Added documentation to kcgi opcodes as Doxygen compatible comments. No code changes. (0.41.10)

src/vm/kcgi/end.c

@@ -1,3 +1,26 @@
+/*
+ * 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
+ */
+
+/**
+ * @file end.c
+ * @brief VM opcode snippet to finalize kcgi handling and release state.
+ *
+ * This snippet is included by vm.c and implements the OP_KCGI_END
+ * instruction. When FUN_WITH_KCGI is enabled, it releases any currently
+ * stored request (g_kcgi_req) and pushes 1, indicating success. When kcgi
+ * support is disabled, it simply pushes 0.
+ *
+ * Stack effect:
+ * - Pops: (none)
+ * - Pushes: int 1 when FUN_WITH_KCGI, otherwise int 0
+ */
+
 /* KCGI_END */
 case OP_KCGI_END: {
 #ifdef FUN_WITH_KCGI