feat: Implement basic general folder support (#2051)

- Related: #1748

src/ha/integration/index.ts

@@ -0,0 +1,13 @@
+import { HomeAssistant } from '../types.js';
+import { homeAssistantWSRequest } from '../ws-request.js';
+import { IntegrationManifest, integrationManifestSchema } from './types.js';
+
+export const getIntegrationManifest = async (
+  hass: HomeAssistant,
+  integration: string,
+): Promise<IntegrationManifest> => {
+  return await homeAssistantWSRequest(hass, integrationManifestSchema, {
+    type: 'manifest/get',
+    integration: integration,
+  });
+};