feat(travel): 接入远端 AI 推荐服务，支持 GLM real 模式与本地静默回退

- createPlan 在配置 VITE_TRAVEL_ASSISTANT_API_BASE_URL 时调用 FastAPI 推荐服务
  做无坐标选点，路线/交通/时长仍由本机核算；远端不可用即静默回退本地规划
- 放开 loadPlan 对远端行程的回读限制（原 AI 冻结期禁用），行程页跳转不再丢行程
- planner/assistant 文案按是否启用远端如实切换，不再谎称「本期不调用 AI」
- 新增远端接通/回退/候选载荷单测；server/README 更新联调与 real 模式说明
- .env.development 默认指向已部署推荐服务；server/.env.example 补 GLM 示例

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.env.development

@@ -1 +1,8 @@
 # 在开发时进行加载
+
+# Deployed travel recommender (FastAPI, real GLM) on the gml box, exposed via
+# Tailscale Funnel. The /travel/ prefix is stripped by Tailscale before reaching
+# the app, so the client calls .../travel/api/v1/plans. Set to empty (or stop the
+# service) to use the deterministic local planner; on any remote error the client
+# silently falls back to local so the demo never breaks.
+VITE_TRAVEL_ASSISTANT_API_BASE_URL=https://desktop-gml.tailc2083d.ts.net/travel

server/.env.example

@@ -2,6 +2,9 @@
 LLM_MODE=mock
 
 # Configure these on the server only when LLM_MODE=real.
+# Any OpenAI-compatible endpoint works, e.g. Zhipu GLM:
+#   OPENAI_BASE_URL=https://open.bigmodel.cn/api/paas/v4
+#   OPENAI_MODEL=glm-4-flash   # free tier; use glm-4-plus etc. if you have credit
 OPENAI_API_KEY=
 OPENAI_BASE_URL=https://api.openai.com/v1
 OPENAI_MODEL=

server/README.md

@@ -2,7 +2,7 @@
 
 This FastAPI service is the server-only AI boundary for the Guangming travel POC. It defaults to deterministic `mock` mode. Model credentials belong only in `server/.env` or the deployment environment and must never be added to the mini-program build.
 
-This service is reserved for a later AI integration phase. The current mini-program `createPlan` entry point is hard-wired to the local planner and does not call this service.
+The mini-program calls this service when `VITE_TRAVEL_ASSISTANT_API_BASE_URL` is set (`.env.development` points it at `http://localhost:8000`). If that variable is empty, or the service is unreachable or returns an error, the client silently falls back to its deterministic local planner — so the demo always works. The model only ever recommends POIs from a coordinate-free client whitelist; route geometry, transfer estimates, and final itinerary time remain client responsibilities. The itinerary page labels the result `真实 AI 推荐` (real), `远端演示规划` (mock), or `本地 POC 规划` (local fallback).
 
 ## Contract
 
@@ -60,3 +60,16 @@ Run tests from the repository root:
 ```bash
 corepack pnpm server:test
 ```
+
+## Real model mode
+
+Mock mode is deterministic and needs no credentials. To use a real model, set `LLM_MODE=real` in `server/.env` (gitignored) with any OpenAI-compatible endpoint — for example Zhipu GLM:
+
+```
+LLM_MODE=real
+OPENAI_BASE_URL=https://open.bigmodel.cn/api/paas/v4
+OPENAI_MODEL=glm-4-flash
+OPENAI_API_KEY=<your key>
+```
+
+`GET /api/v1/health` then reports `mode=real, configured=true, ready=true`. With `pnpm server:dev` running, generate a plan from the mini-program (H5 dev server on `:5173` is already in `CORS_ORIGINS`; for `mp-weixin` enable “不校验合法域名” in the devtools). To force the local planner again, unset `VITE_TRAVEL_ASSISTANT_API_BASE_URL` or stop the server.

src/pages/assistant/index.vue

@@ -2,7 +2,7 @@
 import type { PoiResolved } from '@/domain/poi'
 import TravelPoiCard from '@/components/travel/TravelPoiCard.vue'
 import { getPoiRepository } from '@/data/poi'
-import { loadPlan } from '@/services/travel-assistant'
+import { isRemoteTravelAssistantEnabled, loadPlan } from '@/services/travel-assistant'
 import { useMapStore } from '@/stores'
 
 interface AssistantPrompt {
@@ -16,6 +16,7 @@ interface AssistantPrompt {
 const mapStore = useMapStore()
 const featuredPois = ref<PoiResolved[]>([])
 const hasSavedPlan = ref(false)
+const remoteAssistantEnabled = isRemoteTravelAssistantEnabled()
 
 const prompts: AssistantPrompt[] = [
   {
@@ -166,7 +167,7 @@ onShow(loadAssistantHome)
 
