fix(admin): LLM 路由标签动态化

- 默认提供商按 id 排序取第一个活跃的（nvidia step-3.7-flash）
- 合规审查取活跃且 model=deepseek-v4-flash 的（sensenova）
- 不再硬编码

platform/frontend/admin.html

@@ -111,7 +111,7 @@
                             <el-tag type="success" size="small" effect="dark">{{ defaultProvider }} ({{ defaultModel }})</el-tag>
                             <span style="color:#999">← 默认（趋势/采集/创作/优化）</span>
                             <span style="margin:0 4px;color:#ccc">|</span>
-                            <el-tag type="warning" size="small" effect="dark">sensenova (deepseek-v4-flash)</el-tag>
+                            <el-tag type="warning" size="small" effect="dark">{{ complianceProvider }} ({{ complianceModel }})</el-tag>
                             <span style="color:#999">← 合规审查固定</span>
                         </div>
                         <div class="toolbar">
@@ -1101,15 +1101,23 @@ const llmConfigs = ref([]);
                 });
 
                 const defaultProvider = computed(() => {
-                    const active = llmConfigs.value.filter(x => x.is_active);
-                    return active.length ? active[0].provider : '-';
+                    const sorted = [...llmConfigs.value].filter(x => x.is_active).sort((a, b) => a.id - b.id);
+                    return sorted.length ? sorted[0].provider : '-';
                 });
                 const defaultModel = computed(() => {
-                    const active = llmConfigs.value.filter(x => x.is_active);
-                    return active.length ? active[0].model : '-';
+                    const sorted = [...llmConfigs.value].filter(x => x.is_active).sort((a, b) => a.id - b.id);
+                    return sorted.length ? sorted[0].model : '-';
+                });
+                const complianceProvider = computed(() => {
+                    const c = [...llmConfigs.value].filter(x => x.is_active && x.model === 'deepseek-v4-flash');
+                    return c.length ? c[0].provider : '-';
+                });
+                const complianceModel = computed(() => {
+                    const c = [...llmConfigs.value].filter(x => x.is_active && x.model === 'deepseek-v4-flash');
+                    return c.length ? c[0].model : '-';
                 });
                 return {
-                    defaultProvider, defaultModel,
+                    defaultProvider, defaultModel, complianceProvider, complianceModel,
                     activeTab, switchTab,
                     llmConfigs, llmConfigsLoading, llmConfigDialogVisible, llmConfigForm, llmConfigDialogTitle, showLLMConfigDialog, saveLLMConfig, deleteLLMConfig,
                     platformConfigs, platformConfigsLoading, platformConfigsRequested, pcShowActiveOnly, showPcDialog, pcForm, pcDialogTitle, showPcDialogFn, savePcForm, editingPcPlatform,