Refactored the application structure to better separate concerns between files and packages

internal/adapters/outbound/postgres/forecast_queries.go

@@ -0,0 +1,54 @@
+// forecast_queries.go contains SQL text for hourly forecast reads.
+// Layer: adapters/outbound/postgres forecast feature.
+package postgres
+
+const (
+	queryLatestHourlyForecast = `
+SELECT
+  event_id,
+  location_id,
+  location_name,
+  issued_at,
+  updated_at,
+  product,
+  latitude,
+  longitude,
+  elevation_meters
+FROM forecasts
+WHERE product = 'hourly'
+ORDER BY issued_at DESC, event_emitted_at DESC
+LIMIT 1`
+
+	queryForecastPeriods = `
+SELECT
+  period_index,
+  start_time,
+  end_time,
+  name,
+  is_day,
+  condition_code,
+  condition_text,
+  provider_raw_description,
+  text_description,
+  detailed_text,
+  icon_url,
+  temperature_c,
+  temperature_c_min,
+  temperature_c_max,
+  dewpoint_c,
+  relative_humidity_percent,
+  wind_direction_degrees,
+  wind_speed_kmh,
+  wind_gust_kmh,
+  barometric_pressure_pa,
+  visibility_meters,
+  apparent_temperature_c,
+  cloud_cover_percent,
+  probability_of_precipitation_percent,
+  precipitation_amount_mm,
+  snowfall_depth_mm,
+  uv_index
+FROM forecast_periods
+WHERE run_event_id = $1
+ORDER BY period_index ASC`
+)