Moved the weatherfeeder model out of internal/ so that downstream consumers can import it directly.

model/observation.go

@@ -0,0 +1,55 @@
+// FILE: internal/model/observation.go
+package model
+
+import "time"
+
+type WeatherObservation struct {
+	// Identity / metadata
+	StationID   string    `json:"stationId,omitempty"`
+	StationName string    `json:"stationName,omitempty"`
+	Timestamp   time.Time `json:"timestamp"`
+
+	// Canonical internal representation (provider-independent).
+	ConditionCode WMOCode `json:"conditionCode"`
+	ConditionText string  `json:"conditionText,omitempty"`
+	IsDay         *bool   `json:"isDay,omitempty"`
+
+	// Provider-specific “evidence” for troubleshooting mapping and drift.
+	ProviderRawDescription string `json:"providerRawDescription,omitempty"`
+
+	// Human-facing (legacy / transitional)
+	TextDescription string `json:"textDescription,omitempty"`
+
+	// Provider-specific (legacy / transitional)
+	IconURL string `json:"iconUrl,omitempty"`
+
+	// Core measurements (nullable)
+	TemperatureC *float64 `json:"temperatureC,omitempty"`
+	DewpointC    *float64 `json:"dewpointC,omitempty"`
+
+	WindDirectionDegrees *float64 `json:"windDirectionDegrees,omitempty"`
+	WindSpeedKmh         *float64 `json:"windSpeedKmh,omitempty"`
+	WindGustKmh          *float64 `json:"windGustKmh,omitempty"`
+
+	BarometricPressurePa *float64 `json:"barometricPressurePa,omitempty"`
+	SeaLevelPressurePa   *float64 `json:"seaLevelPressurePa,omitempty"`
+	VisibilityMeters     *float64 `json:"visibilityMeters,omitempty"`
+
+	RelativeHumidityPercent *float64 `json:"relativeHumidityPercent,omitempty"`
+	ApparentTemperatureC    *float64 `json:"apparentTemperatureC,omitempty"`
+
+	ElevationMeters *float64 `json:"elevationMeters,omitempty"`
+	RawMessage      string   `json:"rawMessage,omitempty"`
+
+	PresentWeather []PresentWeather `json:"presentWeather,omitempty"`
+	CloudLayers    []CloudLayer     `json:"cloudLayers,omitempty"`
+}
+
+type CloudLayer struct {
+	BaseMeters *float64 `json:"baseMeters,omitempty"`
+	Amount     string   `json:"amount,omitempty"`
+}
+
+type PresentWeather struct {
+	Raw map[string]any `json:"raw,omitempty"`
+}