Add the yaak.run playground API (#681)

Cargo.lock

@@ -11600,6 +11600,23 @@ dependencies = [
  "yaak-templates",
 ]
 
+[[package]]
+name = "yaak-playground"
+version = "0.1.0"
+dependencies = [
+ "axum",
+ "bytes",
+ "clap",
+ "env_logger",
+ "log 0.4.34",
+ "serde",
+ "serde_json",
+ "tokio",
+ "tower",
+ "tower-http",
+ "uuid",
+]
+
 [[package]]
 name = "yaak-plugins"
 version = "0.1.0"