fix: 修复模型权限正则匹配逻辑及相关缓存清除

- 修复 model_mappings 正则匹配不再受 candidate_models 限制
- Provider 启用/禁用/删除时清除 GlobalModel 解析缓存
- 优先级管理对话框中启用的 Provider 排在禁用的前面
- 修复请求时间线 skipped 状态颜色适配主题

frontend/src/features/providers/components/PriorityManagementDialog.vue

@@ -567,10 +567,20 @@ const availableFormats = computed(() => {
   return Object.keys(keysByFormat.value).sort()
 })
 
+// 排序 providers：启用的在前，停用的在后，各自按优先级排序
+function sortProvidersByActiveAndPriority(providers: ProviderWithEndpointsSummary[]) {
+  return [...providers].sort((a, b) => {
+    if (a.is_active !== b.is_active) {
+      return a.is_active ? -1 : 1
+    }
+    return a.provider_priority - b.provider_priority
+  })
+}
+
 // 监听 props.providers 变化
 watch(() => props.providers, (newProviders) => {
   if (newProviders) {
-    sortedProviders.value = [...newProviders].sort((a, b) => a.provider_priority - b.provider_priority)
+    sortedProviders.value = sortProvidersByActiveAndPriority(newProviders)
   }
 }, { immediate: true })
 
@@ -691,8 +701,8 @@ function finishEditProviderPriority(provider: ProviderWithEndpointsSummary, even
         provider_priority: newPriority
       }
     }
-    // 按 provider_priority 重新排序
-    sortedProviders.value = [...sortedProviders.value].sort((a, b) => a.provider_priority - b.provider_priority)
+    // 重新排序
+    sortedProviders.value = sortProvidersByActiveAndPriority(sortedProviders.value)
   }
 
   editingProviderPriority.value = null
@@ -777,7 +787,7 @@ function handleProviderDrop(dropIndex: number) {
   })
 
   // 重新排序
-  sortedProviders.value = [...items].sort((a, b) => a.provider_priority - b.provider_priority)
+  sortedProviders.value = sortProvidersByActiveAndPriority(items)
   draggedProvider.value = null
   dragOverProvider.value = null
 }

frontend/src/features/usage/components/HorizontalRequestTimeline.vue

@@ -905,7 +905,7 @@ const getStatusColorClass = (status: string) => {
 .sub-dot.status-failed { background: #ef4444; color: #ef4444; }
 .sub-dot.status-cancelled { background: #f59e0b; color: #f59e0b; }
 .sub-dot.status-pending { background: #3b82f6; color: #3b82f6; }
-.sub-dot.status-skipped { background: #1f2937; color: #1f2937; }
+.sub-dot.status-skipped { background: hsl(var(--primary)); color: hsl(var(--primary)); }
 .sub-dot.status-available { background: #d1d5db; color: #d1d5db; }
 
 /* 选中状态：呼吸动画 + 涟漪效果 */
@@ -968,7 +968,7 @@ const getStatusColorClass = (status: string) => {
 .node-dot.status-failed { color: #ef4444; }
 .node-dot.status-cancelled { color: #f59e0b; }
 .node-dot.status-pending { color: #3b82f6; }
-.node-dot.status-skipped { color: #1f2937; }
+.node-dot.status-skipped { color: hsl(var(--primary)); }
 .node-dot.status-available { color: #d1d5db; }
 
 .node-line {
@@ -1016,7 +1016,7 @@ const getStatusColorClass = (status: string) => {
 .title-dot.status-failed { background: #ef4444; }
 .title-dot.status-cancelled { background: #f59e0b; }
 .title-dot.status-pending { background: #3b82f6; }
-.title-dot.status-skipped { background: #1f2937; }
+.title-dot.status-skipped { background: hsl(var(--primary)); }
 .title-dot.status-available { background: #d1d5db; }
 
 .title-text {
@@ -1090,27 +1090,27 @@ const getStatusColorClass = (status: string) => {
 
 .status-tag.status-success {
   background: #22c55e20;
-  color: #16a34a;
+  color: #22c55e;
 }
 
 .status-tag.status-failed {
   background: #ef444420;
-  color: #dc2626;
+  color: #ef4444;
 }
 
 .status-tag.status-cancelled {
   background: #f59e0b20;
-  color: #d97706;
+  color: #f59e0b;
 }
 
 .status-tag.status-pending {
   background: #3b82f620;
-  color: #2563eb;
+  color: #3b82f6;
 }
 
 .status-tag.status-skipped {
-  background: #1f293720;
-  color: #1f2937;
+  background: hsl(var(--primary) / 0.15);
+  color: hsl(var(--primary));
 }
 
 .status-tag.status-available {