refactor: 动态编译改经 CompilerService 注入，oxide_vm 去编译器依赖

crates/oxide_vm/tests/arithmetic_tests.rs

@@ -1,6 +1,7 @@
 use std::sync::Arc;
 
 use oxide_compiler::compiler::Compiler;
+use oxide_compiler::DefaultCompilerService;
 use oxide_parser::Allocator;
 use oxide_vm::vm::Vm;
 
@@ -15,6 +16,7 @@ fn eval(source: &str) -> String {
         Err(e) => return format!("compile error: {e}"),
     };
     let mut vm = Vm::new();
+    vm.set_compiler_service(Arc::new(DefaultCompilerService));
     match vm.run(&Arc::new(module)) {
         Ok(result) => format!("{result}"),
         Err(e) => format!("vm error: {e}"),
@@ -27,6 +29,7 @@ fn eval_str(source: &str) -> String {
     let program = oxide_parser::parse(&allocator, source).expect("parse ok");
     let module = Compiler::new().compile(&program).expect("compile ok");
     let mut vm = Vm::new();
+    vm.set_compiler_service(Arc::new(DefaultCompilerService));
     let val = vm.run(&Arc::new(module)).expect("run ok");
     if val.is_string() {
         vm.lookup_str(val).unwrap_or_default()