Update the module manifest and check the PSReadLine version

Author: daxian-dbw

shell/AIShell.Integration/AIShell.psd1

@@ -1,7 +1,7 @@
 @{
     RootModule = 'AIShell.psm1'
     NestedModules = @("AIShell.Integration.dll")
-    ModuleVersion = '1.0.3'
+    ModuleVersion = '1.0.4'
     GUID = 'ECB8BEE0-59B9-4DAE-9D7B-A990B480279A'
     Author = 'Microsoft Corporation'
     CompanyName = 'Microsoft Corporation'
@@ -13,5 +13,5 @@
     VariablesToExport = '*'
     AliasesToExport = @('aish', 'askai', 'fixit')
     HelpInfoURI = 'https://aka.ms/aishell-help'
-    PrivateData = @{ PSData = @{ Prerelease = 'preview3'; ProjectUri = 'https://github.com/PowerShell/AIShell' } }
+    PrivateData = @{ PSData = @{ Prerelease = 'preview4'; ProjectUri = 'https://github.com/PowerShell/AIShell' } }
 }

shell/AIShell.Integration/AIShell.psm1

@@ -1,3 +1,7 @@
+$module = Get-Module -Name PSReadLine
+if ($null -eq $module -or $module.Version -lt [version]"2.4.1") {
+    throw "The PSReadLine v2.4.1-beta1 or higher is required for the AIShell module to work properly."
+}
 
 ## Create the channel singleton when loading the module.
 $null = [AIShell.Integration.Channel]::CreateSingleton($host.Runspace, [Microsoft.PowerShell.PSConsoleReadLine])