feat: implement initial virtual machine runtime with stack operations and basic instruction execution, and define compiler parsing infrastructure.

Author: ProgrammerKR

include/compiler.h

@@ -11,7 +11,7 @@
 #include "vm.h"
 
 
-#include "parser.h"
+typedef struct Parser Parser;
 
 typedef enum {
   PREC_NONE,

src/runtime/vm.c

@@ -10,7 +10,7 @@
 #include "debug.h"
 #include "vm.h"
 
-static void freeObjects(VM* vm);
+void freeObjects();
 
 void initVM(VM *vm) { vm->stackTop = vm->stack; }