fix(handles): HandlesExprCall 补回 set_global_gen 与 12 个顶层常量

拆分脚本 del 逻辑未过滤分组，误删了保留的 set_global_gen 与
顶层常量（_CEXPORT_MAX/ASM_*/LLVMIR_*/MAX_*/GLOBAL_*）→ 链接报
undefined symbol: {sha1}.set_global_gen。已补回，全 App 语法验证通过。

App/lib/core/Handles/HandlesExprCall.vp

@@ -33,6 +33,29 @@ import lib.core.Handles.ExprCallCall as ExprCallCall
 _g_gen: t.CVoid | t.CPtr = None
 
 
+def set_global_gen(gen: t.CVoid | t.CPtr) -> None:
+    """注入全局 gen 单例（BuildPipeline/main 调用）"""
+    global _g_gen
+    _g_gen = gen
+
+
+# ============================================================
+# 本地常量（阶段 E 拆分时随函数块误删，补回；子模块经 HandlesExprCall.常量 引用）
+# ============================================================
+_CEXPORT_MAX: t.CDefine = 256
+ASM_MAX_OPERANDS: t.CDefine = 16
+ASM_TEXT_BUF_SIZE: t.CDefine = 2048
+ASM_CONST_BUF_SIZE: t.CDefine = 512
+ASM_ARGS_BUF_SIZE: t.CDefine = 512
+ASM_LINE_BUF_SIZE: t.CDefine = 4096
+LLVMIR_MAX_OPS: t.CDefine = 16
+LLVMIR_TEMPLATE_BUF: t.CDefine = 512
+MAX_CLOSURE_NAMES: t.CDefine = 128
+MAX_FUNC_PTR_SIGS: t.CDefine = 64
+GLOBAL_FUNC_MAX: t.CDefine = 8192
+GLOBAL_DEFAULTS_MAX: t.CDefine = 4096
+
+