Add Weather module with controller, service, and DTO for fetching weather details

src/config/index.ts

@@ -1,4 +1,5 @@
 import AuthConfig from './auth.config';
 import AppConfig from './app.config';
 import JwtConfig from './jwt.config';
-export default [AuthConfig, AppConfig, JwtConfig];
+import WeatherOpenConfig from './weather.open.config';
+export default [AuthConfig, AppConfig, JwtConfig, WeatherOpenConfig];

src/config/weather.open.config.ts

@@ -0,0 +1,8 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs(
+  'openweather-config',
+  (): Record<string, any> => ({
+    OPEN_WEATHER_MAP_API_KEY: process.env.OPEN_WEATHER_MAP_API_KEY,
+  }),
+);