feature: add hourly forecast, precipitation, and icon hints to weather extractor

Add HourlyForecast struct and Hourly field to WeatherData for hourly
temperature/condition data. Add Precipitation (int, -1 if unavailable)
and IconHint (from aria-label/title/alt attributes) to both DayForecast
and HourlyForecast. This enables downstream consumers like mort to
replace inline DuckDuckGo scraping with a single GetWeather() call.

Closes #51

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sites/duckduckgo/weather.go

@@ -20,14 +20,26 @@ type WeatherData struct {
 	Humidity    string
 	Wind        string
 	Forecast    []DayForecast
+	Hourly      []HourlyForecast
 }
 
 // DayForecast holds a single day's forecast.
 type DayForecast struct {
-	Day      string
-	HighTemp float64
-	LowTemp  float64
-	Condition string
+	Day           string
+	HighTemp      float64
+	LowTemp       float64
+	Condition     string
+	Precipitation int    // percentage 0-100, -1 if unavailable
+	IconHint      string // icon type from element attributes (e.g. "PartlyCloudy", "Snow")
+}
+
+// HourlyForecast holds a single hour's forecast.
+type HourlyForecast struct {
+	Time          string
+	Temp          float64
+	Condition     string
+	Precipitation int    // percentage 0-100, -1 if unavailable
+	IconHint      string // icon type from element attributes (e.g. "MostlyCloudy", "Rain")
 }
 
 // GetWeather extracts weather data from DuckDuckGo's weather widget.
@@ -106,6 +118,7 @@ func extractWeather(doc extractor.Node) (*WeatherData, error) {
 	// Daily forecast
 	_ = doc.ForEach("div.module--weather .module__forecast-day", func(n extractor.Node) error {
 		var day DayForecast
+		day.Precipitation = -1
 
 		days := n.Select(".forecast-day__name")
 		if len(days) > 0 {
@@ -129,9 +142,65 @@ func extractWeather(doc extractor.Node) (*WeatherData, error) {
 			day.Condition, _ = dayConds[0].Text()
 		}
 
+		precips := n.Select(".forecast-day__precip")
+		if len(precips) > 0 {
+			txt, _ := precips[0].Text()
+			day.Precipitation = int(parse.NumericOnly(txt))
+		}
+
+		day.IconHint = extractIconHint(n.Select(".forecast-day__icon"))
+
 		data.Forecast = append(data.Forecast, day)
 		return nil
 	})
 
+	// Hourly forecast
+	_ = doc.ForEach("div.module--weather .module__hourly-item", func(n extractor.Node) error {
+		var hour HourlyForecast
+		hour.Precipitation = -1
+
+		times := n.Select(".hourly-item__time")
+		if len(times) > 0 {
+			hour.Time, _ = times[0].Text()
+		}
+
+		temps := n.Select(".hourly-item__temp")
+		if len(temps) > 0 {
+			txt, _ := temps[0].Text()
+			hour.Temp = parse.NumericOnly(txt)
+		}
+
+		conds := n.Select(".hourly-item__condition")
+		if len(conds) > 0 {
+			hour.Condition, _ = conds[0].Text()
+		}
+
+		precips := n.Select(".hourly-item__precip")
+		if len(precips) > 0 {
+			txt, _ := precips[0].Text()
+			hour.Precipitation = int(parse.NumericOnly(txt))
+		}
+
+		hour.IconHint = extractIconHint(n.Select(".hourly-item__icon"))
+
+		data.Hourly = append(data.Hourly, hour)
+		return nil
+	})
+
 	return &data, nil
 }
+
+// extractIconHint reads the icon type from an element's aria-label, title, or alt attribute.
+func extractIconHint(nodes extractor.Nodes) string {
+	if len(nodes) == 0 {
+		return ""
+	}
+	n := nodes[0]
+	for _, attr := range []string{"aria-label", "title", "alt"} {
+		v, _ := n.Attr(attr)
+		if v != "" {
+			return v
+		}
+	}
+	return ""
+}