修复发布页移动端小数输入与押金下限校验

- 哈夫币/M：移动端输入框由 type="digit" 改为 type="number"，
  与绝密KD 一致，iOS 可输入小数点（烽火等级保持取整不变）
- 押金：新增 handleDepositBlur，输入框失焦时若低于智能推荐额度
  （或为空/非法）自动补足到推荐值并提示，桌面与移动端均生效；
  提交时校验保留作兜底

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/src/features/seller/composables/usePublishForm.ts

@@ -612,6 +612,17 @@ export function usePublishForm(options: UsePublishFormOptions) {
     }
   }
 
+  // 失焦时实时校正：押金低于（或低于等于无效/为空）智能推荐时自动补到推荐值并提示。
+  function handleDepositBlur() {
+    const recommended = pricing.recommendedDepositAmount.value
+    if (recommended <= 0) return
+    const current = Number(form.depositAmountYuan)
+    if (form.depositAmountYuan === '' || !Number.isFinite(current) || current < recommended) {
+      form.depositAmountYuan = recommended
+      options.notifyWarning(`押金不能低于智能推荐 ¥${recommended}，已自动调整`)
+    }
+  }
+
   function clearForbiddenQuantityItems() {
     for (const item of pricing.quantityItems.value) {
       if (!pricing.isQuantityItemDisabled(item)) continue
@@ -959,6 +970,7 @@ export function usePublishForm(options: UsePublishFormOptions) {
     handleAcceleratedSaleRatioInput,
     syncRecommendedDeposit,
     useRecommendedDeposit,
+    handleDepositBlur,
     clearForbiddenQuantityItems,
     setQuantityMode,
     clampAcceleratedSaleRatioInput,

frontend/src/features/seller/views/MobileSellerListingCreateView.vue

@@ -81,6 +81,7 @@ const {
   handleFireLevelInput,
   handleAcceleratedSaleRatioInput,
   useRecommendedDeposit,
+  handleDepositBlur,
   setQuantityMode,
   clampAcceleratedSaleRatioInput,
   useReferenceSaleRatio,
@@ -177,7 +178,7 @@ const screenshotGuides: Record<string, string> = {
         <van-field
           v-model="form.haf_coin_amount"
           label="哈夫币/M"
-          type="digit"
+          type="number"
           required
           placeholder="只填写仓库右上角纯币数额，总资产不计算在内；100M 写 100"
           class="publish-field"
@@ -578,6 +579,7 @@ const screenshotGuides: Record<string, string> = {
               type="number"
               inputmode="decimal"
               :placeholder="priceConfig.deposit_placeholder"
+              @blur="handleDepositBlur"
             />
             <span>元</span>
           </div>

frontend/src/features/seller/views/SellerListingCreateView.vue

@@ -90,6 +90,7 @@ const {
   handleFireLevelInput,
   handleAcceleratedSaleRatioInput,
   useRecommendedDeposit,
+  handleDepositBlur,
   setQuantityMode,
   clampAcceleratedSaleRatioInput,
   useReferenceSaleRatio,
@@ -513,6 +514,7 @@ function selectDailyLoss(value: string | number) {
                   :min="0"
                   :controls="false"
                   :placeholder="priceConfig.deposit_placeholder"
+                  @blur="handleDepositBlur"
                 />
                 <button class="recommend-button" type="button" @click="useRecommendedDeposit">
                   使用推荐 ¥{{ formatMoney(recommendedDepositAmount) }}