feat(lifetime): 构造器路径同命裁剪的透传管道（recv_life，默认 -1 = 现状不变）

_call_method_on_ptr 新增 recv_life: int = -1（被构造对象的生命期，由调用方 CallGenCtor 算出）；
构造器分支在指令最终裁决之后，若 recv_life ∈ {FRAME, VALUE} 则复用 _FrameArgsEscapeClearsMethod
（recv_node=None，接收者已由 recv_life 判定）清"写进形参对象字段"那类位。
下一轮只需在 3 个 __init__ 调用点（CallGenCtor:171/665、ExprGenConst:257）填 recv_life；未填 = 完全现状。

App/lib/core/Gen/Call/CallGenCall.vp

@@ -141,7 +141,7 @@ novirtual class CallGenCall(CallGenBase.CallGenBase):
     # first argument (goes through virtual dispatch if the method is in the vtable).
 
     # ============================================================
-    def _call_method_on_ptr(self, pool: memhub.MemBuddy*, builder: mlirlite.IRBuilder*, mod: mlirlite.LLVMModule*, class_name: str, method_name: str, self_ptr: mlirlite.Value*, extra_args: sizet*, extra_count: int, trans: HT.Translator*, node: ast.AST* = None, is_volatile: int = 0, arg_nodes: list[ast.AST*]* = None) -> mlirlite.Value*:
+    def _call_method_on_ptr(self, pool: memhub.MemBuddy*, builder: mlirlite.IRBuilder*, mod: mlirlite.LLVMModule*, class_name: str, method_name: str, self_ptr: mlirlite.Value*, extra_args: sizet*, extra_count: int, trans: HT.Translator*, node: ast.AST* = None, is_volatile: int = 0, arg_nodes: list[ast.AST*]* = None, recv_life: int = -1) -> mlirlite.Value*:
         """Call a method on a struct pointer; adds a volatile barrier for constructors."""
         if pool is None or builder is None or class_name is None or method_name is None: return None
         if self_ptr is None: return None
@@ -165,7 +165,19 @@ novirtual class CallGenCall(CallGenBase.CallGenBase):
                 # 跨模块：本文件指令表为空，改查对方模块 .vpi 的 esce=/escn=
                 f_ci = self.Gen.CallGenBase.lookup_escape_dir_via_vpi(sha_ci, class_name, method_name, 0)
                 n_ci = self.Gen.CallGenBase.lookup_escape_dir_via_vpi(sha_ci, class_name, method_name, 1)
-            if f_ci != 0 or n_ci != 0: esc_mask_ci = (esc_mask_ci | f_ci) & (~n_ci)
+            if f_ci != 0 or n_ci != 0: esc_mask_ci = (esc_mask_ci | f_ci) & (~n_ci)
+            # 同命裁剪（构造器路径）：被构造对象的生命期由**调用方**（CallGenCtor）算出并经
+            # recv_life 传入 —— 这里只有 self_ptr（LLVM 值），拿不到 AST/生命期。
+            # recv_life == -1 = 未知 → **不做裁剪**（与接这条之前的行为完全一致）。
+            # 对象在本帧（裸 `T()` / `new stack` / `slife`）时，其余实参也都在本帧即可清位。
+            if recv_life >= 0 and esc_mask_ci != 0:
+                if recv_life == GenTypes.LIFE_FRAME or recv_life == GenTypes.LIFE_VALUE:
+                    hard_ci: int = GenApi.get_param_escapes_hard_method(pool, class_name, method_name)
+                    fld_ci: int = esc_mask_ci & (~hard_ci)
+                    if fld_ci != 0:
+                        can_ci2: sizet = len(arg_nodes)
+                        cl_ci: int = self.Gen.CallGen._FrameArgsEscapeClearsMethod(trans, None, arg_nodes, can_ci2, fld_ci)
+                        if cl_ci != 0: esc_mask_ci = esc_mask_ci & (~cl_ci)
             if esc_mask_ci != 0:
                 dummy_ptr_ci: mlirlite.LLVMType* = mlirlite.Ptr(pool, mlirlite.Int8(pool))
                 can_ci: sizet = len(arg_nodes)