feat: geo-device-service, Weather по геопозиции, Discover вкладка GooSeek

Geo Device Service:
- Новый сервис определения геопозиции, устройства, браузера
- geoip-lite, ua-parser-js, CORS
- GET/POST /api/context

Frontend:
- /api/geo-context — прокси к geo-device, fallback при недоступности
- geoDevice.ts — fetchContextWithClient, fetchContextWithGeolocation
- Weather: геопозиция через geo-device + GeoJS + ipwhois fallback
- Weather API: поддержка city (геокодинг Open-Meteo)
- Discover: вкладка GooSeek по умолчанию

Документация:
- MICROSERVICES.md — секция 3.9 Geo Device Service

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

apps/frontend/src/app/api/weather/route.ts

@@ -1,22 +1,50 @@
+const geocodeCity = async (city: string): Promise<{ lat: number; lng: number; name: string } | null> => {
+  const res = await fetch(
+    `https://geocoding-api.open-meteo.com/v1/search?name=${encodeURIComponent(city)}&count=1`,
+  );
+  const data = await res.json();
+  const result = data.results?.[0];
+  if (!result?.latitude || !result?.longitude) return null;
+  return {
+    lat: result.latitude,
+    lng: result.longitude,
+    name: result.name ?? city,
+  };
+};
+
 export const POST = async (req: Request) => {
   try {
     const body: {
-      lat: number;
-      lng: number;
+      lat?: number;
+      lng?: number;
+      city?: string;
       measureUnit: 'Imperial' | 'Metric';
     } = await req.json();
 
-    if (!body.lat || !body.lng) {
+    let lat: number;
+    let lng: number;
+    let cityName: string | undefined = body.city;
+
+    if (body.lat != null && body.lng != null) {
+      lat = body.lat;
+      lng = body.lng;
+    } else if (body.city?.trim()) {
+      const geo = await geocodeCity(body.city.trim());
+      if (!geo) {
+        return Response.json({ message: 'City not found.' }, { status: 404 });
+      }
+      lat = geo.lat;
+      lng = geo.lng;
+      cityName = geo.name;
+    } else {
       return Response.json(
-        {
-          message: 'Invalid request.',
-        },
+        { message: 'Invalid request. Provide lat/lng or city.' },
         { status: 400 },
       );
     }
 
     const res = await fetch(
-      `https://api.open-meteo.com/v1/forecast?latitude=${body.lat}&longitude=${body.lng}&current=weather_code,temperature_2m,is_day,relative_humidity_2m,wind_speed_10m&timezone=auto${
+      `https://api.open-meteo.com/v1/forecast?latitude=${lat}&longitude=${lng}&current=weather_code,temperature_2m,is_day,relative_humidity_2m,wind_speed_10m&timezone=auto${
         body.measureUnit === 'Metric' ? '' : '&temperature_unit=fahrenheit'
       }${body.measureUnit === 'Metric' ? '' : '&wind_speed_unit=mph'}`,
     );
@@ -159,7 +187,7 @@ export const POST = async (req: Request) => {
         break;
     }
 
-    return Response.json(weather);
+    return Response.json({ ...weather, city: cityName });
   } catch (err) {
     console.error('An error occurred while getting home widgets', err);
     return Response.json(