[ID-3737] fix: windows pkce cmd errors, protocol name, pkce docs

sample/Assets/Scenes/Passport/SelectAuthMethod.unity

@@ -1866,21 +1866,20 @@ MonoBehaviour:
 
 
     1.
-    Authorisation Code Flow with Proof Key for Code Exchange (PKCE) is available
-    for Android, iOS, macOS and WebGL (not officially supported). This method provides
+    Authorisation Code Flow with Proof Key for Code Exchange (PKCE): This method provides
     a seamless and secure authentication experience by opening a pop-up window on
-    macOS or an in-app browser on mobile devices. Players are automatically redirected
+    desktop or an in-app browser on mobile devices. Players are automatically redirected
     back to the game once authenticated, eliminating manual switching.
 
 
     2. Device
-    Code Authorisation is available for Windows, Android, iOS and macOS. This method
+    Code Authorisation: This method
     opens the player''s default browser and guides them through the authentication
     flow.
 
 
     Recommendation: Whenever possible, use the PKCE flow as it is the
-    most secure and seamless method for authentication on Android, iOS and macOS.'
+    most secure and seamless method for authentication.'
 --- !u!222 &1688502351
 CanvasRenderer:
   m_ObjectHideFlags: 0

sample/Assets/Scripts/Passport/PassportInitialisation/PassportInitialisationScript.cs

@@ -56,7 +56,7 @@ public void UsePKCE()
     /// <summary>
     /// Initialises Passport.
     /// </summary>
-    /// <param name="redirectUri">(Android, iOS and macOS only) The URL to which auth will redirect the browser after 
+    /// <param name="redirectUri">The URL to which auth will redirect the browser after 
     /// authorisation has been granted by the user</param>
     /// <param name="logoutRedirectUri">The URL to which auth will redirect the browser
     /// after log out is complete</param>

sample/Assets/Scripts/Passport/_tutorials~/PassportInitialisation/tutorial.md

@@ -75,7 +75,7 @@ For PKCE authentication, the redirect URIs must be configured correctly based on
 ### Prerequisites
 - Create an Immutable Hub account and get your client ID from [Immutable Hub](https://hub.immutable.com)
 - Set up the Unity project with the Immutable Passport SDK
-- Configure your project for the appropriate platform (WebGL, Android, iOS, macOS, Windows)
+- Configure your project for the appropriate platform
 
 ### Steps to Run the Example
 1. Open the Unity project and load the sample scene for Passport Initialisation

src/Packages/Passport/Runtime/Scripts/Private/Helpers/WindowsDeepLink.cs

@@ -137,11 +137,12 @@ private static void CreateCommandScript(string protocolName)
                 "        powershell -NoProfile -ExecutionPolicy Bypass -Command ^",
                 "            \"$ErrorActionPreference = 'Continue';\" ^",
                 "            \"$wshell = New-Object -ComObject wscript.shell;\" ^",
-                "            \"echo [$(Get-Date)] Attempting to activate process ID: %%A >> \\\"{logPath}\\\";\" ^",
+                "            \"Add-Content -Path \\\"{logPath}\\\" -Value ('[' + (Get-Date) + '] Attempting to activate process ID: ' + %%A);\" ^",
                 "            \"Start-Sleep -Milliseconds 100;\" ^",
                 "            \"$result = $wshell.AppActivate(%%A);\" ^",
-                "            \"echo [$(Get-Date)] AppActivate result: $result >> \\\"{logPath}\\\";\" ^",
-                "            \"if (-not $result) { echo [$(Get-Date)] Failed to activate window >> \\\"{logPath}\\\" }\"",
+                "            \"Add-Content -Path \\\"{logPath}\\\" -Value ('[' + (Get-Date) + '] AppActivate result: ' + $result);\" ^",
+                "            \"if (-not $result) { Add-Content -Path \\\"{logPath}\\\" -Value ('[' + (Get-Date) + '] Failed to activate window') }\" ^",
+                "        >nul 2>&1",
                 "        if errorlevel 1 echo [%date% %time%] PowerShell error: %errorlevel% >> \"%LOG_PATH%\"",
                 "        endlocal",
                 "        exit /b 0",
@@ -213,8 +214,19 @@ private static void RegisterProtocol(string protocolName)
                 throw new Exception($"Failed to create PKCE registry key. Error code: {result}");
             }
 
+            // Set the default value for the protocol key to Application.productName
+            // This is often used by Windows as the display name for the protocol
+            string appProductName = Application.productName;
+            uint productNameDataSize = (uint)((appProductName.Length + 1) * Marshal.SystemDefaultCharSize); 
+            int setDefaultResult = RegSetValueEx(hKey, null, 0, REG_SZ, appProductName, productNameDataSize);
+
+            if (setDefaultResult != 0)
+            {
+                PassportLogger.Warn($"Failed to set default display name for protocol '{protocolName}'. Error code: {setDefaultResult}");
+            }
+
             // Set URL Protocol value
-            RegSetValueEx(hKey, "URL Protocol", 0, REG_SZ, string.Empty, 2);
+            RegSetValueEx(hKey, "URL Protocol", 0, REG_SZ, string.Empty, (uint)(1 * Marshal.SystemDefaultCharSize)); 
 
             // Create command subkey
             UIntPtr commandKey;

src/Packages/Passport/Runtime/Scripts/Public/Passport.cs

@@ -137,7 +137,7 @@ private Passport()
         /// </summary>
         /// <param name="clientId">The client ID</param>
         /// <param name="environment">The environment to connect to</param>
-        /// <param name="redirectUri">(Android, iOS, and macOS only) The URL where the browser will redirect after successful authentication.</param>
+        /// <param name="redirectUri">The URL where the browser will redirect after successful authentication.</param>
         /// <param name="logoutRedirectUri">The URL where the browser will redirect after logout is complete.</param>
         /// <param name="engineStartupTimeoutMs">(Windows only) Timeout duration in milliseconds to wait for the default Windows browser engine to start.</param>
         /// <param name="webBrowserClient">(Windows only) Custom Windows browser to use instead of the default browser in the SDK.</param>

src/Packages/Passport/Samples~/SamplesScenesScripts/Scenes/Passport/SelectAuthMethod.unity

@@ -1822,15 +1822,14 @@ MonoBehaviour:
 
 
     1.
-    Authorisation Code Flow with Proof Key for Code Exchange (PKCE) is available
-    for Android, iOS, macOS and WebGL (not officially supported). This method provides
+    Authorisation Code Flow with Proof Key for Code Exchange (PKCE): This method provides
     a seamless and secure authentication experience by opening a pop-up window on
     macOS or an in-app browser on mobile devices. Players are automatically redirected
     back to the game once authenticated, eliminating manual switching.
 
 
     2. Device
-    Code Authorisation is available for Windows, Android, iOS and macOS. This method
+    Code Authorisation: This method
     opens the player''s default browser and guides them through the authentication
     flow.
 

src/Packages/Passport/Samples~/SamplesScenesScripts/Scripts/Passport/SelectAuthMethodScript.cs

@@ -56,7 +56,7 @@ public void UsePKCE()
     /// <summary>
     /// Initialises Passport.
     /// </summary>
-    /// <param name="redirectUri">(Android, iOS and macOS only) The URL to which auth will redirect the browser after 
+    /// <param name="redirectUri">The URL to which auth will redirect the browser after 
     /// authorisation has been granted by the user</param>
     /// <param name="logoutRedirectUri">The URL to which auth will redirect the browser
     /// after log out is complete</param>