fix(channels): support kimi/zhipu/deepseek platforms in channel pricing

- ChannelsView platformOrder now includes the three CN provider
  platforms so channel pricing can be configured for them; composite
  group expansion/attachment stays limited to the five main platforms
  (matches backend isConcreteRequestPlatform and composite-routes
  target_platform validation)
- SyncPricingModels maps kimi->moonshot, zhipu->zhipu,
  deepseek->deepseek; also fixes gemini mapping to "google" which
  matched zero catalog entries (provider key is "gemini")
- Add CN platform colors to channel pricing model tag classes

backend/internal/handler/admin/channel_handler.go

@@ -568,9 +568,12 @@ func (h *ChannelHandler) GetModelDefaultPricing(c *gin.Context) {
 var platformToLiteLLMProvider = map[string]string{
 	service.PlatformAnthropic:   "anthropic",
 	service.PlatformOpenAI:      "openai",
-	service.PlatformGemini:      "google",
+	service.PlatformGemini:      "gemini",
 	service.PlatformAntigravity: "anthropic",
 	service.PlatformGrok:        "xai",
+	service.PlatformKimi:        "moonshot",
+	service.PlatformZhipu:       "zhipu",
+	service.PlatformDeepseek:    "deepseek",
 }
 
 // SyncPricingModels 返回 LiteLLM 定价目录中指定平台的最新模型列表

backend/internal/handler/admin/channel_handler_test.go

@@ -502,7 +502,7 @@ func TestSyncPricingModels_ValidPlatform_EmptyService(t *testing.T) {
 	svc := service.NewPricingService(nil, nil)
 	router := setupSyncPricingModelsRouter(svc)
 
-	for _, platform := range []string{"anthropic", "openai", "gemini", "antigravity"} {
+	for _, platform := range []string{"anthropic", "openai", "gemini", "antigravity", "grok", "kimi", "zhipu", "deepseek"} {
 		req := httptest.NewRequest(http.MethodGet, "/channels/pricing/sync-models?platform="+platform, nil)
 		w := httptest.NewRecorder()
 		router.ServeHTTP(w, req)

frontend/src/components/admin/channel/types.ts

@@ -368,6 +368,9 @@ export function getPlatformTagClass(platform: string): string {
     case 'gemini': return 'bg-blue-100 text-blue-700 dark:bg-blue-900/30 dark:text-blue-400'
     case 'antigravity': return 'bg-purple-100 text-purple-700 dark:bg-purple-900/30 dark:text-purple-400'
     case 'grok': return 'bg-slate-100 text-slate-700 dark:bg-slate-800 dark:text-slate-300'
+    case 'kimi': return 'bg-pink-100 text-pink-700 dark:bg-pink-900/30 dark:text-pink-400'
+    case 'zhipu': return 'bg-indigo-100 text-indigo-700 dark:bg-indigo-900/30 dark:text-indigo-400'
+    case 'deepseek': return 'bg-teal-100 text-teal-700 dark:bg-teal-900/30 dark:text-teal-400'
     default: return 'bg-gray-100 text-gray-700 dark:bg-gray-900/30 dark:text-gray-400'
   }
 }
@@ -380,6 +383,9 @@ export function getPlatformTextClass(platform: string): string {
     case 'gemini': return 'text-blue-700 dark:text-blue-400'
     case 'antigravity': return 'text-purple-700 dark:text-purple-400'
     case 'grok': return 'text-slate-700 dark:text-slate-300'
+    case 'kimi': return 'text-pink-700 dark:text-pink-400'
+    case 'zhipu': return 'text-indigo-700 dark:text-indigo-400'
+    case 'deepseek': return 'text-teal-700 dark:text-teal-400'
     default: return ''
   }
 }

frontend/src/views/admin/ChannelsView.vue

@@ -762,7 +762,10 @@ const form = reactive({
 let abortController: AbortController | null = null
 
 // ── Platform config ──
-const platformOrder: GroupPlatform[] = ['anthropic', 'openai', 'gemini', 'antigravity', 'grok']
+const platformOrder: GroupPlatform[] = ['anthropic', 'openai', 'gemini', 'antigravity', 'grok', 'kimi', 'zhipu', 'deepseek']
+// composite 分组仅覆盖主平台（与后端 isConcreteRequestPlatform / composite-routes target_platform 一致），
+// 不含国产供应商平台。
+const compositePlatforms: GroupPlatform[] = ['anthropic', 'openai', 'gemini', 'antigravity', 'grok']
 
 // ── Helpers ──
 function formatDate(value: string): string {
@@ -801,7 +804,9 @@ function togglePlatform(platform: GroupPlatform) {
 }
 
 function getGroupsForPlatform(platform: GroupPlatform): AdminGroup[] {
-  return allGroups.value.filter(g => g.platform === platform || g.platform === 'composite')
+  return allGroups.value.filter(
+    g => g.platform === platform || (g.platform === 'composite' && compositePlatforms.includes(platform))
+  )
 }
 
 // ── Group helpers ──
@@ -1183,7 +1188,7 @@ function apiToForm(channel: Channel): PlatformSection[] {
   for (const gid of channel.group_ids || []) {
     const p = groupPlatformMap.get(gid)
     if (p === 'composite') {
-      platformOrder.forEach(platform => activePlatforms.add(platform))
+      compositePlatforms.forEach(platform => activePlatforms.add(platform))
     } else if (p) {
       activePlatforms.add(p)
     }
@@ -1202,7 +1207,8 @@ function apiToForm(channel: Channel): PlatformSection[] {
 
     const groupIds = (channel.group_ids || []).filter(gid => {
       const groupPlatform = groupPlatformMap.get(gid)
-      return groupPlatform === platform || groupPlatform === 'composite'
+      return groupPlatform === platform ||
+        (groupPlatform === 'composite' && compositePlatforms.includes(platform))
     })
     const mapping = (channel.model_mapping || {})[platform] || {}
     const pricing = (channel.model_pricing || [])