feat: migrate watchlist module to modular domain pattern

internal/domain/watchlist.go

@@ -0,0 +1,26 @@
+package domain
+
+import (
+	"context"
+	"mal/internal/db"
+)
+
+type WatchlistEntry = db.WatchListEntry
+type UserWatchListRow = db.GetUserWatchListRow
+
+type WatchlistService interface {
+	UpdateEntry(ctx context.Context, userID string, animeID int64, status string) error
+	RemoveEntry(ctx context.Context, userID string, animeID int64) error
+	GetWatchlist(ctx context.Context, userID string) ([]UserWatchListRow, error)
+	DeleteContinueWatching(ctx context.Context, userID string, animeID int64) error
+}
+
+type WatchlistRepository interface {
+	UpsertAnime(ctx context.Context, arg db.UpsertAnimeParams) (db.Anime, error)
+	GetAnime(ctx context.Context, id int64) (db.Anime, error)
+	UpsertWatchListEntry(ctx context.Context, arg db.UpsertWatchListEntryParams) (db.WatchListEntry, error)
+	DeleteWatchListEntry(ctx context.Context, arg db.DeleteWatchListEntryParams) error
+	GetUserWatchList(ctx context.Context, userID string) ([]db.GetUserWatchListRow, error)
+	DeleteContinueWatchingEntry(ctx context.Context, arg db.DeleteContinueWatchingEntryParams) error
+	SaveWatchProgress(ctx context.Context, arg db.SaveWatchProgressParams) error
+}