Add single statement prepared query

Uses forked sqlc with sqlc-dev/sqlc#3136

Author: darkfeline

internal/fileid/pattern.go

@@ -58,8 +58,8 @@ func RefreshFiles(db *sql.DB, files []string) error {
 	}
 	l.Info("start inserting files")
 	ctx := context.Background()
-	q, err := sqlc.Prepare(ctx, db)
-	if err != nil {
+	q := sqlc.New(db)
+	if err := q.PrepareInsertEpisodeFile(ctx); err != nil {
 		return fmt.Errorf("refresh files: %w", err)
 	}
 	defer q.Close()

internal/query/episodefile.go

@@ -29,6 +29,8 @@ type EpisodeFile struct {
 }
 
 // InsertEpisodeFile inserts episode files into the database.
+// The caller should pre-emptively prepare
+// [sqlc.Queries.PrepareInsertEpisodeFile] for performance.
 func InsertEpisodeFiles(ctx context.Context, q *sqlc.Queries, l *slog.Logger, efs []EpisodeFile) error {
 	for _, ef := range efs {
 		p := sqlc.InsertEpisodeFileParams{