fix: 里程碑2 最终评审 must-fix（header_row 接线 + formatting 回填）

src/genesis/parsers/excel_parser.py

@@ -6,10 +6,10 @@ from pathlib import Path
 from genesis.data_models import CellComment, ExcelTable
 from genesis.parsers.excel_reader import open_workbook, sheet_matrix
 from genesis.parsers.sheet_detector import detect_sheet_type
-from genesis.parsers.sheet_nature import SheetNature, classify_sheet
+from genesis.parsers.sheet_nature import SheetNature, classify_sheet, find_header_row
 from genesis.parsers.merge_fill import forward_fill
 from genesis.parsers.table_extractor import extract_table
-from genesis.parsers.formatting_detector import collect_comments
+from genesis.parsers.formatting_detector import cell_formatting, collect_comments
 from genesis.parsers.free_text_extractor import build_free_text_table, extract_text_blocks
 
 
@@ -46,6 +46,20 @@ class ExcelParser:
                     for r in ws.merged_cells.ranges
                 ]
                 filled = forward_fill(matrix, merged) if merged else matrix
-                result.tables.append(extract_table(ws.title, filled, file_name, detected_type))
+                header_row = find_header_row(filled)
+                if header_row < 0:
+                    header_row = 0
+                fmt_map = {}
+                for row in ws.iter_rows():
+                    for cell in row:
+                        fmt = cell_formatting(cell)
+                        if fmt is not None:
+                            fmt_map[(cell.row - 1, cell.column - 1)] = fmt
+                result.tables.append(
+                    extract_table(
+                        ws.title, filled, file_name, detected_type,
+                        header_row=header_row, formatting_map=fmt_map,
+                    )
+                )
             result.comments.extend(collect_comments(ws, file_name))
         return result

src/genesis/parsers/table_extractor.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from typing import Any
 
-from genesis.data_models import CellValue, ExcelTable, Provenance, SheetType
+from genesis.data_models import CellFormatting, CellValue, ExcelTable, Provenance, SheetType
 
 
 def column_letter(index: int) -> str:
@@ -20,13 +20,18 @@ def extract_table(
     file_name: str,
     detected_type: SheetType,
     header_row: int = 0,
+    formatting_map: dict[tuple[int, int], CellFormatting] | None = None,
 ) -> ExcelTable:
-    """从矩阵提取表格：首行视为表头，其后为数据行。"""
+    """从矩阵提取表格：首行视为表头，其后为数据行。
+
+    formatting_map：矩阵坐标 (row, col)（0 起）→ CellFormatting，用于还原取消线/背景色等样式。
+    """
     if not matrix:
         return ExcelTable(
             name=sheet_name, detected_type=detected_type,
             extraction_method="openpyxl", headers=[], rows=[],
         )
+    fmt_map = formatting_map or {}
     headers = [str(c) if c is not None else "" for c in matrix[header_row]]
     rows = []
     for r in range(header_row + 1, len(matrix)):
@@ -42,6 +47,7 @@ def extract_table(
                     column=column_letter(c + 1),
                     column_header=h,
                 ),
+                formatting=fmt_map.get((r, c)),
             )
         rows.append(row_dict)
     return ExcelTable(