feat(lifetime): 构造器路径填 recv_life——裸 T() 构造（入口块 alloca）算 FRAME

_translate_struct_ctor 两份副本都算 recv_life_ct：_g_new_storage == None（无 new 描述符提供存储）→
裸 T() 的存储是入口块 alloca → LIFE_FRAME（参与构造器同命裁剪）；非空（存储来自 new …）→ -1 不裁剪。
两处 __init__ 调用点（:171 / :675）均传入。覆盖 CtorHolder(&l) / BoxCtor(&l) 这类裸构造误报。

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

@@ -82,6 +82,11 @@ novirtual class CallGenCtor(CallGenBase.CallGenBase):
         tmp: mlirlite.Value* = _g_new_storage
         if tmp is None: tmp = self.Gen.VarGen._alloca_at_entry(builder, struct_ty)
         if tmp is None: return mlirlite.ConstZero(pool, struct_ty)
+        # 构造器同命裁剪用：被构造对象的生命期。
+        #   裸 `T()`（没有 `new` 描述符提供存储）= 入口块 alloca → **FRAME**；
+        #   存储来自 `new …`（_g_new_storage 非空）时来源/生命期由**上游**决定，这里不猜 → -1（不裁剪）。
+        recv_life_ct: int = -1
+        if _g_new_storage is None: recv_life_ct = GenTypes.LIFE_FRAME
         # Diagnostic node: the first ctor arg (has a line number) so _call_method_on_ptr's
         # fatal_error can show the call line (this function has no cl param).
         diag_node_ct: ast.AST* = None
@@ -168,7 +173,7 @@ novirtual class CallGenCtor(CallGenBase.CallGenBase):
                             arg_vals[real_arg_count] = sizet(av)
                             real_arg_count += 1
 
-                self.Gen.CallGenCall._call_method_on_ptr(pool, builder, mod, class_name, "__init__", storage_ptr, arg_vals, real_arg_count, trans, diag_node_ct, is_volatile, cargs)
+                self.Gen.CallGenCall._call_method_on_ptr(pool, builder, mod, class_name, "__init__", storage_ptr, arg_vals, real_arg_count, trans, diag_node_ct, is_volatile, cargs, recv_life_ct)
             elif has_new_flag == 0:
                 # No __init__ and no __new__: store args field by field
                 # (with __new__, args were already consumed and must not be stored).
@@ -548,6 +553,11 @@ novirtual class CallGenCtor(CallGenBase.CallGenBase):
         tmp: mlirlite.Value* = _g_new_storage
         if tmp is None: tmp = self.Gen.VarGen._alloca_at_entry(builder, struct_ty)
         if tmp is None: return mlirlite.ConstZero(pool, struct_ty)
+        # 构造器同命裁剪用：被构造对象的生命期。
+        #   裸 `T()`（没有 `new` 描述符提供存储）= 入口块 alloca → **FRAME**；
+        #   存储来自 `new …`（_g_new_storage 非空）时来源/生命期由**上游**决定，这里不猜 → -1（不裁剪）。
+        recv_life_ct: int = -1
+        if _g_new_storage is None: recv_life_ct = GenTypes.LIFE_FRAME
         # Diagnostic node: the first ctor arg (has a line number) so _call_method_on_ptr's
         # fatal_error can show the call line (this function has no cl param).
         diag_node_ct: ast.AST* = None
@@ -662,7 +672,7 @@ novirtual class CallGenCtor(CallGenBase.CallGenBase):
                         init_arg_count += 1
 
             # call __init__(storage_ptr, *args)
-            self.Gen.CallGenCall._call_method_on_ptr(pool, builder, mod, class_name, "__init__", storage_ptr, init_arg_vals, init_arg_count, trans, diag_node_ct, is_volatile, cargs)
+            self.Gen.CallGenCall._call_method_on_ptr(pool, builder, mod, class_name, "__init__", storage_ptr, init_arg_vals, init_arg_count, trans, diag_node_ct, is_volatile, cargs, recv_life_ct)
 
             # return the pointer
             return storage_ptr