feat: display prompt names as badges in report list view

Add promptNames field to RunGroup interface and collect prompt names
during report grouping. Display them as neutral status badges in the
report list UI with backward compatibility for older groups.json files.

Author: danymarques

report-app/src/app/pages/report-list/report-list.html

@@ -37,6 +37,13 @@
                   </ul>
                 }
               </div>
+              @if (group.promptNames.length) {
+                <ul class="status-badge-group prompt-names">
+                  @for (name of group.promptNames; track name) {
+                    <li class="status-badge neutral">{{ name }}</li>
+                  }
+                </ul>
+              }
             </div>
             <div class="run-meta-container">
               <div class="run-meta">

report-app/src/app/pages/report-list/report-list.scss

@@ -106,6 +106,15 @@ h1, h2 {
   padding: 0 20px;
 }
 
+.prompt-names {
+  margin-top: 0.4rem;
+
+  .status-badge {
+    font-size: 0.75rem;
+    font-weight: 400;
+  }
+}
+
 .select-for-comparison input[type='checkbox'] {
   width: 20px;
   height: 20px;

runner/orchestration/grouping.ts

@@ -55,6 +55,7 @@ export function groupSimilarReports(inputRuns: RunInfo[]): RunGroup[] {
     const groupResults: AssessmentResult[] = [];
     const firstRun = groupRuns[0];
     const labels = new Set<string>();
+    const promptNames = new Set<string>();
     let totalForGroup = 0;
     let maxForGroup = 0;
     let appsCount = 0;
@@ -70,6 +71,7 @@ export function groupSimilarReports(inputRuns: RunInfo[]): RunGroup[] {
         totalForRun += result.score.totalPoints;
         maxForRun += result.score.maxOverallPoints;
         groupResults.push(result);
+        promptNames.add(result.promptDef.name);
       }
 
       // `|| 0` in case there are no results, otherwise we'll get NaN.
@@ -90,6 +92,7 @@ export function groupSimilarReports(inputRuns: RunInfo[]): RunGroup[] {
       maxOverallPoints: maxForGroup / groupRuns.length || 0,
       appsCount,
       labels: Array.from(labels),
+      promptNames: Array.from(promptNames),
       environmentId: firstRun.details.summary.environmentId,
       framework: firstRun.details.summary.framework,
       model: firstRun.details.summary.model,

runner/reporting/report-local-disk.ts

@@ -37,6 +37,11 @@ export async function fetchReportsFromDisk(directory: string): Promise<FetchedLo
       // were part of the same invocation. Add a unique suffix to the ID to
       // prevent further grouping.
       run.group = group.id = `${group.id}-l${index}`;
+
+      // Derive prompt names from the run data for backward compatibility
+      // with older groups.json files that don't have the field.
+      group.promptNames ??= run.results.map(r => r.promptDef.name);
+
       data.set(group.id, {group, run});
     }),
   );

runner/shared-interfaces.ts

@@ -637,6 +637,8 @@ export interface RunGroup {
   };
   /** Runner used to generate code for the runs in the group. */
   runner?: CodegenRunnerInfo;
+  /** Names of prompts that were evaluated in this group. */
+  promptNames: string[];
 }
 
 /** Request information for a file generation. */