feat(kimi): forward native OpenAI Responses API

Moonshot pay-as-you-go and Kimi For Coding both expose native
/v1/responses. Stop converting Kimi Responses traffic to Chat
Completions, and treat Kimi like DeepSeek for protocol selection while
keeping /v1/responses URL construction.

frontend/src/components/account/CreateAccountModal.vue

@@ -1319,7 +1319,7 @@
               />
             </div>
           </div>
-          <p v-if="form.platform !== 'deepseek'" class="input-hint">
+          <p v-if="!cnSupportsNativeResponses(form.platform)" class="input-hint">
             {{ t('admin.accounts.cnProviders.apiProtocol.responsesFallbackDesc') }}
           </p>
         </div>
@@ -3814,6 +3814,7 @@ import {
   applyAntigravityProjectID,
   applyHeaderOverride,
   applyInterceptWarmup,
+  cnSupportsNativeResponses,
   defaultCNAdaptiveBaseUrls,
   defaultCNBaseUrl,
   isHeaderOverrideCapable,
@@ -4006,7 +4007,7 @@ const upstreamBillingAutoProbeEnabled = ref(true)
 // ── 国产供应商（Kimi / Zhipu / DeepSeek）账号类型、API 协议与端点 ──
 const accountMode = ref<CnAccountMode>('payg')
 // API 协议决定转发端点与格式：cc=现有转换链，anthropic=原生直通（Claude Code），
-// responses=deepseek 原生 Responses 端点（Codex）。与账号类型正交。
+// responses=deepseek / kimi 原生 Responses 端点（Codex）。与账号类型正交。
 const apiProtocol = ref<CnApiProtocol>('adaptive')
 // 智谱团队版 Coding Plan：组织/项目 ID，写入 credentials 供额度探测切换团队端点
 const zhipuOrganization = ref('')
@@ -4027,14 +4028,14 @@ const cnPresetPlatform = computed<'kimi' | 'zhipu' | 'deepseek'>(() => {
   }
   return 'kimi'
 })
-// 当前平台可选的协议档（responses 仅 deepseek）。
+// 当前平台可选的协议档（responses 仅 deepseek / kimi）。
 const cnProtocolOptions = computed<Array<{ value: CnApiProtocol; labelKey: string }>>(() => {
   const opts: Array<{ value: CnApiProtocol; labelKey: string }> = [
     { value: 'adaptive', labelKey: 'adaptive' },
     { value: 'chat_completions', labelKey: 'chatCompletions' },
     { value: 'anthropic', labelKey: 'anthropic' }
   ]
-  if (form.platform === 'deepseek') {
+  if (cnSupportsNativeResponses(form.platform)) {
     opts.push({ value: 'responses', labelKey: 'responses' })
   }
   return opts
@@ -4044,7 +4045,7 @@ const cnAdaptiveProtocolOptions = computed<Array<{ value: CnNativeApiProtocol; l
     { value: 'chat_completions', labelKey: 'chatCompletions' },
     { value: 'anthropic', labelKey: 'anthropic' }
   ]
-  if (form.platform === 'deepseek') opts.push({ value: 'responses', labelKey: 'responses' })
+  if (cnSupportsNativeResponses(form.platform)) opts.push({ value: 'responses', labelKey: 'responses' })
   return opts
 })
 

frontend/src/components/account/EditAccountModal.vue

@@ -72,7 +72,7 @@
               <input v-model="editAdaptiveBaseUrls[item.value]" type="text" class="input" />
             </div>
           </div>
-          <p v-if="account.platform !== 'deepseek'" class="input-hint">
+          <p v-if="!cnSupportsNativeResponses(account.platform)" class="input-hint">
             {{ t('admin.accounts.cnProviders.apiProtocol.responsesFallbackDesc') }}
           </p>
         </div>
@@ -2909,6 +2909,7 @@ import {
   isHeaderOverrideCapable,
   splitHeaderOverridesObject,
   validateHeaderOverrideRows,
+  cnSupportsNativeResponses,
   defaultCNAdaptiveBaseUrls,
   defaultCNBaseUrl,
   HEADER_OVERRIDE_ENABLED_CREDENTIAL_KEY,
@@ -3057,7 +3058,7 @@ const cnProtocolOptions = computed<Array<{ value: CnApiProtocol; labelKey: strin
     { value: 'chat_completions', labelKey: 'chatCompletions' },
     { value: 'anthropic', labelKey: 'anthropic' }
   ]
-  if (props.account?.platform === 'deepseek') {
+  if (cnSupportsNativeResponses(props.account?.platform ?? '')) {
     opts.push({ value: 'responses', labelKey: 'responses' })
   }
   return opts
@@ -3067,7 +3068,7 @@ const editAdaptiveProtocolOptions = computed<Array<{ value: CnNativeApiProtocol;
     { value: 'chat_completions', labelKey: 'chatCompletions' },
     { value: 'anthropic', labelKey: 'anthropic' }
   ]
-  if (props.account?.platform === 'deepseek') opts.push({ value: 'responses', labelKey: 'responses' })
+  if (cnSupportsNativeResponses(props.account?.platform ?? '')) opts.push({ value: 'responses', labelKey: 'responses' })
   return opts
 })
 watch(editApiProtocol, (protocol, previousProtocol) => {
@@ -3947,7 +3948,7 @@ const syncFormFromAccount = (newAccount: Account | null) => {
         storedProtocol === 'responses'
           ? storedProtocol
           : 'chat_completions'
-      if (newAccount.platform !== 'deepseek' && editApiProtocol.value === 'responses') {
+      if (!cnSupportsNativeResponses(newAccount.platform) && editApiProtocol.value === 'responses') {
         editApiProtocol.value = 'chat_completions'
       }
       const adaptiveDefaults = defaultCNAdaptiveBaseUrls(newAccount.platform, editAccountMode.value)

