feat: add wind speed and a same-day hive-inspection verdict to weather

Temperature and rain were already tracked, but wind matters just as
much for whether it's safe/sensible to open a hive - bees get more
defensive and frames are harder to handle in wind. Adds
wind_speed_10m_max to the Open-Meteo request and a derived
inspectionSuitable flag per day (>=15C, <=1mm rain, <=25km/h wind;
null when a value is missing rather than guessing). The apiary weather
card now shows a clear "good/not good for a Durchsicht today" banner
plus wind alongside each day's forecast.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

ApiCore-Backend/src/weather/weather.service.spec.ts

@@ -8,6 +8,7 @@ function openMeteoResponse(
     tempMax: number | null;
     tempMin: number | null;
     precipitation: number | null;
+    wind?: number | null;
   }[],
 ): unknown {
   return {
@@ -16,6 +17,7 @@ function openMeteoResponse(
       temperature_2m_max: days.map((day) => day.tempMax),
       temperature_2m_min: days.map((day) => day.tempMin),
       precipitation_sum: days.map((day) => day.precipitation),
+      wind_speed_10m_max: days.map((day) => day.wind ?? 10),
     },
   };
 }
@@ -83,13 +85,68 @@ describe('WeatherService', () => {
       const result = await weatherService.getWeather('apiary-1');
 
       expect(result.daily).toEqual([
-        { date: '2026-06-01', tempMaxC: 22, tempMinC: 12, precipitationMm: 0 },
+        {
+          date: '2026-06-01',
+          tempMaxC: 22,
+          tempMinC: 12,
+          precipitationMm: 0,
+          windSpeedMaxKmh: 10,
+          inspectionSuitable: true,
+        },
       ]);
       const [url] = fetchMock.mock.calls[0] as [URL];
       expect(url.toString()).toContain('latitude=52.5');
       expect(url.toString()).toContain('longitude=13.4');
     });
 
+    it.each([
+      ['too cold', { tempMax: 10, tempMin: 4, precipitation: 0, wind: 5 }],
+      ['raining', { tempMax: 20, tempMin: 12, precipitation: 3, wind: 5 }],
+      ['too windy', { tempMax: 20, tempMin: 12, precipitation: 0, wind: 40 }],
+    ])('marks a day unsuitable for inspection when %s', async (_label, day) => {
+      prisma.apiary.findUnique.mockResolvedValue({
+        latitude: 52.5,
+        longitude: 13.4,
+      });
+      fetchMock.mockResolvedValue(
+        new Response(
+          JSON.stringify(openMeteoResponse([{ date: '2026-06-01', ...day }])),
+          { status: 200 },
+        ),
+      );
+
+      const result = await weatherService.getWeather('apiary-1');
+
+      expect(result.daily[0].inspectionSuitable).toBe(false);
+    });
+
+    it('leaves inspectionSuitable null when a required value is missing', async () => {
+      prisma.apiary.findUnique.mockResolvedValue({
+        latitude: 52.5,
+        longitude: 13.4,
+      });
+      fetchMock.mockResolvedValue(
+        new Response(
+          JSON.stringify(
+            openMeteoResponse([
+              {
+                date: '2026-06-01',
+                tempMax: null,
+                tempMin: null,
+                precipitation: 0,
+                wind: 5,
+              },
+            ]),
+          ),
+          { status: 200 },
+        ),
+      );
+
+      const result = await weatherService.getWeather('apiary-1');
+
+      expect(result.daily[0].inspectionSuitable).toBeNull();
+    });
+
     it('throws BadRequestException when Open-Meteo responds with an error status', async () => {
       prisma.apiary.findUnique.mockResolvedValue({
         latitude: 52.5,