feat(collections): show unique genes/peptides on collection tiles (fallback to sums)

Author: ypriverol

frontend/src/components/CollectionCard.vue

@@ -27,8 +27,8 @@
         <div class="collection-stat-val">{{ formatNumber(collection.stats.total_psms) }}</div>
         <div class="collection-stat-label">PSMs</div>
       </div>
-      <div v-if="collection.stats?.total_proteins" class="collection-stat">
-        <div class="collection-stat-val">{{ formatNumber(collection.stats.total_proteins) }}</div>
+      <div v-if="collection.stats?.total_genes || collection.stats?.total_proteins" class="collection-stat">
+        <div class="collection-stat-val">{{ formatNumber(collection.stats.total_genes || collection.stats.total_proteins) }}</div>
         <div class="collection-stat-label">Proteins</div>
       </div>
       <div v-if="collection.stats?.total_species" class="collection-stat">

frontend/src/views/CollectionDetail.vue

@@ -15,12 +15,15 @@
               <div class="stat-value" style="font-size: 24px">{{ formatBig(datasetCount) }}</div>
               <div class="stat-label">Datasets</div>
             </div>
-            <div v-if="summary.stats && summary.stats.total_peptides" class="col-stat">
-              <div class="stat-value" style="font-size: 24px">{{ formatBig(summary.stats.total_peptides) }}</div>
+            <!-- Peptides/Proteins are collection-wide UNIQUE (deduped genes + peptide
+                 sequences across members); fall back to the summed totals for collections
+                 not yet restatted. Features/PSMs/Samples remain sums (data volume). -->
+            <div v-if="summary.stats && (summary.stats.total_unique_peptides || summary.stats.total_peptides)" class="col-stat">
+              <div class="stat-value" style="font-size: 24px">{{ formatBig(summary.stats.total_unique_peptides || summary.stats.total_peptides) }}</div>
               <div class="stat-label">Peptides</div>
             </div>
-            <div v-if="summary.stats && summary.stats.total_proteins" class="col-stat">
-              <div class="stat-value" style="font-size: 24px">{{ formatBig(summary.stats.total_proteins) }}</div>
+            <div v-if="summary.stats && (summary.stats.total_genes || summary.stats.total_proteins)" class="col-stat">
+              <div class="stat-value" style="font-size: 24px">{{ formatBig(summary.stats.total_genes || summary.stats.total_proteins) }}</div>
               <div class="stat-label">Proteins</div>
             </div>
             <!-- Quantification collections report Features (quantified precursors);