🐛 fix: support LSP request id variants

lsp-server/test/test_lsp_any/facade_test.cppm

@@ -403,7 +403,7 @@ namespace lsp::test
         TestResult result;
         result.passed = true;
 
-        std::variant<int, std::string> id = 123;
+        protocol::RequestId id = static_cast<protocol::integer>(123);
         std::string id_str = transform::debug::GetIdString(id);
         assertEqual(std::string("123"), id_str, "int id应该转换为'123'");
 
@@ -416,7 +416,7 @@ namespace lsp::test
         TestResult result;
         result.passed = true;
 
-        std::variant<int, std::string> id = std::string("abc-123-def");
+        protocol::RequestId id = std::string("abc-123-def");
         std::string id_str = transform::debug::GetIdString(id);
         assertEqual(std::string("abc-123-def"), id_str, "string id应该保持为'abc-123-def'");