       <view class="assistant-notice">
         <text class="assistant-notice__title">POC 能力边界</text>
-        <text>本期不调用 AI，助手使用本地 POI 和确定性规则生成路线；当前路线为推荐游览顺序，不提供实时路况或逐段导航。</text>
+        <text>{{ remoteAssistantEnabled ? '已接入远端 AI：仅把无坐标的点位摘要发给模型选点，路线、交通与时长仍由本机核算；当前路线为推荐游览顺序，不提供实时路况或逐段导航。' : '本期不调用 AI，助手使用本地 POI 和确定性规则生成路线；当前路线为推荐游览顺序，不提供实时路况或逐段导航。' }}</text>
       </view>
     </view>
   </view>

src/pages/planner/index.vue

@@ -4,7 +4,7 @@ import type { BudgetLevel, Interest, Pace, PlanningRequest, Theme, Transport, Tr
 import { getPoiRepository } from '@/data/poi'
 import { TravelValidationError } from '@/domain/travel'
 import { isLocationSnapshotFresh } from '@/services/location'
-import { createPlan, loadPlanningRequest, loadPreferences, savePlan, savePreferences } from '@/services/travel-assistant'
+import { createPlan, isRemoteTravelAssistantEnabled, loadPlanningRequest, loadPreferences, savePlan, savePreferences } from '@/services/travel-assistant'
 import { useLocationStore } from '@/stores'
 
 interface PlannerPreset {
@@ -88,7 +88,8 @@ const durationText = computed(() => {
 })
 const usesCurrentLocation = computed(() => locationAvailable.value
   && (planningMode.value === 'quick' || customStartsFromCurrentLocation.value))
-const planningEngineLabel = '本地 POC 规划'
+const remoteAssistantEnabled = isRemoteTravelAssistantEnabled()
+const planningEngineLabel = remoteAssistantEnabled ? 'AI 辅助选点（远端）' : '本地 POC 规划'
 const locationActionText = computed(() => {
   if (locationStore.status === 'locating')
     return '定位中…'
@@ -466,7 +467,7 @@ onUnload(deactivatePlannerPage)
             <text class="planning-mode-card__copy">从全部 POI 中选 2-8 个编排</text>
           </button>
         </view>
-        <text class="planning-mode-tip">本期由本机完成选点、顺序、交通估算与时长核算。</text>
+        <text class="planning-mode-tip">{{ remoteAssistantEnabled ? 'AI 从审核点位白名单中选点；顺序、交通估算与时长核算由本机完成。' : '本期由本机完成选点、顺序、交通估算与时长核算。' }}</text>
       </view>
 
       <view class="planning-origin" :class="{ 'planning-origin--ready': locationAvailable }">
@@ -695,7 +696,7 @@ onUnload(deactivatePlannerPage)
     </view>
 
     <text class="planner-footer">
-      匿名使用 · 本期不调用 AI · 路线与偏好仅保存在本机
+      {{ remoteAssistantEnabled ? '匿名使用 · AI 仅收到无坐标的点位摘要 · 路线与偏好仅存本机' : '匿名使用 · 本期不调用 AI · 路线与偏好仅保存在本机' }}
     </text>
   </view>
 </template>

src/services/travel-assistant/index.ts

@@ -1,3 +1,5 @@
+export { isRemoteTravelAssistantEnabled } from './remote'
+export type { RemotePoiCandidateInput, RemoteRecommendationResponse } from './remote'
 export { adjustPlan, createPlan, getSessionPlanningOrigin } from './service'
 export {
   loadPlan,

src/services/travel-assistant/service.ts

@@ -1,17 +1,25 @@
+import type { PoiRepository } from '@/domain/poi'
 import { getPoiRepository } from '@/data/poi'
 import {
   adjustLocalPlan,
   clonePlanResponse,
   cloneTravelPreferences,
   createLocalPlan,
+  createRecommendedPlan,
   normalizePlanningRequest,
   normalizeTravelPreferences,
   type PlanningOrigin,
+  type PlanningRecommendation,
   type PlanningRequest,
   type PlanResponse,
   type TravelPreferences,
   TravelValidationError,
 } from '@/domain/travel'
+import {
+  createRemoteRecommendations,
+  isRemoteTravelAssistantEnabled,
+  type RemotePoiCandidateInput,
+} from './remote'
 import { loadPlan, loadPlanningRequest, loadPreferences, savePlanningRequest, savePreferences } from './storage'
 
 interface LocalSession {
@@ -82,6 +90,38 @@ function isPlanningRequest(input: TravelPreferences | PlanningRequest): input is
   return typeof input === 'object' && input !== null && 'mode' in input && 'preferences' in input
 }
 