frontend/src/components/account/__tests__/CreateAccountModal.spec.ts

@@ -375,7 +375,31 @@ describe('CreateAccountModal OpenAI long-context billing', () => {
       base_url: 'https://api.moonshot.cn/v1',
       api_base_urls: {
         chat_completions: 'https://api.moonshot.cn/v1',
-        anthropic: 'https://api.moonshot.cn/anthropic'
+        anthropic: 'https://api.moonshot.cn/anthropic',
+        responses: 'https://api.moonshot.cn/v1'
+      }
+    })
+  })
+
+  it('submits adaptive Kimi Coding Plan Responses endpoint', async () => {
+    const wrapper = mountModal()
+    await selectButtonByText(wrapper, 'Kimi')
+    await selectButtonByText(wrapper, 'admin.accounts.cnProviders.accountMode.coding')
+    await wrapper.get('form#create-account-form input[type="text"]').setValue('Kimi coding')
+    await wrapper.get('form#create-account-form input[type="password"]').setValue('sk-kimi-coding')
+
+    await wrapper.get('form#create-account-form').trigger('submit.prevent')
+    await flushPromises()
+
+    expect(createAccountMock).toHaveBeenCalledTimes(1)
+    expect(createAccountMock.mock.calls[0]?.[0]?.credentials).toMatchObject({
+      account_mode: 'coding',
+      api_protocol: 'adaptive',
+      base_url: 'https://api.kimi.com/coding/v1',
+      api_base_urls: {
+        chat_completions: 'https://api.kimi.com/coding/v1',
+        anthropic: 'https://api.kimi.com/coding',
+        responses: 'https://api.kimi.com/coding/v1'
       }
     })
   })

frontend/src/components/account/__tests__/EditAccountModal.spec.ts

@@ -355,6 +355,39 @@ describe('EditAccountModal', () => {
     })
   })
 
+  it('preserves adaptive Kimi Responses endpoint on submit', async () => {
+    const account = buildAccount()
+    account.platform = 'kimi'
+    account.credentials = {
+      api_key: 'sk-kimi',
+      account_mode: 'payg',
+      api_protocol: 'adaptive',
+      base_url: 'https://api.moonshot.cn/v1',
+      api_base_urls: {
+        chat_completions: 'https://api.moonshot.cn/v1',
+        anthropic: 'https://api.moonshot.cn/anthropic',
+        responses: 'https://api.moonshot.cn/v1'
+      }
+    }
+    updateAccountMock.mockReset().mockResolvedValue(account)
+    checkMixedChannelRiskMock.mockReset().mockResolvedValue({ has_risk: false })
+
+    const wrapper = mountModal(account)
+    await wrapper.get('form#edit-account-form').trigger('submit.prevent')
+
+    expect(updateAccountMock).toHaveBeenCalledTimes(1)
+    expect(updateAccountMock.mock.calls[0]?.[1]?.credentials).toMatchObject({
+      account_mode: 'payg',
+      api_protocol: 'adaptive',
+      base_url: 'https://api.moonshot.cn/v1',
+      api_base_urls: {
+        chat_completions: 'https://api.moonshot.cn/v1',
+        anthropic: 'https://api.moonshot.cn/anthropic',
+        responses: 'https://api.moonshot.cn/v1'
+      }
+    })
+  })
+
   it('preserves adaptive GLM endpoints on submit', async () => {
     const account = buildAccount()
     account.platform = 'zhipu'

frontend/src/components/account/__tests__/credentialsBuilder.cnAdaptive.spec.ts

@@ -1,18 +1,27 @@
 import { describe, expect, it } from 'vitest'
 
