fix(naming): set window title when get_current_location claims an unowned console

GetCurrentLocation discarded FindReadyPipeAsync's consoleSwitched
flag with `_`, so when an AI's first tool call after the user's
Import-Module PowerShell.MCP happened to be get_current_location
(rather than invoke_expression / start_console, which both honor the
flag), the proxy claimed the console without ever calling
SetConsoleTitleAsync. The window title was left at the OnImport
placeholder "#PID ____" until some other tool that handles
consoleSwitched ran later — which made the symptom appear
intermittent depending on tool-call ordering.

The fix captures consoleSwitched and routes through SetConsoleTitleAsync
on the same tight path InvokeExpression and StartConsole already use.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: yotsuda

PowerShell.MCP.Proxy/Tools/PowerShellTools.cs

@@ -97,7 +97,7 @@ public static async Task<string> GetCurrentLocation(
             return error;
 
         // Find a ready pipe
-        var (readyPipeName, _, closedConsoleMessages, allPipesStatusInfo) = await FindReadyPipeAsync(pipeDiscoveryService, agentId, cancellationToken);
+        var (readyPipeName, consoleSwitched, closedConsoleMessages, allPipesStatusInfo) = await FindReadyPipeAsync(pipeDiscoveryService, agentId, cancellationToken);
 
         if (readyPipeName == null)
         {
@@ -108,6 +108,15 @@ public static async Task<string> GetCurrentLocation(
 
         try
         {
+            // Set console window title if this was a newly claimed (unowned) console.
+            // Without this, get_current_location as the first tool call after the user
+            // ran Import-Module PowerShell.MCP would leave the title as the placeholder
+            // "#PID ____" until some other tool that handles consoleSwitched runs.
+            if (consoleSwitched)
+            {
+                await SetConsoleTitleAsync(powerShellService, readyPipeName, cancellationToken);
+            }
+
             // Get location (DLL will include its own cached outputs automatically)
             var result = await powerShellService.GetCurrentLocationFromPipeAsync(readyPipeName, cancellationToken);