feat: migrate clients module to patients + add docs

app/epd/patients/[id]/intakes/[intakeId]/diagnosis/page.tsx

@@ -0,0 +1,23 @@
+import { getDiagnoses } from '../actions';
+import { DiagnosisManager } from './components/diagnosis-manager';
+
+export default async function IntakeDiagnosisPage({
+  params,
+}: {
+  params: Promise<{ id: string; intakeId: string }>;
+}) {
+  const { id, intakeId } = await params;
+  const diagnoses = await getDiagnoses(intakeId);
+
+  return (
+    <div className="space-y-4">
+      <div>
+        <h2 className="text-lg font-semibold text-slate-900">Diagnoses</h2>
+        <p className="text-sm text-slate-600">
+          Registreer DSM-5 diagnoses gekoppeld aan deze intake.
+        </p>
+      </div>
+      <DiagnosisManager patientId={id} intakeId={intakeId} diagnoses={diagnoses} />
+    </div>
+  );
+}