test(new): 新增 NewTest 工程；两个回归脚本支持 --escape/--only 单独跑

NewTest：M2.4 new 描述符冒烟（stack→alloca、heap→malloc；memgr 段待确认管理器 API，非法组合以注释列出）。

regression_test.py / SequentialRegressionTest.py 新增 --escape（只跑生命期/逃逸 + new 相关项目）与 --only（逗号分隔指定项目）；两者都会在 Test/<名> 与仓库根 <名> 查找 project.json / project.vpj，故根级 Escape* 项目也能直接跑；--escape 忽略 README 难度顺序。

README.md：新增「一·附 生命期/逃逸相关测试」一节，列出 5 个项目的期望结果与单独运行命令。

NewTest/project.json

@@ -0,0 +1,29 @@
+{
+    "$schema": "https://raw.githubusercontent.com/TermiNexus/TransPyC/main/schemas/project-schema.json",
+    "name": "NewTest",
+    "version": "1.0.0",
+    "source_dir": "./App",
+    "build_dir": "./.tpv_build",
+    "compiler": {
+        "cmd": "llc",
+        "flags": ["-filetype=obj", "-relocation-model=pic"]
+    },
+    "linker": {
+        "cmd": "clang++",
+        "flags": ["-lmsvcrt", "-lucrt", "-lpthread", "-lmingwex", "-lkernel32"],
+        "output": "NewTest.exe"
+    },
+    "includes": [
+        "../../includes"
+    ],
+    "target": {
+        "triple": "x86_64-pc-windows-gnu",
+        "datalayout": "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+    },
+    "options": {
+        "slice_level": 3,
+        "sha1_slice_level": 1,
+        "target": "llvm",
+        "strict_mode": true
+    }
+}