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/M01_Main.bas

@@ -4,6 +4,10 @@
 ' ==============================================================================
 Option Explicit
 
+' ------------------------------------------------------------------------------
+' 入口1: 运行BOM转换系统（原功能）
+' 功能: 从"平台配置清单"读取数据，解析条件规则，生成分类BOM
+' ------------------------------------------------------------------------------
 Public Sub RunBOMConversion()
     Dim wsSrc As Worksheet
     Dim arrData As Variant
@@ -126,6 +130,23 @@ MainErrorHandler:
     Resume ExitHandler
 End Sub
 
+' ------------------------------------------------------------------------------
+' 入口2: 运行BOM自动提取系统（新功能）
+' 功能: 从产品型号中提取参数，匹配BOM库，输出标准BOM清单
+'
+' 使用方法:
+'   1. 在当前工作簿中准备"产品型号"列的工作表
+'   2. 确保BOM库.xlsx在同一目录下
+'   3. 运行此函数
+'
+' 输出: 在"BOM提取结果"工作表中显示提取结果
+' ------------------------------------------------------------------------------
+Public Sub RunBOMExtraction()
+    Dim result As String
+    result = M09_BOMExtractor.RunBOMExtraction()
+    MsgBox result, vbInformation, "BOM提取"
+End Sub
+
 ' ==============================================================================
 ' 过程: GeneratePreprocessingReport
 ' 职责: 生成预处理条件转换对比报表，展示"接头"类别的条件转换结果
@@ -457,7 +478,7 @@ Private Function ContainsAzxsChange( _
 
     regex.Global = True
     regex.IgnoreCase = True
-    regex.Pattern = "(azxs)( *=|!= *)([a-zA-Z0-9]{2})"
+    regex.pattern = "(azxs)( *=|!= *)([a-zA-Z0-9]{2})"
 
     ' 提取原始azxs值
     Dim origMatches As Object
@@ -499,7 +520,7 @@ Private Function ContainsLcfwChange( _
 
     regex.Global = True
     regex.IgnoreCase = True
-    regex.Pattern = "(lcfw)( *=|!= *)([a-zA-Z]\d{1,3})"
+    regex.pattern = "(lcfw)( *=|!= *)([a-zA-Z]\d{1,3})"
 
     ' 提取原始lcfw值
     Dim origMatches As Object
@@ -585,7 +606,7 @@ Private Function ExtractFieldMappings( _
 
     regex.Global = True
     regex.IgnoreCase = True
-    regex.Pattern = pattern
+    regex.pattern = pattern
 
     ' 从原始条件中提取所有该字段的值
     Dim origMatches As Object