"Replace OWIN self-hosting with WebView2 virtual hosting" -m "-

Remove OWIN server implementation (StaticFileServer, Startup)" -m "- Implement
    WebView2 SetVirtualHostNameToFolderMapping in Frm_WebManual" -m "- Remove all
   OWIN NuGet packages from packages.config and .vbproj" -m "- Add comprehensive
   guide document (WEBVIEW2_VIRTUAL_HOSTING.md)" -m "- Mark legacy OWIN files as
   deprecated

ArinWarev1/MdiMain.vb

@@ -1,5 +1,4 @@
 Imports System.IO
-Imports Eco2Ar.WebServer
 
 Public Class MdiMain
 
@@ -21,17 +20,9 @@ Public Class MdiMain
 
     '''현재열려있는폼의 이름을 변경한다.
     Public OpenedForm As E_MenuIdx = E_MenuIdx.NONE
-    Private webServer As StaticFileServer
 
     Private Sub MdiMain_FormClosed(sender As Object, e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
         pLog.Add("FormClosed", True)
-
-        ' 웹 서버 정리
-        If webServer IsNot Nothing Then
-            webServer.Stop()
-            webServer.Dispose()
-        End If
-
     End Sub
 
     Private Sub MdiMain_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
@@ -252,19 +243,6 @@ Public Class MdiMain
 
         pLog.Add("Program Start")
 
-        Try
-            ' 웹 서버 초기화 및 시작
-            Dim wwwPath = Path.Combine(Application.StartupPath, "wwwroot")
-            webServer = New StaticFileServer(wwwPath, 58123)
-            webServer.Start()
-            'If System.Diagnostics.Debugger.IsAttached Then
-            '    webServer.OpenInBrowser()
-            'End If
-        Catch ex As Exception
-            ' 웹 서버 시작 실패해도 프로그램은 계속 실행
-            Debug.WriteLine("웹 서버 시작 실패: " & ex.Message)
-        End Try
-
         ' WebView2 Fixed Version 체크
         CheckWebView2Runtime()
 
@@ -3991,14 +3969,22 @@ ENDSTAT:  '//오류발생시 강제종료를 위한 분기문
 
     Dim frmManual As Frm_WebManual = Nothing
     Private Sub ManualToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles ManualToolStripMenuItem.Click
-        If frmManual Is Nothing OrElse frmManual.IsDisposed Then
-            frmManual = New Frm_WebManual()
+        Try
+            If frmManual Is Nothing OrElse frmManual.IsDisposed Then
+                frmManual = New Frm_WebManual()
+            End If
+
+
+            If frmManual.WindowState = FormWindowState.Minimized Then
+                frmManual.WindowState = FormWindowState.Normal
+            End If
+
             frmManual.Show()
-        End If
-        If frmManual.WindowState = FormWindowState.Minimized Then
-            frmManual.WindowState = FormWindowState.Normal
-        End If
-        frmManual.Activate()
+            frmManual.Activate()
+        Catch ex As Exception
+            MessageBox.Show("매뉴얼 표시 중 오류가 발생했습니다: " & ex.Message,
+                          "오류", MessageBoxButtons.OK, MessageBoxIcon.Error)
+        End Try
     End Sub
 
     ''' <summary>