CI: build Inno Setup installer instead of zip

Read lastActiveOrg cookie in both the browser JS path and HttpClient
fallback, then prefer the matching org in ParseBootstrap for both
org ID and plan label selection — same fix as macOS v1.3.0.

Add Settings → Diagnostics panel showing app state, last request
details, cookie store counts/domains, and stored cookie names.

.github/workflows/release-windows-beta.yml

@@ -34,11 +34,11 @@ jobs:
             -p:Version=${{ steps.version.outputs.version }} `
             -o publish
 
-      - name: Zip
+      - name: Build installer
         shell: pwsh
         run: |
           Copy-Item -Recurse windows/Assets publish/Assets
-          Compress-Archive -Path publish/* -DestinationPath ClaudeChecker-Windows.zip
+          & "C:\Program Files (x86)\Inno Setup 6\iscc.exe" /DAppVersion="${{ steps.version.outputs.version }}" windows\installer.iss
 
       - name: Create GitHub pre-release
         env:
@@ -46,7 +46,7 @@ jobs:
         shell: bash
         run: |
           notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows beta ${{ steps.version.outputs.version }}")
-          gh release create "$GITHUB_REF_NAME" ClaudeChecker-Windows.zip \
+          gh release create "$GITHUB_REF_NAME" ClaudeChecker-Installer.exe \
             --title "$GITHUB_REF_NAME" \
             --prerelease \
             --notes "$notes"
@@ -59,7 +59,7 @@ jobs:
           notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows beta ${{ steps.version.outputs.version }}")
           content=$(jq -n \
             --arg version "${{ steps.version.outputs.version }}" \
-            --arg url "https://github.com/${{ github.repository }}/releases/download/${{ github.ref_name }}/ClaudeChecker-Windows.zip" \
+            --arg url "https://github.com/${{ github.repository }}/releases/download/${{ github.ref_name }}/ClaudeChecker-Installer.exe" \
             --arg notes "$notes" \
             '{version: $version, url: $url, notes: $notes}' | base64 -w0)
           sha=$(gh api "repos/${{ github.repository }}/contents/version-windows-beta.json?ref=main" --jq .sha 2>/dev/null || echo "")
@@ -75,3 +75,28 @@ jobs:
               --field "content=$content" \
               --field "branch=main"
           fi
+
+      - name: Update Windows beta badge in README on main
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+        shell: bash
+        run: |
+          version="${{ steps.version.outputs.version }}"
+          tag="${{ github.ref_name }}"
+          shields_version=$(echo "$version" | sed 's/-/--/g')
+          export WIN_BADGE="[![Win Beta](https://img.shields.io/badge/Win_Beta-${shields_version}-blue?style=flat)](https://github.com/${{ github.repository }}/releases/tag/${tag}) <!-- WIN_BETA_BADGE -->"
+          sha=$(gh api "repos/${{ github.repository }}/contents/README.md?ref=main" --jq .sha)
+          content=$(gh api "repos/${{ github.repository }}/contents/README.md?ref=main" --jq .content | python3 -c "
+          import sys, base64, os
+          raw = sys.stdin.read().strip()
+          text = base64.b64decode(raw).decode()
+          badge = os.environ['WIN_BADGE']
+          lines = text.splitlines(keepends=True)
+          out = [badge + chr(10) if '<!-- WIN_BETA_BADGE -->' in line else line for line in lines]
+          print(base64.b64encode(''.join(out).encode()).decode(), end='')
+          ")
+          gh api --method PUT "repos/${{ github.repository }}/contents/README.md" \
+            --field "message=Windows beta badge $tag" \
+            --field "content=$content" \
+            --field "branch=main" \
+            --field "sha=$sha"

.github/workflows/release-windows.yml

@@ -35,11 +35,11 @@ jobs:
             -p:Version=${{ steps.version.outputs.version }} `
             -o publish
 
-      - name: Zip
+      - name: Build installer
         shell: pwsh
         run: |
           Copy-Item -Recurse windows/Assets publish/Assets
-          Compress-Archive -Path publish/* -DestinationPath ClaudeChecker-Windows.zip
+          & "C:\Program Files (x86)\Inno Setup 6\iscc.exe" /DAppVersion="${{ steps.version.outputs.version }}" windows\installer.iss
 
