refactor: 清理未使用IPC命令、修正point_service注释与扣费逻辑、修复camelToSnake正则、优化vidu import

- 删除8个未使用IPC命令，保留validate_media_path
- file.rs返回类型优化为ApiResponse<()>
- point_service.consume()注释与签名一致
- VideoGeneration改为拼接成功后扣费
- 添加漏扣费风险注释
- 删除过时测试文件
- 修复camelToSnake连续大写字母问题
- vidu.py import移至模块顶层

Refs: P1-1~P1-6 技术债务清理

python-api/app/api/v1/points.py

@@ -23,8 +23,6 @@ from app.schemas.point import (
     PointBalanceResponse,
     PointTransactionItem,
     PointTransactionListResponse,
-    RechargeOrderItem,
-    RechargeOrderListResponse,
     RechargeRequest,
     RechargeResponse,
 )
@@ -134,7 +132,7 @@ async def create_recharge_order(
     request: RechargeRequest,
     db: AsyncSession = Depends(get_db),
     current_user: User = Depends(get_current_user),
-
+    http_request: Request = None,
 ):
     """
     创建积分充值订单（微信支付 Native 扫码）
@@ -175,6 +173,16 @@ async def create_recharge_order(
     beijing_tz = timezone(timedelta(hours=8))
     time_expire = expire_at.astimezone(beijing_tz).strftime("%Y%m%d%H%M%S")
 
+    # 获取客户端真实 IP（优先从 Nginx 转发头读取）
+    client_ip = None
+    if http_request:
+        xff = http_request.headers.get("x-forwarded-for")
+        if xff:
+            client_ip = xff.split(",")[0].strip()
+        else:
+            xri = http_request.headers.get("x-real-ip")
+            client_ip = xri or (http_request.client.host if http_request.client else None)
+
     # 调用微信支付统一下单
     try:
         from app.services.wxpay_service import WechatPayError, get_wxpay_service
@@ -191,6 +199,7 @@ async def create_recharge_order(
                 amount=request.amount_rmb,
                 attach=str(current_user.id),
                 time_expire=time_expire,
+                client_ip=client_ip,
             )
 
         # 记录微信返回
@@ -486,55 +495,6 @@ async def get_points_rules(
 
 # ── 积分预估查询 ──────────────────────────────────────
 
-@router.get("/cost")
-async def get_cost(
-    source_type: str,
-    seconds: int = 0,
-    char_count: int = 0,
-    total_seconds: int = 0,
-    input_seconds: int = 0,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    """
-    查询某操作所需积分（预估上限和实际计费规则），并附带余额检查。
-
-    用于前端在执行业务前预估所需积分，做余额检查。
-    """
-    try:
-        # 构建预估参数
-        estimate_param = {}
-        if source_type == "tts":
-            estimate_param["char_count"] = char_count
-        elif source_type in ("video", "caption"):
-            estimate_param["input_seconds"] = input_seconds
-        elif source_type == "compose":
-            estimate_param["total_seconds"] = total_seconds
-
-        estimated = point_service._estimate_max_cost(source_type, estimate_param)
-
-        # 实际计费（按传入秒数计算）
-        actual_param = {"seconds": seconds}
-        actual = point_service._calculate_cost(source_type, actual_param)
-
-        # 余额检查
-        balance_info = await point_service.check_balance(
-            db, current_user.id, required_points=estimated
-        )
-
-        return success_response(
-            data={
-                "source_type": source_type,
-                "estimated_points": estimated,
-                "actual_points": actual,
-                "sufficient": balance_info["sufficient"],
-                "balance": balance_info["balance"],
-                "required": balance_info["required"],
-            },
-            message="积分预估查询成功",
-        )
-    except ValueError as e:
-        raise HTTPException(status_code=400, detail=str(e))
 
 
 # ── 直接消费扣费（前端/Rust 层调用）───────────────────
@@ -563,7 +523,7 @@ async def consume_points(
             source_type=request.source_type,
             source_id=request.source_id,
             description=f"【{request.description or request.source_type}】",
-            allow_negative=False,
+            allow_negative=request.allow_negative,
         )
     except ValueError as e:
         # 余额不足（在同一事务内判断，避免竞态）
@@ -583,31 +543,3 @@ async def consume_points(
     )
 
 
-# ── 充值订单查询 ──────────────────────────────────────
-
-@router.get("/orders", response_model=ApiResponse[RechargeOrderListResponse])
-async def list_recharge_orders(
-    pagination: PaginationParams = Depends(),
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    """获取当前用户充值订单列表"""
-    items = await point_recharge_order.get_by_user_id(
-        db,
-        user_id=current_user.id,
-        skip=pagination.offset,
-        limit=pagination.page_size,
-    )
-
-    total = len(items)
-
-    return success_response(
-        data=RechargeOrderListResponse(
-            items=[RechargeOrderItem.model_validate(o) for o in items],
-            total=total,
-            skip=pagination.offset,
-            limit=pagination.page_size,
-        )
-    )
-
-