feat: Excel to SQL Server migration tool for production execution cards

Migrates pressure gauge (PG) and thermometer (TM) data from .xlsm files
into SQL Server executionCard schema, one table per year (PG_2022-2026,
TM_2022-2026). Supports single/multi-table migration, column remapping,
type inference, and dry-run mode via config.yaml.

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

config.yaml.example

@@ -0,0 +1,108 @@
+# Excel to SQL Server Migration Configuration
+
+# ================= SQL Server 连接 =================
+sql_server:
+  driver: "ODBC Driver 18 for SQL Server"
+  server: "192.168.110.114"
+  database: "CompanyDB"
+  username: "YOUR_USERNAME_HERE"
+  password: "YOUR_PASSWORD_HERE"
+  TrustServerCertificate: "yes"
+
+# ================= 目标 Schema =================
+schema: "executionCard"
+
+# ================= 批量插入参数 =================
+batch_size: 500
+
+# ================= 主键列名（用于去重） =================
+primary_key: "总排号"
+
+# ================= 列名重映射 =================
+# 读取 Excel 时将原始列名替换为目标列名
+column_mapping:
+  "ID": "CRM订单明细ID"
+
+# ================= 数据类型推断规则 =================
+type_rules:
+  datetime:
+    - "日期"
+    - "Date"
+  int:
+    - name: "数量"
+      exact: true
+  decimal:
+    - name: "单价"
+      exact: true
+  long_text:
+    - "备注"
+    - "技术参数"
+    - "说明"
+    - "转换数据"
+    - "新参数"
+  primary_key_type: "NVARCHAR(50) NOT NULL"
+  default_type: "NVARCHAR(MAX)"
+
+# ================= 数据源映射 =================
+# 每个条目对应一个目标表
+# sources 中的顺序决定去重优先级：后出现的覆盖先出现的（同总排号时）
+tables:
+  # ---------- 压力表 (PG) ----------
+  - table: "PG_2022"
+    sources:
+      - file: "PG/生产执行卡2022.xlsm"
+        sheet: "Sheet1"
+
+  - table: "PG_2023"
+    sources:
+      - file: "PG/生产执行卡2023（1-5月）.xlsm"
+        sheet: "Sheet1"
+      - file: "PG/生产执行卡2023(6月-.xlsm"
+        sheet: "Sheet1"
+
+  - table: "PG_2024"
+    sources:
+      - file: "PG/生产执行卡2024 6月.xlsm"
+        sheet: "重庆数据"
+      - file: "PG/生产执行卡2024 6月.xlsm"
+        sheet: "北京数据"
+
+  - table: "PG_2025"
+    sources:
+      - file: "PG/生产执行卡2025年.xlsm"
+        sheet: "重庆数据"
+      - file: "PG/生产执行卡2025年.xlsm"
+        sheet: "北京数据"
+
+  - table: "PG_2026"
+    sources:
+      - file: "PG/生产执行卡2026年.xlsm"
+        sheet: "重庆数据"
+      - file: "PG/生产执行卡2026年.xlsm"
+        sheet: "北京数据"
+
+  # ---------- 温度计 (TM) ----------
+  - table: "TM_2022"
+    sources:
+      - file: "TM/生产执行卡(2022合同数据).xlsm"
+        sheet: "数据"
+
+  - table: "TM_2023"
+    sources:
+      - file: "TM/生产执行卡(2023合同数据).xlsm"
+        sheet: "数据"
+
+  - table: "TM_2024"
+    sources:
+      - file: "TM/生产执行卡(新版1).xlsm"
+        sheet: "数据"
+
+  - table: "TM_2025"
+    sources:
+      - file: "TM/生产执行卡2025.xlsm"
+        sheet: "数据"
+
+  - table: "TM_2026"
+    sources:
+      - file: "TM/生产执行卡2026.xlsm"
+        sheet: "数据"