+/**
+ * Builds the coordinate-free POI candidate whitelist sent to the remote service.
+ * Quick mode offers every published POI; custom mode offers only the user's picks.
+ * No coordinates ever leave the client.
+ */
+function buildRemoteCandidates(repository: PoiRepository, request: PlanningRequest): RemotePoiCandidateInput[] {
+  const pois = request.mode === 'custom'
+    ? request.selectedPoiIds.flatMap(poiId => repository.getPoiById(poiId) ?? [])
+    : repository.getPublishedPois()
+  return pois.map(poi => ({
+    id: poi.id,
+    name: poi.name,
+    categoryCode: poi.categoryCode,
+    tagCodes: poi.tagCodes,
+    summary: poi.summary,
+    recommendationIndex: poi.recommendationIndex,
+  }))
+}
+
+/** Asks the remote service for POI recommendations, then schedules them locally. */
+async function createRemotePlan(
+  request: PlanningRequest,
+  repository: PoiRepository,
+): Promise<PlanResponse> {
+  const candidates = buildRemoteCandidates(repository, request)
+  const remote = await createRemoteRecommendations(request, candidates)
+  // Array order is the suggested visit order; reasons travel with each POI.
+  const recommendations: PlanningRecommendation[] = remote.recommendations.map(({ poiId, reason }) => ({ poiId, reason }))
+  const source = remote.generationMode === 'real' ? 'remote_ai' : 'remote_mock'
+  return createRecommendedPlan(request, recommendations, repository, remote.assistantMessage, source)
+}
+
 export function createPlan(input: PlanningRequest): Promise<PlanResponse>
 export function createPlan(input: TravelPreferences, planningOrigin?: PlanningOrigin): Promise<PlanResponse>
 export async function createPlan(
@@ -98,7 +138,23 @@ export async function createPlan(
         selectedPoiIds: [],
         ...(normalizePlanningOrigin(planningOrigin) ? { origin: normalizePlanningOrigin(planningOrigin)! } : {}),
       }, repository)
+
+  if (isRemoteTravelAssistantEnabled()) {
+    try {
+      const plan = await createRemotePlan(request, repository)
+      rememberLocalSession(plan, request)
+      savePlanningRequest(request)
+      return clonePlanResponse(plan, repository)
+    }
+    catch (error) {
+      // Resilient POC default: never block the demo on a remote hiccup.
+      console.warn('Remote travel assistant unavailable, falling back to local planner', error)
+    }
+  }
+
   const plan = createLocalPlan(request, repository)
+  if (isRemoteTravelAssistantEnabled())
+    plan.assistantMessage = '远程行程服务暂不可用，已改用本机确定性规划生成路线。'
   rememberLocalSession(plan, request)
   savePlanningRequest(request)
   return clonePlanResponse(plan, repository)

src/services/travel-assistant/storage.ts

@@ -78,8 +78,9 @@ export function loadPlan(): PlanResponse | null {
   if (!envelope || envelope.datasetVersion !== repository.getDatasetMeta().datasetVersion)
     return null
   try {
-    const plan = normalizePlanResponse(envelope.payload, repository)
+    // All three sources (local_poc / remote_mock / remote_ai) are safe to restore:
-    return plan.source === 'local_poc' ? plan : null
+    // plans never carry coordinates, and normalizePlanResponse re-validates every field.
+    return normalizePlanResponse(envelope.payload, repository)
   }
   catch {
     return null

test/travel-assistant.test.ts

@@ -1,4 +1,4 @@
-import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 import { getPoiRepository } from '../src/data/poi'
 import {
   adjustLocalPlan,
@@ -550,12 +550,14 @@ describe('travel storage', () => {
     expect(loadPlan()).toBeNull()
   })
 
-  it('does not restore remote plans while AI planning is frozen', () => {
+  it('restores remote plans so the itinerary survives navigation', () => {
     const plan = createLocalPlan(preferences(), getPoiRepository())
     const remotePlan = { ...plan, source: 'remote_ai' as const }
     values.set(PLAN_STORAGE_KEY, storageEnvelope(remotePlan))
 
