feat: batch update - gift card breakdown spec, backend APIs, miniprogram pages, ETL finance recharge, docs & migrations

apps/backend/app/routers/xcx_coaches.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+"""
+小程序助教路由 —— 助教详情（COACH-1）。
+
+端点清单：
+- GET  /api/xcx/coaches/{coach_id}  — 助教详情（COACH-1）
+
+所有端点均需 JWT（approved 状态）。
+"""
+
+from __future__ import annotations
+
+from fastapi import APIRouter, Depends
+
+from app.auth.dependencies import CurrentUser
+from app.middleware.permission import require_approved
+from app.schemas.xcx_coaches import CoachDetailResponse
+from app.services import coach_service
+
+router = APIRouter(prefix="/api/xcx/coaches", tags=["小程序助教"])
+
+
+@router.get("/{coach_id}", response_model=CoachDetailResponse)
+async def get_coach_detail(
+    coach_id: int,
+    user: CurrentUser = Depends(require_approved()),
+):
+    """助教详情（COACH-1）。"""
+    return await coach_service.get_coach_detail(
+        coach_id, user.site_id
+    )