nums">{raw != null ? raw.toFixed(1) : '—'}</span>
+                          {!useBalanced && <span className="ml-1 text-[10px] text-muted-foreground">← used for ranking</span>}
+                        </div>
+                        <div className={`flex items-baseline gap-1 ${useBalanced ? 'font-semibold' : 'text-muted-foreground'}`}>
+                          <span className="text-xs">Balanced</span>
+                          <span className="text-lg tabular-nums">{balanced != null ? balanced.toFixed(1) : '—'}</span>
+                          {useBalanced && <span className="ml-1 text-[10px] text-muted-foreground">← used for ranking</span>}
+                        </div>
+                      </div>
+                    </div>
+                    <div className="grid grid-cols-2 gap-3">
+                      <div className="rounded-lg border p-3 text-center">
+                        <p className="text-xs text-muted-foreground">Pass Rate</p>
+                        <p className="mt-1 text-lg font-semibold">
+                          {projectDetail.stats.totalEvaluations > 0
+                            ? `${Math.round((projectDetail.stats.yesVotes / projectDetail.stats.totalEvaluations) * 100)}%`
+                            : '—'}
+                        </p>
+                      </div>
+                      <div className="rounded-lg border p-3 text-center">
+                        <p className="text-xs text-muted-foreground">Evaluators</p>
+                        <p className="mt-1 text-lg font-semibold">
+                          {projectDetail.stats.totalEvaluations}
+                        </p>
+                      </div>
+                    </div>
                   </div>
-                  <div className="rounded-lg border p-3 text-center">
+                )
-                    <p className="text-xs text-muted-foreground">Pass Rate</p>
+              })()}
-                    <p className="mt-1 text-lg font-semibold">
-                      {projectDetail.stats.totalEvaluations > 0
-                        ? `${Math.round((projectDetail.stats.yesVotes / projectDetail.stats.totalEvaluations) * 100)}%`
-                        : '—'}
-                    </p>
-                  </div>
-                  <div className="rounded-lg border p-3 text-center">
-                    <p className="text-xs text-muted-foreground">Evaluators</p>
-                    <p className="mt-1 text-lg font-semibold">
-                      {projectDetail.stats.totalEvaluations}
-                    </p>
-                  </div>
-                </div>
-              )}
 
               {/* Per-juror evaluations */}
               <div>