Fix % recommended: derive from boolean criteria when binaryDecision is null

When scoringMode is not 'binary', binaryDecision is null even though
jurors answer boolean criteria (e.g. "Do you recommend?"). Now falls
back to checking boolean values in criterionScoresJson. Hides the
recommendation line entirely when no boolean data exists.

Fixed in both analytics.ts (observer) and project.ts (admin).

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

src/server/routers/project.ts

@@ -1190,7 +1190,23 @@ export const projectRouter = router({
         const globalScores = submittedEvaluations
           .map((e) => e.globalScore)
           .filter((s): s is number => s !== null)
-        const yesVotes = submittedEvaluations.filter((e) => e.binaryDecision === true).length
+
+        // Count recommendations: check binaryDecision first, fall back to boolean criteria
+        const yesVotes = submittedEvaluations.filter((e) => {
+          if (e.binaryDecision != null) return e.binaryDecision === true
+          const scores = e.criterionScoresJson as Record<string, unknown> | null
+          if (!scores) return false
+          const boolValues = Object.values(scores).filter((v) => typeof v === 'boolean')
+          return boolValues.length > 0 && boolValues.every((v) => v === true)
+        }).length
+
+        const hasRecommendationData = submittedEvaluations.some((e) => {
+          if (e.binaryDecision != null) return true
+          const scores = e.criterionScoresJson as Record<string, unknown> | null
+          if (!scores) return false
+          return Object.values(scores).some((v) => typeof v === 'boolean')
+        })
+
         stats = {
           totalEvaluations: submittedEvaluations.length,
           averageGlobalScore: globalScores.length > 0
@@ -1200,7 +1216,9 @@ export const projectRouter = router({
           maxScore: globalScores.length > 0 ? Math.max(...globalScores) : null,
           yesVotes,
           noVotes: submittedEvaluations.length - yesVotes,
-          yesPercentage: (yesVotes / submittedEvaluations.length) * 100,
+          yesPercentage: hasRecommendationData
+            ? (yesVotes / submittedEvaluations.length) * 100
+            : null,
         }
       }