feat: 结构化输出按官方规范 + 两段式重试 + DeepSeek 复检开关

- 豆包: response_format.json_schema(strict)；DeepSeek: 切 Responses API text.format.json_schema
  （官方 chat/completions 通道不支持 json_schema），不支持时自动降级 json_object（[output] schema）
- 重试两段式：传输错误 cfg.retries 次；解析失败/空正文有独立 3 次专用重试，仍失败落 parse_fail
- 移除三票复核（decide_final/_verify_clean/verify_clean），DeepSeek 单次判定即终稿
- 新增 [run] deepseek_recheck 开关（默认 no=仅豆包初筛；yes=追加 DeepSeek 复检）
- GUI 不再覆盖 config 提示词；prompt 相对/前导斜杠路径按 exe 目录解析
- 报表去「票型/复核」列并同步说明；README/config.example.ini 同步
- 测试新增输出格式、重试、开关与提示词路径用例（50 passed）

tests/test_report.py

@@ -7,7 +7,7 @@ from violation_detector.report import build_report, organize_output, sanitize_di
 
 def ROW(cat, fname="img.jpg", channel="豆包初筛"):
     return {"file": fname, "category": cat, "channel": channel, "attr": "属性",
-            "logic": "逻辑", "status": "ok", "vote_note": "", "remark": ""}
+            "logic": "逻辑", "status": "ok", "remark": ""}
 
 
 def test_sanitize_dirname():
@@ -48,7 +48,6 @@ def test_build_report_structure(tmp_path):
     rows = [ROW("12. 侵权 - 除人物外的其他侵权", "a.jpg"),
             ROW("无违规", "b.jpg", channel="DeepSeek复检"),
             ROW("无违规", "b.jpg")]
-    rows[2]["vote_note"] = "票型2:1（无违规 / 无违规 / 12. 侵权），建议人工复核"
     out = build_report(rows, str(tmp_path), {"mode": "cascade", "ds_calls": 3,
                                              "ds_peak_cost": 0.1, "ds_idle_cost": 0.05})
     assert out.endswith(".xlsx")
@@ -56,13 +55,12 @@ def test_build_report_structure(tmp_path):
     wb = load_workbook(out)
     ws = wb["检测结果"]
     assert ws["B2"].value.startswith("商品图合规检测工具")
-    headers = [ws.cell(row=4, column=c).value for c in range(2, 10)]
+    headers = [ws.cell(row=4, column=c).value for c in range(2, 9)]
     assert headers == ["序号", "文件名", "违规分类", "判定通道", "文字/图形属性",
-                       "侵权/违规逻辑", "票型/复核", "备注"]
+                       "侵权/违规逻辑", "备注"]
     assert ws.cell(row=5, column=2).value == 1
     assert ws.cell(row=6, column=5).value == "DeepSeek复检"
     assert ws.cell(row=5, column=5).value == "豆包初筛"
-    assert "人工复核" in ws.cell(row=7, column=8).value
 
     ws2 = wb["统计汇总"]
     cats = [ws2.cell(row=r, column=2).value for r in (5, 6)]