repository와 subscribe까지 잘 됨

internal/app/flow/weather.go

@@ -0,0 +1,11 @@
+package flow
+
+import "time"
+
+type Weather struct {
+	Source       string
+	TargetDate   time.Time
+	ForecastDate time.Time
+	Condition    string
+	Temperature  float64 // Celsius
+}