       - name: Create GitHub release
         env:
@@ -47,7 +47,7 @@ jobs:
         shell: bash
         run: |
           notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows release ${{ steps.version.outputs.version }}")
-          gh release create "$GITHUB_REF_NAME" ClaudeChecker-Windows.zip \
+          gh release create "$GITHUB_REF_NAME" ClaudeChecker-Installer.exe \
             --title "$GITHUB_REF_NAME" \
             --notes "$notes"
 
@@ -59,7 +59,7 @@ jobs:
           notes=$(cat windows/RELEASE_NOTES.md 2>/dev/null || echo "Windows release ${{ steps.version.outputs.version }}")
           content=$(jq -n \
             --arg version "${{ steps.version.outputs.version }}" \
-            --arg url "https://github.com/${{ github.repository }}/releases/download/${{ github.ref_name }}/ClaudeChecker-Windows.zip" \
+            --arg url "https://github.com/${{ github.repository }}/releases/download/${{ github.ref_name }}/ClaudeChecker-Installer.exe" \
             --arg notes "$notes" \
             '{version: $version, url: $url, notes: $notes}' | base64 -w0)
           sha=$(gh api "repos/${{ github.repository }}/contents/version-windows.json?ref=main" --jq .sha 2>/dev/null || echo "")
@@ -75,3 +75,40 @@ jobs:
               --field "content=$content" \
               --field "branch=main"
           fi
+
+      - name: Update Windows stable badge in README on main
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+        shell: bash
+        run: |
+          version="${{ steps.version.outputs.version }}"
+          tag="${{ github.ref_name }}"
+          shields_version=$(echo "$version" | sed 's/-/--/g')
+          export WIN_STABLE_BADGE="[![Win Stable](https://img.shields.io/badge/Win_Stable-${shields_version}-blue?style=flat)](https://github.com/${{ github.repository }}/releases/tag/${tag}) <!-- WIN_STABLE_BADGE -->"
+          sha=$(gh api "repos/${{ github.repository }}/contents/README.md?ref=main" --jq .sha)
+          content=$(gh api "repos/${{ github.repository }}/contents/README.md?ref=main" --jq .content | python3 -c "
+          import sys, base64, os
+          raw = sys.stdin.read().strip()
+          text = base64.b64decode(raw).decode()
+          stable_badge = os.environ['WIN_STABLE_BADGE']
+          lines = text.splitlines(keepends=True)
+          out = []
+          for line in lines:
+              if '<!-- WIN_STABLE_BADGE -->' in line:
+                  out.append(stable_badge + chr(10))
+                  rest = line.replace(' <!-- WIN_STABLE_BADGE -->', '').replace('<!-- WIN_STABLE_BADGE -->', '')
+                  if rest.strip() and '<!-- WIN_BETA_BADGE -->' in rest:
+                      out.append('<!-- WIN_BETA_BADGE -->' + chr(10))
+                  elif rest.strip():
+                      out.append(rest)
+              elif '<!-- WIN_BETA_BADGE -->' in line:
+                  out.append('<!-- WIN_BETA_BADGE -->' + chr(10))
+              else:
+                  out.append(line)
+          print(base64.b64encode(''.join(out).encode()).decode(), end='')
+          ")
+          gh api --method PUT "repos/${{ github.repository }}/contents/README.md" \
+            --field "message=Windows stable badge $tag" \
+            --field "content=$content" \
+            --field "branch=main" \
+            --field "sha=$sha"

windows/App.xaml

@@ -15,7 +15,8 @@
         <SolidColorBrush x:Key="SurfaceBrush"      Color="#FAFAFA" po:Freeze="False"/>
         <SolidColorBrush x:Key="BannerBgBrush"     Color="#E8F2FB" po:Freeze="False"/>
         <SolidColorBrush x:Key="BannerBorderBrush" Color="#B3D6F5" po:Freeze="False"/>
-        <SolidColorBrush x:Key="HoverBrush"       Color="#EBEBEB" po:Freeze="False"/>
+        <SolidColorBrush x:Key="HoverBrush"        Color="#EBEBEB" po:Freeze="False"/>
+        <SolidColorBrush x:Key="PressedBrush"      Color="#D6D6D6" po:Freeze="False"/>
         <SolidColorBrush x:Key="BadgeBrush"        Color="#F0F0F0" po:Freeze="False"/>
 
         <Style x:Key="HeaderText" TargetType="TextBlock">
@@ -26,27 +27,31 @@
         </Style>
 
