Add live journal OWM weather and manual GPS fix dialog.

Fetch OpenWeatherMap in live log when a GPS fix is under six hours old, open a fix modal with manual coordinates when geolocation fails, and only show the undo bar after a successful save.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/utils/openWeatherMap.test.ts

@@ -0,0 +1,29 @@
+import { describe, expect, it } from 'vitest'
+import {
+  formatWindStrengthBeaufort,
+  mpsToBeaufort,
+  parseOwmCurrentWeather
+} from './openWeatherMap.js'
+
+describe('openWeatherMap', () => {
+  it('maps m/s to Beaufort', () => {
+    expect(mpsToBeaufort(0)).toBe(0)
+    expect(mpsToBeaufort(5)).toBe(3)
+    expect(mpsToBeaufort(15)).toBe(7)
+    expect(formatWindStrengthBeaufort(5)).toBe('3 Bft (5.0 m/s)')
+  })
+
+  it('parses OWM current weather payload', () => {
+    const parsed = parseOwmCurrentWeather({
+      wind: { speed: 8.5, deg: 225 },
+      main: { pressure: 1018, temp: 17.4 },
+      weather: [{ icon: '04d', description: 'Bedeckt' }]
+    })
+    expect(parsed.windDirection).toBe('SW')
+    expect(parsed.windStrength).toBe('5 Bft (8.5 m/s)')
+    expect(parsed.windPressure).toBe('1018')
+    expect(parsed.tempC).toBe('17.4')
+    expect(parsed.precipText).toBe('Bedeckt')
+    expect(parsed.weatherIcon).toBe('04d')
+  })
+})