Simplified the forecast schema

API.md

@@ -143,11 +143,7 @@ A `WeatherForecastPeriod` is valid for `[startTime, endTime)`.
 | `name` | string | no | Human label (often empty for hourly) |
 | `isDay` | bool | no | Day/night hint |
 | `conditionCode` | int | yes | WMO code (`-1` for unknown) |
-| `conditionText` | string | no | Canonical short text |
-| `providerRawDescription` | string | no | Provider-specific “evidence” text |
 | `textDescription` | string | no | Human-facing short phrase |
-| `detailedText` | string | no | Longer narrative |
-| `iconUrl` | string | no | Legacy/transitional |
 | `temperatureC` | number | no | °C |
 | `temperatureCMin` | number | no | °C (aggregated products) |
 | `temperatureCMax` | number | no | °C (aggregated products) |
@@ -269,7 +265,7 @@ A run may contain zero, one, or many alerts.
         "startTime": "2026-01-17T14:00:00Z",
         "endTime": "2026-01-17T15:00:00Z",
         "conditionCode": 2,
-        "conditionText": "Partly Cloudy",
+        "textDescription": "Partly Cloudy",
         "temperatureC": 3.5,
         "probabilityOfPrecipitationPercent": 10
       }