         <Style x:Key="PrimaryButton" TargetType="Button">
-            <Setter Property="Background"      Value="{DynamicResource BlueBrush}"/>
-            <Setter Property="Foreground"      Value="White"/>
-            <Setter Property="BorderThickness" Value="0"/>
-            <Setter Property="Padding"         Value="14,6"/>
-            <Setter Property="FontSize"        Value="12"/>
-            <Setter Property="FontWeight"      Value="SemiBold"/>
-            <Setter Property="FontFamily"      Value="Segoe UI"/>
-            <Setter Property="Cursor"          Value="Hand"/>
+            <Setter Property="Background"        Value="{DynamicResource BlueBrush}"/>
+            <Setter Property="Foreground"        Value="White"/>
+            <Setter Property="BorderThickness"   Value="0"/>
+            <Setter Property="Padding"           Value="14,6"/>
+            <Setter Property="FontSize"          Value="12"/>
+            <Setter Property="FontWeight"        Value="SemiBold"/>
+            <Setter Property="FontFamily"        Value="Segoe UI"/>
+            <Setter Property="Cursor"            Value="Hand"/>
+            <Setter Property="FocusVisualStyle"  Value="{x:Null}"/>
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="Button">
-                        <Border Background="{TemplateBinding Background}" CornerRadius="4"
-                                Padding="{TemplateBinding Padding}">
+                        <Border x:Name="Bd" Background="{TemplateBinding Background}"
+                                CornerRadius="4" Padding="{TemplateBinding Padding}">
                             <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
                         </Border>
                         <ControlTemplate.Triggers>
                             <Trigger Property="IsMouseOver" Value="True">
-                                <Setter Property="Background" Value="#106EBE"/>
+                                <Setter TargetName="Bd" Property="Background" Value="#106EBE"/>
+                            </Trigger>
+                            <Trigger Property="IsPressed" Value="True">
+                                <Setter TargetName="Bd" Property="Background" Value="#005A9E"/>
                             </Trigger>
                             <Trigger Property="IsEnabled" Value="False">
-                                <Setter Property="Background" Value="#BDBDBD"/>
+                                <Setter TargetName="Bd" Property="Background" Value="#BDBDBD"/>
                             </Trigger>
                         </ControlTemplate.Triggers>
                     </ControlTemplate>
@@ -55,18 +60,20 @@
         </Style>
 
         <Style x:Key="SmallButton" TargetType="Button">
-            <Setter Property="Background"      Value="{DynamicResource ButtonBrush}"/>
-            <Setter Property="BorderBrush"     Value="{DynamicResource BorderBrush}"/>
-            <Setter Property="BorderThickness" Value="1"/>
-            <Setter Property="Foreground"      Value="{DynamicResource TextBrush}"/>
-            <Setter Property="Padding"         Value="10,4"/>
-            <Setter Property="FontSize"        Value="12"/>
-            <Setter Property="FontFamily"      Value="Segoe UI"/>
-            <Setter Property="Cursor"          Value="Hand"/>
+            <Setter Property="Background"       Value="{DynamicResource ButtonBrush}"/>
+            <Setter Property="BorderBrush"      Value="{DynamicResource BorderBrush}"/>
+            <Setter Property="BorderThickness"  Value="1"/>
+            <Setter Property="Foreground"       Value="{DynamicResource TextBrush}"/>
+            <Setter Property="Padding"          Value="10,4"/>
+            <Setter Property="FontSize"         Value="12"/>
+            <Setter Property="FontFamily"       Value="Segoe UI"/>
+            <Setter Property="Cursor"           Value="Hand"/>
+            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="Button">
-                        <Border Background="{TemplateBinding Background}"
+                        <Border x:Name="Bd"
+                                Background="{TemplateBinding Background}"
                                 BorderBrush="{TemplateBinding BorderBrush}"
                                 BorderThickness="{TemplateBinding BorderThickness}"
                                 CornerRadius="4" Padding="{TemplateBinding Padding}">
@@ -74,7 +81,10 @@
                         </Border>
                         <ControlTemplate.Triggers>
                             <Trigger Property="IsMouseOver" Value="True">
-                                <Setter Property="Background" Value="{DynamicResource HoverBrush}"/>
+                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource HoverBrush}"/>
+                            </Trigger>
+                            <Trigger Property="IsPressed" Value="True">
+                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource PressedBrush}"/>
                             </Trigger>
                         </ControlTemplate.Triggers>
                     </ControlTemplate>
@@ -83,18 +93,19 @@
         </Style>
 
