Update planner, check-in records, location service and tests

test/current-location.test.ts

@@ -1,5 +1,9 @@
 import { beforeEach, describe, expect, it, vi } from 'vitest'
-import { getCurrentGcj02Location, isLocationPermissionDenied } from '../src/services/location'
+import {
+  getCurrentGcj02Location,
+  isLocationPermissionDenied,
+  isLocationSnapshotFresh,
+} from '../src/services/location'
 
 describe('current location adapter', () => {
   beforeEach(() => {
@@ -73,4 +77,16 @@ describe('current location adapter', () => {
     expect(isLocationPermissionDenied({ errMsg: 'getLocation:fail privacy permission is not authorized' })).toBe(false)
     expect(isLocationPermissionDenied({ errMsg: 'getLocation:fail system error' })).toBe(false)
   })
+
+  it('evaluates location freshness at exact boundaries and rejects invalid clocks', () => {
+    const capturedAt = '2026-07-31T02:00:00.000Z'
+    const capturedTimestamp = Date.parse(capturedAt)
+    const maxAgeMs = 5 * 60 * 1000
+
+    expect(isLocationSnapshotFresh(capturedAt, capturedTimestamp, maxAgeMs)).toBe(true)
+    expect(isLocationSnapshotFresh(capturedAt, capturedTimestamp + maxAgeMs, maxAgeMs)).toBe(true)
+    expect(isLocationSnapshotFresh(capturedAt, capturedTimestamp + maxAgeMs + 1, maxAgeMs)).toBe(false)
+    expect(isLocationSnapshotFresh(capturedAt, capturedTimestamp - 1, maxAgeMs)).toBe(false)
+    expect(isLocationSnapshotFresh('invalid', capturedTimestamp, maxAgeMs)).toBe(false)
+  })
 })