Added fun_version and env_all as opcodes and some fixes in httpserver. (0.37.30)

src/vm/os/fun_version.c

@@ -0,0 +1,20 @@
+/**
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2025 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ * 
+ * Added: 2025-12-28
+ */
+
+// Pushes the current Fun version string onto the stack.
+
+case OP_FUN_VERSION: {
+#ifndef FUN_VERSION
+#define FUN_VERSION "0.0.0-dev"
+#endif
+    push_value(vm, make_string(FUN_VERSION));
+    break;
+}