优化烽火地带最小等级

frontend/src/views/admin/AdminSystemConfigsView.vue

@@ -543,6 +543,15 @@ function readError(error: unknown, fallback: string) {
             </el-form-item>
           </div>
 
+          <div class="editor-block">
+            <div class="editor-block-title">
+              <strong>发布规则</strong>
+            </div>
+            <el-form-item label="最低烽火等级">
+              <el-input-number v-model="publishOptionsDraft.fire_level_min" :min="1" :step="1" class="full-control" />
+            </el-form-item>
+          </div>
+
           <div class="editor-block">
             <div class="editor-block-title">
               <strong>押金与价格提示</strong>

frontend/src/views/mobile/MobileSellerListingCreateView.vue

@@ -112,6 +112,10 @@ const regionOptions = computed(() => publishOptions.value.region_options);
 const banRecordOptions = computed(() => publishOptions.value.ban_record_options);
 const banEvidenceOptions = computed(() => publishOptions.value.ban_evidence_options);
 const priceConfig = computed(() => publishOptions.value.price_config);
+const fireLevelMin = computed(() => publishOptions.value.fire_level_min || 38);
+const fireLevelPlaceholder = computed(
+  () => `等级低于${fireLevelMin.value}级的号无法发布`
+);
 const ratioConfig = computed(() => publishOptions.value.ratio_config);
 const skinGroups = computed(() => publishOptions.value.skin_groups);
 const quantityItems = computed(() => publishOptions.value.quantity_items);
@@ -394,7 +398,9 @@ function validateForm() {
   if (coinMAmount.value <= 0) return "请填写哈夫币/M";
   if (!form.rank_level) return "请选择段位";
   if (!form.fire_level) return "请填写烽火等级";
-  if (Number(form.fire_level) < 38) return "烽火等级低于38级的号无法发布";
+  if (Number(form.fire_level) < fireLevelMin.value) {
+    return `烽火等级低于${fireLevelMin.value}级的号无法发布`;
+  }
   if (!form.season_insurance) return "请选择赛季保险";
   if (!form.stamina_level) return "请选择体力等级";
   if (!form.load_level) return "请选择负重等级";
@@ -642,7 +648,7 @@ function readError(error: unknown, fallback: string) {
           label="烽火等级"
           type="digit"
           required
-          placeholder="等级低于38级的号无法发布"
+          :placeholder="fireLevelPlaceholder"
           class="publish-field"
           @update:model-value="handleFireLevelInput"
         />