         <Style TargetType="ComboBox">
-            <Setter Property="FontFamily"      Value="Segoe UI"/>
-            <Setter Property="FontSize"        Value="12"/>
-            <Setter Property="Background"      Value="{DynamicResource CardBrush}"/>
-            <Setter Property="Foreground"      Value="{DynamicResource TextBrush}"/>
-            <Setter Property="BorderBrush"     Value="{DynamicResource BorderBrush}"/>
-            <Setter Property="BorderThickness" Value="1"/>
-            <Setter Property="Padding"         Value="8,4"/>
+            <Setter Property="FontFamily"       Value="Segoe UI"/>
+            <Setter Property="FontSize"         Value="12"/>
+            <Setter Property="Background"       Value="{DynamicResource CardBrush}"/>
+            <Setter Property="Foreground"       Value="{DynamicResource TextBrush}"/>
+            <Setter Property="BorderBrush"      Value="{DynamicResource BorderBrush}"/>
+            <Setter Property="BorderThickness"  Value="1"/>
+            <Setter Property="Padding"          Value="8,4"/>
+            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="ComboBox">
                         <Grid>
-                            <Border x:Name="Border"
+                            <Border x:Name="Bd"
                                     Background="{TemplateBinding Background}"
                                     BorderBrush="{TemplateBinding BorderBrush}"
                                     BorderThickness="{TemplateBinding BorderThickness}"
@@ -106,14 +117,21 @@
                                         ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}"
                                         Margin="{TemplateBinding Padding}"
                                         VerticalAlignment="Center" HorizontalAlignment="Left"/>
-                                    <TextBlock Text="▾" FontSize="10"
+                                    <TextBlock Text="&#x25BE;" FontSize="10"
                                                Foreground="{DynamicResource SecondaryBrush}"
                                                HorizontalAlignment="Right" VerticalAlignment="Center"
                                                Margin="0,0,8,0" IsHitTestVisible="False"/>
+                                    <!-- Fully transparent toggle — no system chrome bleeds through -->
                                     <ToggleButton Focusable="False" ClickMode="Press"
+                                                  FocusVisualStyle="{x:Null}"
                                                   IsChecked="{Binding IsDropDownOpen, Mode=TwoWay,
-                                                      RelativeSource={RelativeSource TemplatedParent}}"
-                                                  Background="Transparent" BorderThickness="0"/>
+                                                      RelativeSource={RelativeSource TemplatedParent}}">
+                                        <ToggleButton.Template>
+                                            <ControlTemplate TargetType="ToggleButton">
+                                                <Border Background="Transparent"/>
+                                            </ControlTemplate>
+                                        </ToggleButton.Template>
+                                    </ToggleButton>
                                 </Grid>
                             </Border>
                             <Popup x:Name="Popup" Placement="Bottom"
@@ -132,15 +150,21 @@
                                 </Border>
                             </Popup>
                         </Grid>
+                        <ControlTemplate.Triggers>
+                            <Trigger Property="IsMouseOver" Value="True">
+                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource HoverBrush}"/>
+                            </Trigger>
+                        </ControlTemplate.Triggers>
                     </ControlTemplate>
                 </Setter.Value>
             </Setter>
             <Setter Property="ItemContainerStyle">
                 <Setter.Value>
                     <Style TargetType="ComboBoxItem">
-                        <Setter Property="Foreground" Value="{DynamicResource TextBrush}"/>
-                        <Setter Property="Background" Value="{DynamicResource CardBrush}"/>
-                        <Setter Property="Padding"    Value="10,5"/>
+                        <Setter Property="Foreground"       Value="{DynamicResource TextBrush}"/>
+                        <Setter Property="Background"       Value="{DynamicResource CardBrush}"/>
+                        <Setter Property="Padding"          Value="10,5"/>
+                        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
                         <Setter Property="Template">
                             <Setter.Value>
                                 <ControlTemplate TargetType="ComboBoxItem">
@@ -154,6 +178,10 @@
                                             <Setter TargetName="Bd" Property="Background"
                                                     Value="{DynamicResource HoverBrush}"/>
                                         </Trigger>
+                                        <Trigger Property="IsSelected" Value="True">
+                                            <Setter TargetName="Bd" Property="Background"
+                                                    Value="{DynamicResource HoverBrush}"/>
+                                        </Trigger>
                                     </ControlTemplate.Triggers>
                                 </ControlTemplate>
                             </Setter.Value>

windows/App.xaml.cs

@@ -8,8 +8,12 @@ namespace ClaudeCheckerWindows;
 
