Implemented NWS weather stories support

internal/sinks/postgres/map.go

@@ -22,6 +22,8 @@ func mapPostgresEvent(_ context.Context, e fkevent.Event) ([]fksinks.PostgresWri
 		return mapForecastEvent(e)
 	case standards.SchemaWeatherForecastDiscussionV1:
 		return mapForecastDiscussionEvent(e)
+	case standards.SchemaWeatherStoryV1:
+		return mapWeatherStoryEvent(e)
 	case standards.SchemaWeatherAlertV1:
 		return mapAlertEvent(e)
 	default:
@@ -218,6 +220,59 @@ func mapForecastDiscussionEvent(e fkevent.Event) ([]fksinks.PostgresWrite, error
 	return writes, nil
 }
 
+func mapWeatherStoryEvent(e fkevent.Event) ([]fksinks.PostgresWrite, error) {
+	run, err := decodePayload[model.WeatherStoryRun](e.Payload)
+	if err != nil {
+		return nil, fmt.Errorf("decode weather story payload: %w", err)
+	}
+	if run.AsOf.IsZero() {
+		return nil, fmt.Errorf("decode weather story payload: asOf is required")
+	}
+
+	asOf := run.AsOf.UTC()
+	writes := make([]fksinks.PostgresWrite, 0, 1+len(run.Stories))
+	writes = append(writes, fksinks.PostgresWrite{
+		Table: tableWeatherStoryRuns,
+		Values: map[string]any{
+			"event_id":           e.ID,
+			"event_kind":         string(e.Kind),
+			"event_source":       e.Source,
+			"event_schema":       e.Schema,
+			"event_emitted_at":   e.EmittedAt.UTC(),
+			"event_effective_at": nullableTime(e.EffectiveAt),
+			"office_id":          nullableString(run.OfficeID),
+			"as_of":              asOf,
+			"story_count":        len(run.Stories),
+		},
+	})
+
+	for i, story := range run.Stories {
+		if story.StartTime.IsZero() || story.EndTime.IsZero() || story.UpdatedAt.IsZero() {
+			return nil, fmt.Errorf("decode weather story payload: stories[%d] startTime/endTime/updatedAt are required", i)
+		}
+		writes = append(writes, fksinks.PostgresWrite{
+			Table: tableWeatherStories,
+			Values: map[string]any{
+				"run_event_id": e.ID,
+				"story_index":  i,
+				"as_of":        asOf,
+				"office_id":    nullableString(story.OfficeID),
+				"start_time":   story.StartTime.UTC(),
+				"end_time":     story.EndTime.UTC(),
+				"updated_at":   story.UpdatedAt.UTC(),
+				"title":        nullableString(story.Title),
+				"description":  nullableString(story.Description),
+				"alt_text":     nullableString(story.AltText),
+				"priority":     story.Priority,
+				"story_order":  story.Order,
+				"download_url": nullableString(story.DownloadURL),
+			},
+		})
+	}
+
+	return writes, nil
+}
+
 func mapAlertEvent(e fkevent.Event) ([]fksinks.PostgresWrite, error) {
 	run, err := decodePayload[model.WeatherAlertRun](e.Payload)
 	if err != nil {