统一楼层视觉基线与详情返回复位

tests/e2e/three-map-camera-stability.spec.ts

@@ -60,7 +60,13 @@ interface VisualStabilityApi {
   getFloors: () => FloorReport[]
   switchFloor: (floorId: string) => Promise<void>
   showOverview: () => Promise<void>
+  resetToViewBaseline: (options: {
+    view: 'overview' | 'floor'
+    floorId?: string
+    reason: 'poi-detail-close' | 'manual-reset' | 'floor-reset'
+  }) => Promise<boolean>
   resetToInitialState: () => Promise<boolean>
+  getFloorBaseline: (floorId: string) => CameraReport | null
   getFloorPois: (floorId: string) => Promise<PoiFocusCandidate[]>
   focusTargetPoi: (request: {
     requestId: number | string
@@ -432,3 +438,34 @@ test('reset invalidates an in-flight cross-floor focus before it can overwrite t
   expect(report.hasPendingTargetFocus).toBe(false)
   expect(report.focus).toBeNull()
 })
+
+test('floor view baseline is deterministic across repeated resets', async ({ page }) => {
+  await page.goto('/')
+  await Promise.all([
+    page.waitForURL(/tab=guide/, { timeout: 30_000 }),
+    page.getByText('馆内', { exact: true }).click()
+  ])
+  await expect.poll(async () => (await getApiState(page))?.floors.length ?? 0, { timeout: 180_000 }).toBeGreaterThan(0)
+  const state = await getApiState(page)
+  expect(state).not.toBeNull()
+
+  for (const floor of state!.floors) {
+    await page.evaluate(async (floorId) => {
+      const api = (window as Window & { __GUIDE_3D_VISUAL_STABILITY__?: VisualStabilityApi })
+        .__GUIDE_3D_VISUAL_STABILITY__
+      if (!api) throw new Error('ThreeMap visual stability diagnostics unavailable')
+      await api.resetToViewBaseline({ view: 'floor', floorId, reason: 'floor-reset' })
+    }, floor.floorId)
+    const first = await getReport(page)
+    await page.evaluate(async (floorId) => {
+      const api = (window as Window & { __GUIDE_3D_VISUAL_STABILITY__?: VisualStabilityApi })
+        .__GUIDE_3D_VISUAL_STABILITY__
+      if (!api) throw new Error('ThreeMap visual stability diagnostics unavailable')
+      await api.resetToViewBaseline({ view: 'floor', floorId, reason: 'floor-reset' })
+    }, floor.floorId)
+    const second = await getReport(page)
+    expect(second.activeView).toBe('floor')
+    expect(second.floorId).toBe(floor.floorId)
+    expect(getMaximumCameraDelta(first.camera, second.camera)).toBeLessThan(1e-6)
+  }
+})