 public partial class App : Application
 {
-    public static UsageViewModel ViewModel { get; } = new();
-    public static UpdateManager  Updater   { get; } = new();
+    public static UsageViewModel    ViewModel       { get; } = new();
+    public static UpdateManager     Updater         { get; } = new();
+    // Persistent hidden WebView2 — shares the same user data folder as LoginWindow
+    // so its cookies (including cf_clearance) are always live. Used on every refresh
+    // for endpoints that need a real browser session (overage, prepaid).
+    public static WebViewFetchWindow BackgroundBrowser { get; } = new();
 
     private Forms.NotifyIcon? _tray;
     private PopupWindow?      _popup;
@@ -33,11 +37,18 @@ public partial class App : Application
         base.OnStartup(e);
         ThemeManager.Initialize();
         SetupTray();
+        ShowPopup();
         ScheduleTimer(ViewModel.RefreshInterval);
 
+        // Show background browser window on the UI thread before Task.Run
+        BackgroundBrowser.Show();
+
         _ = Task.Run(async () =>
         {
-            await Task.Delay(1000);
+            await ViewModel.LoadFromCacheAsync();
+            // Initialize the persistent background browser (navigates to claude.ai once)
+            await Application.Current.Dispatcher.InvokeAsync(
+                () => BackgroundBrowser.InitAsync()).Task.Unwrap();
             await ViewModel.RefreshAsync();
             await Updater.CheckForUpdatesAsync();
         });

windows/AppSettings.cs

@@ -6,15 +6,17 @@ namespace ClaudeCheckerWindows;
 
 public class AppSettings
 {
+    // Auth signal — non-empty means the user has completed sign-in at least once.
+    // The WebView2 user-data folder holds the live session; this is only for startup.
     public string CookieStore     { get; set; } = "";
+
+    // Accumulated sparkline data — built up over multiple refreshes.
     public string BurnHistory     { get; set; } = "";
-    public string OrgId           { get; set; } = "";
-    public string Email           { get; set; } = "";
-    public string UsageJson       { get; set; } = "";
+
+    // User preferences
     public int    RefreshInterval { get; set; } = 120;
     public bool   ShowInTaskbar   { get; set; } = true;
     public bool   BetaChannel     { get; set; } = false;
-    public string DebugInfo       { get; set; } = "";
 
     private static readonly string FilePath = Path.Combine(
         Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),

windows/Controls/GaugeControl.cs

@@ -46,27 +46,16 @@ public class GaugeControl : FrameworkElement
             DrawArc(dc, cx, cy, radius, StartAngleDeg, SweepDeg * (Percent / 100.0),
                 new Pen(Accent, StrokeWidth));
 
-        var dpi = VisualTreeHelper.GetDpi(this).PixelsPerDip;
-
+        var dpi       = VisualTreeHelper.GetDpi(this).PixelsPerDip;
         var textColor = ThemeManager.IsDark ? Color.FromRgb(0xF5, 0xF5, 0xF5) : Color.FromRgb(0x1C, 0x1C, 0x1C);
-        var subColor  = Color.FromRgb(0x9E, 0x9E, 0x9E);
 
         var pctText = new FormattedText(
             $"{(int)Math.Round(Percent)}%",
             CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
             new Typeface(new FontFamily("Segoe UI"), FontStyles.Normal, FontWeights.Bold, FontStretches.Normal),
-            14, new SolidColorBrush(textColor), dpi);
-        dc.DrawText(pctText, new Point(cx - pctText.Width / 2, cy - pctText.Height - 1));
+            18, new SolidColorBrush(textColor), dpi);
 
-        var sub = new FormattedText(
-            "Updated\nnow",
-            CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
-            new Typeface("Segoe UI"), 7,
-            new SolidColorBrush(subColor), dpi)
-        {
-            TextAlignment = TextAlignment.Center
-        };
-        dc.DrawText(sub, new Point(cx - sub.Width / 2, cy + 2));
+        dc.DrawText(pctText, new Point(cx - pctText.Width / 2, cy - pctText.Height / 2));
     }
 
     private static void DrawArc(DrawingContext dc, double cx, double cy, double r,

windows/LoginWindow.xaml.cs

@@ -1,8 +1,5 @@
 using Microsoft.Web.WebView2.Core;
-using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text.Json;
 using System.Threading.Tasks;
 using System.Windows;
 