-    expect(loadPlan()).toBeNull()
+    const loaded = loadPlan()
+    expect(loaded).not.toBeNull()
+    expect(loaded?.source).toBe('remote_ai')
   })
 
   it('contains storage read failures and reports write failures', () => {
@@ -571,3 +573,88 @@ describe('travel storage', () => {
     expect(() => savePreferences(preferences())).toThrow('无法保存本机行程数据：quota exceeded')
   })
 })
+
+describe('remote travel assistant integration', () => {
+  const repository = getPoiRepository()
+  const publishedIds = repository.getPublishedPois().map(poi => poi.id)
+
+  beforeEach(() => {
+    // createPlan persists the planning request; keep storage harmless and isolated
+    // from the "quota exceeded" implementation left behind by the storage suite.
+    vi.mocked(uni.setStorageSync).mockImplementation(() => {})
+    vi.mocked(uni.getStorageSync).mockImplementation(() => undefined)
+  })
+
+  afterEach(() => {
+    vi.unstubAllEnvs()
+    vi.mocked(uni.request).mockReset()
+    vi.mocked(uni.setStorageSync).mockReset()
+    vi.mocked(uni.getStorageSync).mockReset()
+  })
+
+  function quickRequest(origin = true): PlanningRequest {
+    return {
+      mode: 'quick',
+      preferences: preferences(),
+      durationMinutes: 240,
+      selectedPoiIds: [],
+      ...(origin ? { origin: { longitude: 113.94, latitude: 22.76, coordinateSystem: 'GCJ02' } } : {}),
+    }
+  }
+
+  it('routes createPlan through the remote service, maps generation mode, and leaks no coordinates', async () => {
+    vi.stubEnv('VITE_TRAVEL_ASSISTANT_API_BASE_URL', 'http://localhost:8000')
+    let postedBody: { candidates?: Array<Record<string, unknown>>, origin?: unknown }
+    vi.mocked(uni.request).mockImplementation((options: { data?: unknown, success: (res: unknown) => void }) => {
+      postedBody = options.data as typeof postedBody
+      options.success({
+        statusCode: 200,
+        data: {
+          requestId: 'req-remote-1',
+          mode: 'quick',
+          assistantMessage: '远端演示推荐完成',
+          generationMode: 'mock',
+          recommendations: publishedIds.slice(0, 3).map((poiId, index) => ({
+            poiId,
+            reason: `远端推荐理由 ${index + 1}`,
+            order: index + 1,
+          })),
+        },
+      })
+      return {} as never
+    })
+
+    const plan = await createPlan(quickRequest())
+
+    expect(plan.source).toBe('remote_mock')
+    expect(plan.assistantMessage).toBe('远端演示推荐完成')
+    expect(plan.itinerary.items.every(item => item.reason.includes('远端推荐理由'))).toBe(true)
+    // The current location never leaves the client…
+    expect(postedBody!.origin).toBeUndefined()
+    expect(JSON.stringify(postedBody!)).not.toContain('113.94')
+    expect(JSON.stringify(postedBody!)).not.toContain('22.76')
+    // …candidates are coordinate-free and cover every published POI…
+    expect(postedBody!.candidates).toHaveLength(publishedIds.length)
+    const candidateKeys = new Set(postedBody!.candidates!.flatMap(candidate => Object.keys(candidate)))
+    expect(candidateKeys.has('longitude')).toBe(false)
+    expect(candidateKeys.has('latitude')).toBe(false)
+    expect(candidateKeys.has('summary')).toBe(true)
+    // …and the resulting plan carries no coordinates either.
+    expect(JSON.stringify(plan)).not.toContain('113.94')
+    expect(JSON.stringify(plan)).not.toContain('22.76')
+  })
+
+  it('falls back to the local planner when the remote service is unreachable', async () => {
+    vi.stubEnv('VITE_TRAVEL_ASSISTANT_API_BASE_URL', 'http://localhost:8000')
+    vi.mocked(uni.request).mockImplementation((options: { fail: () => void }) => {
+      options.fail()
+      return {} as never
+    })
+
+    const plan = await createPlan(quickRequest(false))
+
+    expect(vi.mocked(uni.request)).toHaveBeenCalled()
+    expect(plan.source).toBe('local_poc')
+    expect(plan.assistantMessage).toContain('已改用本机')
+  })
+})