fix(frontend): 按端点能力约束会话压缩映射

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

@@ -338,6 +338,7 @@ import {
   COMPACT_REQUEST_SCOPE_VALUE,
   formatModelMappingEndpointLabel,
   formatModelMappingRequestScope,
+  modelMappingEndpointScopeSupportsSessionCompaction,
   modelMappingOperationsKey,
   modelMappingOperationsFromScopeValue,
   modelMappingRequestScopeOptions,
@@ -430,6 +431,13 @@ const normalizedSelectedEndpointIds = computed(() => {
   return selected.length > 0 ? selected : undefined
 })
 
+const sessionCompactionScopeAvailable = computed(() => {
+  return modelMappingEndpointScopeSupportsSessionCompaction(
+    normalizedSelectedEndpointIds.value,
+    props.endpoints ?? [],
+  )
+})
+
 const endpointScopeSummary = computed(() => {
   const selected = normalizedSelectedEndpointIds.value
   if (!selected || selected.length === 0) {
@@ -472,12 +480,18 @@ const requestScopeValue = computed(() => {
 })
 
 const requestScopeOptions = computed(() => {
-  return modelMappingRequestScopeOptions(selectedOperations.value, requestScopeLabels.value)
+  return modelMappingRequestScopeOptions(
+    selectedOperations.value,
+    { sessionCompaction: sessionCompactionScopeAvailable.value },
+    requestScopeLabels.value,
+  )
 })
 
 const requestScopeDescription = computed(() => {
   if (requestScopeValue.value === ALL_REQUESTS_SCOPE_VALUE) {
-    return t('providers.modelMapping.scope.allRequestsDescription')
+    return sessionCompactionScopeAvailable.value
+      ? t('providers.modelMapping.scope.allRequestsDescription')
+      : t('providers.modelMapping.scope.allRequestsDefaultDescription')
   }
   if (requestScopeValue.value === COMPACT_REQUEST_SCOPE_VALUE) {
     return t('providers.modelMapping.scope.sessionCompactionDescription')
@@ -487,6 +501,12 @@ const requestScopeDescription = computed(() => {
   })
 })
 
+watch(
+  [() => props.endpoints, () => selectedEndpointIds.value],
+  () => normalizeUnavailableSessionCompactionScope(),
+  { deep: true },
+)
+
 // 所有已知名称集合
 const allKnownNames = computed(() => {
   const set = new Set<string>()
@@ -721,6 +741,7 @@ function initForm() {
   upstreamModels.value = []
   upstreamModelsLoaded.value = false
   collapsedGroups.value = new Set()
+  normalizeUnavailableSessionCompactionScope()
 }
 
 // 处理模型选择变更
@@ -729,9 +750,23 @@ function handleModelChange(value: string) {
 }
 
 function handleRequestScopeChange(value: string) {
+  if (
+    value === COMPACT_REQUEST_SCOPE_VALUE
+    && !sessionCompactionScopeAvailable.value
+  ) return
   selectedOperations.value = modelMappingOperationsFromScopeValue(value) ?? []
 }
 
+function normalizeUnavailableSessionCompactionScope() {
+  if (props.endpoints === undefined) return
+  if (
+    requestScopeValue.value === COMPACT_REQUEST_SCOPE_VALUE
+    && !sessionCompactionScopeAvailable.value
+  ) {
+    selectedOperations.value = []
+  }
+}
+
 // 生成作用域唯一键
 function getApiFormatsKey(formats: string[] | undefined): string {
   return getScopeKey(formats)

frontend/src/features/providers/components/__tests__/ModelMappingDialog.spec.ts

@@ -52,8 +52,21 @@ vi.mock('@/components/common/MultiSelect.vue', async () => {
   return {
     default: defineComponent({
       name: 'MultiSelectStub',
-      setup() {
-        return () => h('div')
+      props: {
+        modelValue: { type: Array, default: () => [] },
+        options: { type: Array, default: () => [] },
+      },
+      emits: ['update:modelValue'],
+      setup(props, { emit }) {
+        return () => h('div', (props.options as Array<{ value: string, label: string }>).map(option => h(
+          'button',
+          {
+            type: 'button',
+            'data-endpoint-id': option.value,
+            onClick: () => emit('update:modelValue', [option.value]),
+          },
+          option.label,
+        )))
       },
     }),
   }
@@ -108,6 +121,136 @@ afterEach(() => {
 })
 