@@ -22,7 +19,7 @@ public partial class LoginWindow : Window
     {
         var env = await CoreWebView2Environment.CreateAsync(userDataFolder:
             System.IO.Path.Combine(
-                Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+                System.Environment.GetFolderPath(System.Environment.SpecialFolder.LocalApplicationData),
                 "ClaudeChecker", "WebView2"));
 
         await Browser.EnsureCoreWebView2Async(env);
@@ -35,9 +32,9 @@ public partial class LoginWindow : Window
             if (!uri.Contains("claude.ai")) return;
 
             var cookies = await Browser.CoreWebView2.CookieManager.GetCookiesAsync("https://claude.ai");
-            var signedIn = cookies.Any(c =>
-                c.Name.Equals("sessionKey", StringComparison.OrdinalIgnoreCase) ||
-                c.Name.StartsWith("sk-ant", StringComparison.OrdinalIgnoreCase));
+            var signedIn = System.Linq.Enumerable.Any(cookies, c =>
+                c.Name.Equals("sessionKey", System.StringComparison.OrdinalIgnoreCase) ||
+                c.Name.StartsWith("sk-ant",  System.StringComparison.OrdinalIgnoreCase));
 
             await Dispatcher.InvokeAsync(() =>
             {
@@ -64,85 +61,10 @@ public partial class LoginWindow : Window
         if (_closing) return;
         _closing = true;
 
+        // Persist cookies so the app knows the user is signed in on next startup.
+        // All live data is fetched by the background WebView2 on the next refresh.
         UsageViewModel.SaveCookies(cookies);
 
-        try
-        {
-            // Use WebMessageReceived so the async script can post back without relying
-            // on Promise-awaiting support in the WebView2 runtime version.
-            var tcs = new TaskCompletionSource<string?>(TaskCreationOptions.RunContinuationsAsynchronously);
-            EventHandler<CoreWebView2WebMessageReceivedEventArgs>? msgHandler = null;
-            msgHandler = (_, args) =>
-            {
-                Browser.CoreWebView2.WebMessageReceived -= msgHandler;
-                tcs.TrySetResult(args.WebMessageAsString);
-            };
-            Browser.CoreWebView2.WebMessageReceived += msgHandler;
-
-            const string script = @"(async()=>{try{
-                const h={headers:{accept:'application/json'}};
-                const b=await(await fetch('/api/bootstrap',h)).json();
-                const bkeys=Object.keys(b||{}).join(',');
-                const akeys=Object.keys(b?.account||{}).join(',');
-                let id=b?.memberships?.[0]?.organization?.uuid||b?.organizations?.[0]?.uuid
-                        ||b?.default_organization?.uuid||null;
-                const e=b?.account?.email_address||b?.account?.email||b?.email||null;
-                let orgSrc='bootstrap';
-                if(!id){
-                    try{const ol=await(await fetch('/api/organizations',h)).json();
-                        if(Array.isArray(ol)&&ol.length>0){id=ol[0]?.uuid||null;orgSrc='orgs-list';}}catch(e2){}
-                }
-                if(!id){
-                    let pu=null;
-                    try{pu=await(await fetch('/api/usage',h)).json();}catch(e3){}
-                    window.chrome.webview.postMessage(JSON.stringify({email:e,orgId:null,usage:(pu&&!pu.error?pu:null),debug:'no-org|bkeys:'+bkeys+'|akeys:'+akeys}));
-                    return;
-                }
-                const u=await(await fetch('/api/organizations/'+id+'/usage',h)).json();
-                window.chrome.webview.postMessage(JSON.stringify({email:e,orgId:id,usage:u,debug:'orgSrc:'+orgSrc+'|bkeys:'+bkeys+'|akeys:'+akeys}));
-            }catch(ex){window.chrome.webview.postMessage(JSON.stringify({error:String(ex)}));}})()";
-
-            await Browser.CoreWebView2.ExecuteScriptAsync(script);
-
-            // Wait up to 15 s for the script to post its message
-            var completed = await Task.WhenAny(tcs.Task, Task.Delay(15000));
-            var json = completed == tcs.Task ? tcs.Task.Result : null;
-
-            if (!string.IsNullOrEmpty(json))
-            {
-                using var doc = JsonDocument.Parse(json);
-                var root = doc.RootElement;
-
-                if (root.TryGetProperty("email", out var em) && em.ValueKind == JsonValueKind.String)
-                    AppSettings.Default.Email = em.GetString() ?? "";
-
-                if (root.TryGetProperty("orgId", out var oi) && oi.ValueKind == JsonValueKind.String)
-                    AppSettings.Default.OrgId = oi.GetString() ?? "";
-
-                if (root.TryGetProperty("usage", out var us) && us.ValueKind == JsonValueKind.Object)
-                    AppSettings.Default.UsageJson = us.GetRawText();
-
-                if (root.TryGetProperty("debug", out var dbg) && dbg.ValueKind == JsonValueKind.String)
-                    AppSettings.Default.DebugInfo = dbg.GetString() ?? "";
-                else if (root.TryGetProperty("error", out var err))
-                    AppSettings.Default.DebugInfo = "JS error: " + err.GetRawText();
-                else
-                    AppSettings.Default.DebugInfo = "timeout or empty message";
-
-                AppSettings.Default.Save();
-            }
-            else
-            {
-                AppSettings.Default.DebugInfo = json == null ? "script timeout (15s)" : "empty message";
-                AppSettings.Default.Save();
-            }
-        }
-        catch (Exception ex)
-        {
-            AppSettings.Default.DebugInfo = "exception: " + ex.Message;
-            AppSettings.Default.Save();
-        }
-
         await Dispatcher.InvokeAsync(() => DialogResult = true);
     }
 }

