✨ feat: add auto table creation and per-PK sync verification

- Add new Access table mappings for transmitter contracts (25/26年变送器) and tube bending workshop (弯管车间烘洗)
- Add auto-create target table from Access schema when table does not exist (db_utils + init_full_sync)
- Implement per-primary-key verification in incremental sync: verify deletes are gone and inserts are present before marking Synced=1
- Add post-commit re-verification with Synced rollback on failure for automatic retry
- Batch IN clause parameters to stay under SQL Server limit
- Adjust poll interval from 5s to 30s
- Improve IDENTITY_INSERT cleanup in finally blocks

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

config/app_settings.py

@@ -45,7 +45,7 @@ EXCEL_SYNC_UPTIME_KUMA_CONFIG = {
 
 # ================= 运行参数 =================
 # 合并原 config.py 和 update_config.py 的配置
-POLL_INTERVAL = 5     # 轮询间隔(秒)
+POLL_INTERVAL = 30     # 轮询间隔(秒)
 EXCEL_SYNC_INTERVAL = 600  # Excel 同步周期(秒)，默认 10 分钟
 BATCH_SIZE = 10000    # 批量处理大小
 CACHE_DIR = os.path.join(os.getcwd(), "temp")  # Excel 缓存目录