feat(aihr): harden M0-M2 mobile training flows

mobile-uni/src/services/practice.ts

@@ -1,5 +1,6 @@
 import type {
   PracticeFinishResponse,
+  PracticeHelpEvent,
   PracticePrepCard,
   PracticeRecord,
   PracticeMistake,
@@ -42,6 +43,14 @@ export const getPracticePrepCard = (scenarioId = defaultScenarioId) =>
     timeout: 15000
   });
 
+export const recordPracticeHelp = (sessionId: string, roundIndex: number) =>
+  apiRequest<PracticeHelpEvent>({
+    url: `/api/train/practice/sessions/${encodeURIComponent(sessionId)}/help`,
+    method: 'POST',
+    data: { roundIndex },
+    timeout: 15000
+  });
+
 export const getPracticeScenarios = (position = getSelectedPosition()) =>
   apiRequest<PracticeScenarioOption[]>({
     url: `/api/train/practice/scenarios?position=${encodeURIComponent(position || '生活顾问')}`,