refactor: standardize variable naming and file formatting

- Rename Quantity to quantity in BomItem for consistent naming convention
- Update references in MainModule to use lowercase quantity
- Add newlines at end of files for consistency
- Update vba_metadata.json with new source path and document module

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

VBA/ClassModules/BomItem.cls

@@ -12,7 +12,7 @@ Public RowNumber As Long        ' 行号
 Public Module As String         ' 模块
 Public code As String           ' 代号
 Public Name As String           ' 名称
-Public Quantity As Double       ' 数量
+Public quantity As Double       ' 数量
 Public SelectCondition As String ' 选择条件
 Public Remark As String         ' 备注
 Public category As String       ' 类别
@@ -46,7 +46,7 @@ Public Sub LoadFromRow(ws As Worksheet, row As Long)
     Me.Module = CStr(ws.Cells(row, 2).value)     ' B列: 模块
     Me.code = CStr(ws.Cells(row, 3).value)       ' C列: 代号
     Me.Name = CStr(ws.Cells(row, 4).value)       ' D列: 名称
-    Me.Quantity = CDbl(ws.Cells(row, 5).value)   ' E列: 数量
+    Me.quantity = CDbl(ws.Cells(row, 5).value)   ' E列: 数量
     Me.SelectCondition = CStr(ws.Cells(row, 6).value)  ' F列: 选择条件
     Me.Remark = CStr(ws.Cells(row, 7).value)     ' G列: 备注
     Me.category = CStr(ws.Cells(row, 8).value)   ' H列: 类别

VBA/DocumentModules/Sheet9.cls

@@ -0,0 +1,4 @@
+Private Sub CommandButton1_Click()
+    Call ProcessProductModels
+    Call ProcessOrdersToBIP
+End Sub

VBA/Modules/MainModule.bas

@@ -275,7 +275,7 @@ Private Function CreateOutputRowArray(FullModel As String, _
         rowData(col) = item.Module: col = col + 1
         rowData(col) = item.code: col = col + 1
         rowData(col) = item.Name: col = col + 1
-        rowData(col) = item.Quantity: col = col + 1
+        rowData(col) = item.quantity: col = col + 1
         rowData(col) = item.category: col = col + 1
         rowData(col) = item.Code66: col = col + 1
     Else

VBA/vba_metadata.json

@@ -1,6 +1,12 @@
 {
-  "source_file": "C:\\Users\\pengq\\Downloads\\AutoBOM\\AutoBOM\\YTHN-100_-_Claude3.xlsm",
+  "source_file": "C:\\Users\\Administrator\\Desktop\\新BOM\\AutoBOM\\YTHN-100.xlsm",
   "modules": {
+    "Sheet9.cls": {
+      "name": "Sheet9",
+      "type": "DocumentModules",
+      "attributes": {},
+      "file": "DocumentModules\\Sheet9.cls"
+    },
     "MainModule.bas": {
       "name": "MainModule",
       "type": "Modules",