feat: implement BOM auto-extraction system

Add complete BOM auto-extraction system with the following modules:

- M06_ModelParser: Parse product model strings to extract parameters
  (azxs, bkxs, gclj, jycz, lcfw, fjgn)
  - Extracts header part from full model (ignores dial/attachment parts)
  - Splits process connection and material code (G123 -> G12, 3)
  - Supports multiple additional features with comma/dot separators

- M07_BOMMatcher: Match materials in BOM library
  - Exact match, wildcard (empty cell), negative match (!=)
  - Special fjgn contains matching logic
  - Array-based performance optimization for bulk operations

- M08_ComponentProcessor: Handle component material special logic
  - Component inventory check (interface reserved)
  - Sub-component extraction (joint + elastic element)
  - Combination validation rules (1 component OR 1 joint + 1 element)

- M09_BOMExtractor: Main extraction orchestrator
  - Reads input models from worksheet
  - Processes each model and matches all material types
  - Outputs to "BOM提取结果" worksheet
  - Error reporting and non-blocking design

- M06B_TestRunner: Comprehensive unit tests
  - 8 test cases for model parsing
  - 5 test cases for BOM matching
  - 5 test cases for component processing

- M04_Config: Add BOM extraction constants
  - BOM library filename and configuration
  - Input/output column definitions
  - Output column enumeration

- M01_Main: Add RunBOMExtraction entry point

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

VBA_BOMConverter/Modules/M04_Config.bas

@@ -12,6 +12,48 @@ Public Const COL_IDX_COND As Long = 6      ' 选择条件 (F列)
 Public Const COL_IDX_CAT As Long = 8       ' 类别 (H列)
 Public Const SRC_START_ROW As Long = 4     ' 数据起始行
 
+' ------------------------------------------------------------------------------
+' BOM自动提取系统配置常量
+' ------------------------------------------------------------------------------
+
+' BOM库配置
+Public Const BOMLIB_FILENAME As String = "BOM库.xlsx"
+Public Const BOMLIB_START_ROW As Long = 2  ' BOM库数据起始行（第1行是表头）
+Public Const OUTPUT_SHEET_NAME As String = "BOM提取结果"
+
+' 输入列名称配置
+Public Const INPUT_COL_MODEL As String = "型号"
+Public Const INPUT_COL_PRODUCT_MODEL As String = "产品型号"
+
+' 输出列枚举
+Public Enum OutputColumns
+    oc_OriginalModel = 1       ' 原始产品型号
+    oc_Azxs = 2               ' 安装形式
+    oc_Bkxs = 3               ' 表壳形式
+    oc_Gclj = 4               ' 过程连接
+    oc_Jycz = 5               ' 接液材质
+    oc_Lcfw = 6               ' 量程范围
+    oc_Fjgn = 7               ' 附加功能
+    oc_MaterialType = 8        ' 物料类型
+    oc_MaterialName = 9        ' 物料名称
+    oc_MaterialCode = 10       ' 物料编码
+    oc_MaterialQty = 11        ' 物料数量
+    oc_Remarks = 12           ' 提取备注
+End Enum
+
+' 型号解析常量
+Public Const MODEL_SEPARATOR_PIPELINE As String = "|"    ' 管道符分隔符
+Public Const MODEL_SEPARATOR_DOT As String = "."       ' 点号分隔符
+Public Const MODEL_SEPARATOR_CARET As String = "^"     ' 插入符分隔符（法兰隔膜）
+Public Const MODEL_HEADER_MIN_SEGMENTS As Long = 6     ' 表头最小段数
+
+' BOM库工作表列表（需要遍历的工作表）
+Public Const BOMLIB_SHEET_JOINT As String = "接头"
+Public Const BOMLIB_SHEET_ELEMENT As String = "弹性元件"
+Public Const BOMLIB_SHEET_MOVEMENT As String = "机芯"
+Public Const BOMLIB_SHEET_COMPONENT As String = "部件"
+Public Const BOMLIB_SHEET_EDGE As String = "边"
+
 ' 获取表头排序索引 (越小越靠前)
 Public Function GetHeaderPriority(key As String) As Long
     Dim vList As Variant