windows/Models.cs

@@ -21,8 +21,9 @@ public class AgentLimit
 
 public class UsageResponse
 {
-    [JsonPropertyName("claude_ai_default_5h")] public WindowData? FiveHour { get; set; }
-    [JsonPropertyName("claude_ai_default")]    public WindowData? SevenDay  { get; set; }
+    [JsonPropertyName("five_hour")]   public WindowData?  FiveHour   { get; set; }
+    [JsonPropertyName("seven_day")]   public WindowData?  SevenDay   { get; set; }
+    [JsonPropertyName("extra_usage")] public ExtraUsage?  ExtraUsage { get; set; }
 }
 
 public class WindowData
@@ -31,6 +32,14 @@ public class WindowData
     [JsonPropertyName("resets_at")]   public string? ResetsAt   { get; set; }
 }
 
+public class ExtraUsage
+{
+    [JsonPropertyName("is_enabled")]    public bool    IsEnabled    { get; set; }
+    [JsonPropertyName("currency")]      public string? Currency     { get; set; }
+    [JsonPropertyName("used_credits")]  public double? UsedCredits  { get; set; }
+    [JsonPropertyName("monthly_limit")] public double? MonthlyLimit { get; set; }
+}
+
 public class BootstrapResponse
 {
     [JsonPropertyName("account")] public AccountInfo? Account { get; set; }

windows/PopupWindow.xaml

@@ -150,7 +150,7 @@
                         <TextBlock Text="ABOUT" Style="{StaticResource HeaderText}" Margin="0,0,0,8"/>
                         <Border Background="{DynamicResource CardBrush}" CornerRadius="6"
                                 BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1"
-                                Padding="14,12">
+                                Padding="14,12" Margin="0,0,0,16">
                             <Grid>
                                 <Grid.ColumnDefinitions>
                                     <ColumnDefinition Width="Auto"/>
@@ -185,9 +185,18 @@
                             </Grid>
                         </Border>
 
-                        <TextBlock x:Name="DebugText" FontSize="10" Foreground="{DynamicResource SecondaryBrush}"
-                                   TextWrapping="Wrap" Margin="0,12,0,0" FontFamily="Consolas"
-                                   Visibility="Collapsed"/>
+                        <TextBlock Text="DIAGNOSTICS" Style="{StaticResource HeaderText}" Margin="0,0,0,8"/>
+                        <Border Background="{DynamicResource CardBrush}" CornerRadius="6"
+                                BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1"
+                                Padding="14,12">
+                            <StackPanel>
+                                <TextBlock Text="View app state, last request details, and stored cookies."
+                                           FontSize="11" Foreground="{DynamicResource SecondaryBrush}"
+                                           TextWrapping="Wrap" Margin="0,0,0,10"/>
+                                <Button Content="Open diagnostics" Style="{StaticResource SmallButton}"
+                                        HorizontalAlignment="Left" Click="Diagnostics_Click"/>
+                            </StackPanel>
+                        </Border>
 