-import { defaultCNAdaptiveBaseUrls } from '../credentialsBuilder'
+import { cnSupportsNativeResponses, defaultCNAdaptiveBaseUrls } from '../credentialsBuilder'
+
+describe('cnSupportsNativeResponses', () => {
+  it('is true for DeepSeek and Kimi only', () => {
+    expect(cnSupportsNativeResponses('deepseek')).toBe(true)
+    expect(cnSupportsNativeResponses('kimi')).toBe(true)
+    expect(cnSupportsNativeResponses('zhipu')).toBe(false)
+    expect(cnSupportsNativeResponses('openai')).toBe(false)
+  })
+})
 
 describe('defaultCNAdaptiveBaseUrls', () => {
   it('resolves Kimi endpoints by account mode', () => {
     expect(defaultCNAdaptiveBaseUrls('kimi', 'payg')).toEqual({
       chat_completions: 'https://api.moonshot.cn/v1',
       anthropic: 'https://api.moonshot.cn/anthropic',
-      responses: ''
+      responses: 'https://api.moonshot.cn/v1'
     })
     expect(defaultCNAdaptiveBaseUrls('kimi', 'coding')).toEqual({
       chat_completions: 'https://api.kimi.com/coding/v1',
       anthropic: 'https://api.kimi.com/coding',
-      responses: ''
+      responses: 'https://api.kimi.com/coding/v1'
     })
   })
 

frontend/src/components/account/credentialsBuilder.ts

@@ -256,10 +256,15 @@ export const GROK_BASE_URL_PRESETS: GrokBaseUrlPreset[] = [
 
 export type CnAccountMode = 'payg' | 'coding'
 
-/** 仅 deepseek 支持原生 responses；adaptive 会按入站协议选择原生端点。 */
+/** deepseek / kimi 支持原生 responses；adaptive 会按入站协议选择原生端点。 */
 export type CnApiProtocol = 'adaptive' | 'chat_completions' | 'anthropic' | 'responses'
 export type CnNativeApiProtocol = Exclude<CnApiProtocol, 'adaptive'>
 
+/** DeepSeek 与 Kimi（按量付费 / Coding Plan）提供原生 Responses 端点。 */
+export function cnSupportsNativeResponses(platform: string): boolean {
+  return platform === 'deepseek' || platform === 'kimi'
+}
+
 export interface CnBaseUrlPreset {
   mode: CnAccountMode
   protocol: CnApiProtocol
@@ -273,8 +278,10 @@ export const CN_BASE_URL_PRESETS: Record<'kimi' | 'zhipu' | 'deepseek', CnBaseUr
   kimi: [
     { mode: 'payg', protocol: 'chat_completions', label: 'Moonshot', url: 'https://api.moonshot.cn/v1' },
     { mode: 'payg', protocol: 'anthropic', label: 'Moonshot Anthropic', url: 'https://api.moonshot.cn/anthropic' },
+    { mode: 'payg', protocol: 'responses', label: 'Moonshot Responses', url: 'https://api.moonshot.cn/v1' },
     { mode: 'coding', protocol: 'chat_completions', label: 'Kimi For Coding', url: 'https://api.kimi.com/coding/v1' },
-    { mode: 'coding', protocol: 'anthropic', label: 'Kimi Coding Anthropic', url: 'https://api.kimi.com/coding' }
+    { mode: 'coding', protocol: 'anthropic', label: 'Kimi Coding Anthropic', url: 'https://api.kimi.com/coding' },
+    { mode: 'coding', protocol: 'responses', label: 'Kimi Coding Responses', url: 'https://api.kimi.com/coding/v1' }
   ],
   zhipu: [
     { mode: 'payg', protocol: 'chat_completions', label: 'GLM PaaS', url: 'https://open.bigmodel.cn/api/paas/v4' },
@@ -307,7 +314,7 @@ export function defaultCNBaseUrl(
         return ''
     }
   }
-  // responses 仅 deepseek：base 与 chat_completions 相同（端点路径差异由后端处理）。
+  // responses：Kimi / DeepSeek 的 base 与 chat_completions 相同（端点路径差异由后端处理）。
   switch (platform) {
     case 'kimi':
       return mode === 'coding' ? 'https://api.kimi.com/coding/v1' : 'https://api.moonshot.cn/v1'
@@ -330,7 +337,7 @@ export function defaultCNAdaptiveBaseUrls(
   return {
     chat_completions: defaultCNBaseUrl(platform, mode, 'chat_completions'),
     anthropic: defaultCNBaseUrl(platform, mode, 'anthropic'),
-    responses: platform === 'deepseek' ? defaultCNBaseUrl(platform, mode, 'responses') : ''
+    responses: cnSupportsNativeResponses(platform) ? defaultCNBaseUrl(platform, mode, 'responses') : ''
   }
 }