feat(portfolio): 组合回测接入A股费用(佣金/印花税/最低佣金/滑点)对齐个股回测; BulletTrade set_order_cost/set_slippage [vps]

frontend/src/views/backtest/PortfolioBacktest.vue

@@ -57,6 +57,11 @@ const form = reactive({
   end: dr.end,
   cash: 1_000_000,
   benchmark: '000300.XSHG',
+  // A 股费用(对齐个股回测)
+  commission_rate: 0.0003,
+  stamp_duty_rate: 0.001,
+  min_commission: 5,
+  slippage: 0.001,
 })
 watch(
   () => [form.start, form.end],
@@ -199,6 +204,10 @@ async function onSubmit(): Promise<void> {
       end_date: form.end,
       initial_cash: form.cash,
       benchmark: form.benchmark,
+      commission_rate: Number(form.commission_rate),
+      stamp_duty_rate: Number(form.stamp_duty_rate),
+      min_commission: Number(form.min_commission),
+      slippage: Number(form.slippage),
     })
     try {
       localStorage.setItem('last_portfolio_task', tid)
@@ -328,6 +337,22 @@ function fmtNum(v: number | null | undefined, digits = 2): string {
             <el-option v-for="b in BENCHMARK_OPTIONS" :key="b.value" :label="b.label" :value="b.value" />
           </el-select>
         </el-form-item>
+        <el-form-item label="佣金率">
+          <el-input v-model="form.commission_rate" style="width: 160px" />
+          <span class="muted form-hint">0.0003=万3(双边,最低5元)</span>
+        </el-form-item>
+        <el-form-item label="印花税率">
+          <el-input v-model="form.stamp_duty_rate" style="width: 160px" />
+          <span class="muted form-hint">0.001=千1(仅卖出)</span>
+        </el-form-item>
+        <el-form-item label="最低佣金">
+          <el-input v-model="form.min_commission" style="width: 160px" />
+          <span class="muted form-hint">元/笔</span>
+        </el-form-item>
+        <el-form-item label="滑点(比率)">
+          <el-input v-model="form.slippage" style="width: 160px" />
+          <span class="muted form-hint">0.001=万10,0=不加</span>
+        </el-form-item>
       </el-form>
       <div class="submit-bar">
         <el-button type="primary" size="large" @click="onSubmit">开始回测</el-button>