feat: add season discovery service

internal/anime/discovery.go

@@ -0,0 +1,22 @@
+package anime
+
+import (
+	"context"
+	"mal/integrations/playback/allanime"
+)
+
+type seasonProvider interface {
+	SeasonalShows(context.Context, string, int) ([]allanime.ProviderShow, error)
+}
+
+type SeasonDiscoveryService struct {
+	provider seasonProvider
+}
+
+func NewSeasonDiscoveryService(provider *allanime.AllAnimeProvider) *SeasonDiscoveryService {
+	return newSeasonDiscoveryService(provider)
+}
+
+func newSeasonDiscoveryService(provider seasonProvider) *SeasonDiscoveryService {
+	return &SeasonDiscoveryService{provider: provider}
+}