feat(frontend): show inactive tasks on entity page

Return all tasks for an entity so inactive items remain visible in the entity detail view while global task listings stay active-only.

Add inactive task styling and coverage for the entity page state.

frontend/src/pages/EntityDetailPage.tsx

@@ -61,16 +61,34 @@ export default function EntityDetailPage() {
         <h2 className="text-lg font-semibold text-slate-100">Scheduled Tasks</h2>
         <ul className="mt-3 divide-y divide-slate-800 overflow-hidden rounded-xl border border-slate-800 bg-slate-900/70">
           {tasks.map((task) => (
-            <li key={task.id} className="space-y-1 px-4 py-3">
-              <p className="font-medium text-slate-100">{task.name}</p>
-              <p className="text-sm text-slate-300">Schedule: {task.scheduleCron}</p>
-              <p className="text-sm text-slate-400">
+            <li
+              key={task.id}
+              className={`space-y-1 px-4 py-3 ${task.active ? '' : 'bg-slate-950/30 text-slate-500'}`}
+            >
+              <div className="flex items-center gap-2">
+                <p className={`font-medium ${task.active ? 'text-slate-100' : 'text-slate-400'}`}>
+                  {task.name}
+                </p>
+                {!task.active && (
+                  <span className="inline-flex rounded-full border border-amber-500/30 bg-amber-500/10 px-2 py-0.5 text-xs font-medium uppercase tracking-wide text-amber-200">
+                    Inactive
+                  </span>
+                )}
+              </div>
+              <p className={`text-sm ${task.active ? 'text-slate-300' : 'text-slate-500'}`}>
+                Schedule: {task.scheduleCron}
+              </p>
+              <p className={`text-sm ${task.active ? 'text-slate-400' : 'text-slate-500'}`}>
                 Email context: {getEmailLookbackLabel(task.emailLookback)}
               </p>
               <div className="pt-2">
                 <Link
                   to={`/entities/${entityId}/tasks/${task.id}`}
-                  className="inline-flex rounded-md border border-slate-700 px-3 py-1.5 text-sm text-slate-200 hover:border-cyan-500 hover:text-cyan-300"
+                  className={`inline-flex rounded-md border px-3 py-1.5 text-sm ${
+                    task.active
+                      ? 'border-slate-700 text-slate-200 hover:border-cyan-500 hover:text-cyan-300'
+                      : 'border-slate-800 text-slate-400 hover:border-amber-500/60 hover:text-amber-200'
+                  }`}
                 >
                   Details
                 </Link>