feat(cc-050): AI Activity Privacy page

src/app/dashboard/privacy/ai-activity/page.tsx

@@ -0,0 +1,89 @@
+'use client';
+
+import { useQuery } from '@tanstack/react-query';
+import { apiFetch } from '../../../../lib/api';
+import type { AiRequest } from '../../../../lib/api';
+import { useSession } from '../../../../components/session-provider';
+
+export default function AiActivityPrivacyPage() {
+  const { activeTenant } = useSession();
+  const tenantId = activeTenant?.tenantId ?? '';
+
+  const { data: requests = [], isLoading } = useQuery({
+    queryKey: ['ai-activity-privacy', tenantId],
+    queryFn: () => apiFetch<AiRequest[]>('/v1/ai-requests?limit=200', { tenantId }),
+    enabled: Boolean(tenantId),
+    staleTime: 30_000,
+  });
+
+  return (
+    <div className="max-w-4xl space-y-6">
+      <div>
+        <h1 className="font-display text-2xl font-semibold text-ink">Activitate AI</h1>
+        <p className="mt-1 text-sm text-ink-faint">
+          Transparență completă asupra accesului AI la datele workspace-ului. Fiecare cerere este
+          identificată printr-un <span className="font-mono text-xs">context_manifest_hash</span>{' '}
+          unic ce atestă setul de date permis.
+        </p>
+      </div>
+
+      <div className="card p-4">
+        <p className="text-xs text-ink-faint">
+          <span className="font-semibold text-ink">Notă privind confidențialitatea:</span> Conținutul
+          contextelor AI nu este reținut de platformă. Hash-ul contextului permite auditarea tipului
+          de date accesate fără a expune datele în sine.
+        </p>
+      </div>
+
+      {isLoading ? (
+        <p className="text-sm text-ink-faint">Se încarcă…</p>
+      ) : requests.length === 0 ? (
+        <div className="card p-10 text-center">
+          <p className="text-[32px]">✓</p>
+          <p className="mt-2 text-sm font-medium text-ink">Nicio activitate AI înregistrată</p>
+          <p className="mt-1 text-xs text-ink-faint">AI-ul nu a accesat nicio dată din workspace.</p>
+        </div>
+      ) : (
+        <ul className="space-y-2">
+          {requests.map((req) => (
+            <li key={req.id} className="card px-4 py-3">
+              <div className="flex items-start justify-between gap-4">
+                <div className="min-w-0 flex-1">
+                  <p className="text-sm font-medium text-ink capitalize">
+                    {req.purpose.replace(/_/g, ' ')}
+                  </p>
+                  <div className="mt-1.5 flex flex-wrap items-center gap-2">
+                    <span className="rounded bg-paper-sunken px-1.5 py-0.5 font-mono text-[10px] text-ink-faint">
+                      {req.actionClass}
+                    </span>
+                    <span className="font-mono text-[10px] text-ink-line">·</span>
+                    <span className="font-mono text-[11px] text-ink-faint">{req.model}</span>
+                    <span className="font-mono text-[10px] text-ink-line">·</span>
+                    <span
+                      title={`Context hash: ${req.contextManifestHash}`}
+                      className="cursor-help font-mono text-[9px] text-ink-line"
+                    >
+                      #{req.contextManifestHash.slice(0, 12)}…
+                    </span>
+                  </div>
+                </div>
+                <div className="shrink-0 text-right">
+                  <p className="text-[11px] text-ink-faint whitespace-nowrap">
+                    {new Date(req.createdAt).toLocaleDateString('ro-RO', {
+                      day: 'numeric', month: 'short', year: 'numeric',
+                    })}
+                  </p>
+                  <p className="text-[11px] text-ink-line">
+                    {new Date(req.createdAt).toLocaleTimeString('ro-RO', {
+                      hour: '2-digit', minute: '2-digit',
+                    })}
+                  </p>
+                </div>
+              </div>
+            </li>
+          ))}
+        </ul>
+      )}
+    </div>
+  );
+}