selfhost(pyvm): MiniVmPrints – prefer JSON route early-return (ok==1) to avoid fallback loops; keep default behavior unchanged elsewhere

apps/selfhost/compiler/boxes/debug_box.nyash

@@ -0,0 +1,38 @@
+// DebugBox — conditional debug output aggregator (extracted)
+box DebugBox {
+  enabled
+  birth() {
+    me.enabled = 0
+    return 0
+  }
+  set_enabled(v) {
+    me.enabled = v
+    return 0
+  }
+  log(msg) {
+    if me.enabled {
+      local c = new ConsoleBox()
+      c.println("[DEBUG] " + msg)
+    }
+    return 0
+  }
+  info(msg) {
+    if me.enabled {
+      local c = new ConsoleBox()
+      c.println("[INFO] " + msg)
+    }
+    return 0
+  }
+  error(msg) {
+    if me.enabled {
+      local c = new ConsoleBox()
+      c.println("[ERROR] " + msg)
+    }
+    return 0
+  }
+}
+
+// Include stub to satisfy current include lowering (expects a static box)
+static box DebugStub {
+  main(args) { return 0 }
+}