 describe('ModelMappingDialog', () => {
+  it('offers session compaction only for an explicitly selected Responses endpoint', async () => {
+    const chatEndpoint = {
+      id: 'endpoint-chat',
+      api_format: 'openai:chat',
+      base_url: 'https://api.example.com/v1',
+      is_active: true,
+    } as ProviderEndpoint
+    const responsesEndpoint = {
+      id: 'endpoint-responses',
+      api_format: 'openai:responses',
+      base_url: 'https://api.example.com/v1',
+      is_active: true,
+    } as ProviderEndpoint
+    const model = {
+      id: 'model-sol',
+      provider_model_name: 'gpt-5.6-sol',
+      global_model_display_name: 'GPT-5.6 Sol',
+      provider_model_mappings: [],
+    } as Model
+    const open = ref(false)
+    const root = document.createElement('div')
+    document.body.appendChild(root)
+    const app = createApp(defineComponent({
+      setup() {
+        return () => h(ModelMappingDialog, {
+          open: open.value,
+          providerId: 'provider-1',
+          endpoints: [chatEndpoint, responsesEndpoint],
+          models: [model],
+          preselectedModelId: model.id,
+          'onUpdate:open': (value: boolean) => { open.value = value },
+        })
+      },
+    }))
+    app.mount(root)
+    mountedApps.push({ app, root })
+
+    open.value = true
+    await nextTick()
+    await nextTick()
+
+    expect(root.textContent).toContain('所有请求')
+    expect(root.textContent).not.toContain('仅会话压缩')
+
+    root.querySelector<HTMLButtonElement>('[data-endpoint-id="endpoint-chat"]')?.click()
+    await nextTick()
+    expect(root.textContent).not.toContain('仅会话压缩')
+
+    root.querySelector<HTMLButtonElement>('[data-endpoint-id="endpoint-responses"]')?.click()
+    await nextTick()
+    expect(root.textContent).toContain('仅会话压缩')
+  })
+
+  it('returns to all requests when a compact mapping switches away from Responses', async () => {
+    const responsesEndpoint = {
+      id: 'endpoint-responses',
+      api_format: 'openai:responses',
+      base_url: 'https://api.example.com/v1',
+      is_active: true,
+    } as ProviderEndpoint
+    const chatEndpoint = {
+      id: 'endpoint-chat',
+      api_format: 'openai:chat',
+      base_url: 'https://api.example.com/v1',
+      is_active: true,
+    } as ProviderEndpoint
+    const model = {
+      id: 'model-sol',
+      provider_model_name: 'gpt-5.6-sol',
+      global_model_display_name: 'GPT-5.6 Sol',
+      provider_model_mappings: [{
+        name: 'gpt-5.6-luna',
+        priority: 1,
+        endpoint_ids: [responsesEndpoint.id],
+        operations: ['compact'],
+      }],
+    } as Model
+    const editingGroup: AliasGroup = {
+      model,
+      apiFormatsKey: '',
+      apiFormats: [],
+      endpointIdsKey: responsesEndpoint.id,
+      endpointIds: [responsesEndpoint.id],
+      operationsKey: 'compact',
+      operations: ['compact'],
+      aliases: model.provider_model_mappings ?? [],
+    }
+    const open = ref(false)
+    const root = document.createElement('div')
+    document.body.appendChild(root)
+    const app = createApp(defineComponent({
+      setup() {
+        return () => h(ModelMappingDialog, {
+          open: open.value,
+          providerId: 'provider-1',
+          endpoints: [responsesEndpoint, chatEndpoint],
+          models: [model],
+          editingGroup,
+          'onUpdate:open': (value: boolean) => { open.value = value },
+        })
+      },
+    }))
+    app.mount(root)
+    mountedApps.push({ app, root })
+
+    open.value = true
+    await nextTick()
+    await nextTick()
+    expect(root.textContent).toContain('仅会话压缩')
+
+    root.querySelector<HTMLButtonElement>('[data-endpoint-id="endpoint-chat"]')?.click()
+    await nextTick()
+    expect(root.textContent).not.toContain('仅会话压缩')
+    expect(root.querySelector<HTMLButtonElement>('[role="radio"][aria-checked="true"]')?.textContent)
+      .toContain('所有请求')
+
+    const saveButton = [...root.querySelectorAll('button')]
+      .find(button => button.textContent?.includes('保存映射'))
+    saveButton?.click()
+    await vi.waitFor(() => expect(updateModel).toHaveBeenCalledTimes(1))
+
+    expect(updateModel).toHaveBeenCalledWith('provider-1', 'model-sol', {
+      provider_model_mappings: [{
+        name: 'gpt-5.6-luna',
+        priority: 1,
+        endpoint_ids: [chatEndpoint.id],
+      }],
+    })
+  })
+
   it('normalizes and replaces an edited compact operation scope', async () => {
     const endpoint = {
       id: 'endpoint-responses',