refactor(handles): BuildPipeline/HandlesAnnAssign 深层短路合并

- BuildPipeline _CollectObjFilesImpl: .obj 判断与容量检查合并短路
- HandlesAnnAssign: 泛型特化 spec_name 提取降层（9→7）
- 行为语义保持不变

App/lib/core/BuildPipeline.vp

@@ -466,17 +466,17 @@ def _CollectObjFilesImpl(base_dir: str, bd_len: t.CSizeT,
                             _mbuddy.free(sub_dir)
                     else:
                         # 检查是否是 .obj 文件
-                        if fname_len > 4:
-                            if fname[fname_len - 4] == '.' and fname[fname_len - 3] == 'o' and fname[fname_len - 2] == 'b' and fname[fname_len - 1] == 'j':
-                                need: t.CSizeT = bd_len + 1 + fname_len + 2
-                                if out_pos + need < out_size:
-                                    if out_pos > 0:
-                                        out_buf[out_pos] = ' '
-                                        out_pos += 1
-                                    viperlib.snprintf(out_buf + out_pos, need, "%s/%s", base_dir, fname)
-                                    out_pos += bd_len + 1 + fname_len
-                                else:
-                                    break
+                        if fname_len > 4 and fname[fname_len - 4] == '.' \
+                                and fname[fname_len - 3] == 'o' and fname[fname_len - 2] == 'b' \
+                                and fname[fname_len - 1] == 'j':
+                            need: t.CSizeT = bd_len + 1 + fname_len + 2
+                            if out_pos + need >= out_size:
+                                break
+                            if out_pos > 0:
+                                out_buf[out_pos] = ' '
+                                out_pos += 1
+                            viperlib.snprintf(out_buf + out_pos, need, "%s/%s", base_dir, fname)
+                            out_pos += bd_len + 1 + fname_len
 
         if w32.win32file.FindNextFileA(handle, find_data) == 0:
             break

App/lib/core/Handles/HandlesAnnAssign.vp

@@ -347,14 +347,15 @@ class AnnAssignHandle(HandlesBase.Mixin):
                         sub_nm: ast.Name | t.CPtr = (ast.Name | t.CPtr)(sub_annot.value)
                         if sub_nm.id is not None:
                             template_cd: ast.ClassDef | t.CPtr = HandlesClassDef._find_generic_template(sub_nm.id)
+                            spec_name_ps: str = None
                             if template_cd is not None:
                                 type_args_ps: list[str] | t.CPtr = HandlesExprCall._extract_type_args_from_slice(pool, sub_annot.slice)
                                 if type_args_ps is not None and len(type_args_ps) > 0:
-                                    spec_name_ps: str = HandlesClassDef._specialize_generic_class(
+                                    spec_name_ps = HandlesClassDef._specialize_generic_class(
                                         self.Trans, sub_nm.id, type_args_ps)
-                                    if spec_name_ps is not None:
-                                        resolved = HandlesType.resolve_annotation_type(
-                                            pool, annot, self.Trans._imported_modules, self.Trans._from_imports, self.Trans)
+                            if spec_name_ps is not None:
+                                resolved = HandlesType.resolve_annotation_type(
+                                    pool, annot, self.Trans._imported_modules, self.Trans._from_imports, self.Trans)
             if resolved is not None:
                 var_ty = resolved
                 # 单参 t.CArray[elem_ty] + 列表字面量 → 静态数组（与 Handle 推断一致）。