Add hybrid research copilot workspace

lib/server/task-notifications.ts

@@ -117,6 +117,13 @@ function buildStats(task: TaskCore): TaskNotificationStat[] {
       );
       break;
     }
+    case 'research_brief':
+      stats.push(
+        makeStat('Ticker', asString(result?.ticker) ?? task.stage_context?.subject?.ticker ?? null),
+        makeStat('Artifact', asNumber(result?.artifactId) ?? null),
+        makeStat('Model', asString(result?.model) ?? null)
+      );
+      break;
   }
 
   if (stats.every((stat) => stat === null)) {
@@ -194,6 +201,14 @@ function buildActions(task: TaskCore): TaskNotificationAction[] {
         primary: true
       });
       break;
+    case 'research_brief':
+      actions.push({
+        id: 'open_research',
+        label: 'Open research',
+        href: ticker ? `/research?ticker=${encodeURIComponent(ticker)}` : '/research',
+        primary: true
+      });
+      break;
   }
 
   actions.push({