feat: rename profiler to performance, typeless event emitter

internal/executer/executer.go

@@ -11,7 +11,7 @@ import (
 
 type Executor struct {
 	Config *config.Config
-	emitter.Emitter[*lambda.Expression]
+	emitter.Emitter
 }
 
 func New(config *config.Config) *Executor {
@@ -19,14 +19,14 @@ func New(config *config.Config) *Executor {
 }
 
 func (e Executor) Run(expr *lambda.Expression) {
-	e.Emit("start", expr)
+	e.Emit("start")
 
 	if e.Config.Explanation {
 		fmt.Println(lambda.Stringify(*expr))
 	}
 
 	for lambda.ReduceOnce(expr) {
-		e.Emit("step", expr)
+		e.Emit("step")
 		if e.Config.Verbose {
 			slog.Info("reduction", "tree", lambda.Stringify(*expr))
 		}
@@ -35,5 +35,5 @@ func (e Executor) Run(expr *lambda.Expression) {
 		}
 	}
 
-	e.Emit("end", expr)
+	e.Emit("end")
 }