fix: convert response body to proper types before casting

Ensure Bytes, HTML, and Text response bodies are properly converted to their respective types (to_bytes() or to_string()) before casting to JS values to prevent potential type errors.

Author: oboard

moon.mod.json

@@ -1,6 +1,6 @@
 {
   "name": "oboard/mocket",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "deps": {
     "yj-qin/regexp": "0.3.6",
     "illusory0x0/native": "0.2.1",

src/mocket.js.mbt

@@ -135,9 +135,9 @@ pub fn serve_ffi(mocket : Mocket, port~ : Int) -> Unit {
         )
         res.end(
           match body {
-            Bytes(b) => @js.Value::cast_from(b)
-            HTML(s) => @js.Value::cast_from(s)
-            Text(s) => @js.Value::cast_from(s)
+            Bytes(b) => @js.Value::cast_from(b.to_bytes())
+            HTML(s) => @js.Value::cast_from(s.to_string())
+            Text(s) => @js.Value::cast_from(s.to_string())
             Json(j) => @js.Value::cast_from(j.stringify())
             Empty => @js.Value::cast_from("")
           },