                     </StackPanel>
                 </ScrollViewer>
@@ -254,5 +263,33 @@
                 </StackPanel>
             </DockPanel>
         </Border>
+
+        <!-- Diagnostics panel -->
+        <Border x:Name="DiagnosticsPanel" Visibility="Collapsed"
+                Background="{DynamicResource BackgroundBrush}">
+            <DockPanel>
+                <Border DockPanel.Dock="Top" BorderBrush="{DynamicResource BorderBrush}"
+                        BorderThickness="0,0,0,1" Background="{DynamicResource SurfaceBrush}" Padding="12,10">
+                    <Grid>
+                        <Button Content="← Back" HorizontalAlignment="Left"
+                                Style="{StaticResource SmallButton}" BorderThickness="0"
+                                Foreground="{DynamicResource BlueBrush}" Background="Transparent"
+                                Click="BackFromDiag_Click"/>
+                        <TextBlock Text="Diagnostics" FontSize="14" FontWeight="SemiBold"
+                                   Foreground="{DynamicResource TextBrush}"
+                                   HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                        <Button x:Name="CopyDiagButton" Content="Copy All" HorizontalAlignment="Right"
+                                Style="{StaticResource SmallButton}" Click="CopyDiag_Click"/>
+                    </Grid>
+                </Border>
+                <TextBlock DockPanel.Dock="Top" Text="Org IDs are redacted when copied."
+                           FontSize="10" Foreground="{DynamicResource SecondaryBrush}"
+                           Margin="14,6,14,6"/>
+                <ScrollViewer VerticalScrollBarVisibility="Auto">
+                    <StackPanel x:Name="DiagContentPanel" Margin="16,4,16,16"/>
+                </ScrollViewer>
+            </DockPanel>
+        </Border>
+
     </Grid>
 </Window>

windows/PopupWindow.xaml.cs

@@ -1,6 +1,11 @@
 using ClaudeCheckerWindows.Controls;
 using System;
+using System.Collections.Generic;
+using System.Linq;
 using System.Runtime.InteropServices;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Text.Json;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Interop;
@@ -15,7 +20,6 @@ public partial class PopupWindow : Window
     private static readonly UpdateManager  Updater = App.Updater;
     private readonly DispatcherTimer _clockTimer;
 
-
     [DllImport("dwmapi.dll")]
     private static extern int DwmSetWindowAttribute(IntPtr hwnd, int attr, ref int value, int size);
 
@@ -34,7 +38,7 @@ public partial class PopupWindow : Window
         VM.PropertyChanged      += (_, e) => Dispatcher.InvokeAsync(() => OnVmChanged(e.PropertyName));
         Updater.PropertyChanged += (_, e) => Dispatcher.InvokeAsync(() => OnUpdaterChanged(e.PropertyName));
 
-        _clockTimer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(5) };
+        _clockTimer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1) };
         _clockTimer.Tick += (_, _) => UpdateFooter();
         _clockTimer.Start();
 
@@ -55,6 +59,13 @@ public partial class PopupWindow : Window
         CardsPanel.Children.Clear();
         foreach (var limit in VM.Limits)
             CardsPanel.Children.Add(BuildCard(limit));
+
+        if (VM.ExtraUsage?.IsEnabled == true)
+            CardsPanel.Children.Add(BuildExtraUsageSection());
+
+        var fiveHour = VM.Limits.FirstOrDefault(l => l.Window == WindowKind.FiveHour);
+        if (fiveHour != null && fiveHour.BurnHistory.Count > 0)
+            CardsPanel.Children.Add(BuildDiarySection(fiveHour));
     }
 
     private static UIElement BuildCard(AgentLimit limit)
@@ -64,10 +75,8 @@ public partial class PopupWindow : Window
         var secondary = (SolidColorBrush)Application.Current.Resources["SecondaryBrush"];
         var border    = (SolidColorBrush)Application.Current.Resources["BorderBrush"];
 
-        // Gauge
         var gauge = new GaugeControl { Width = 76, Height = 76, Percent = limit.UsedPercent, Accent = accent };
 
-        // Live badge
         var liveBadge = new Border
         {
             Background   = new SolidColorBrush(Color.FromArgb(30, 0, 160, 0)),
@@ -79,7 +88,6 @@ public partial class PopupWindow : Window
                                Foreground = new SolidColorBrush(Color.FromRgb(0, 120, 0)) }
         };
 
-        // Usage badge
         var usageBadge = new Border
         {
             Background   = new SolidColorBrush(Color.FromArgb(18, 0, 0, 0)),
@@ -94,7 +102,7 @@ public partial class PopupWindow : Window
         badgeStack.Children.Add(usageBadge);
 
         var nameStack = new StackPanel { Orientation = Orientation.Horizontal, VerticalAlignment = VerticalAlignment.Center };
-        nameStack.Children.Add(new TextBlock { Text = "✦", FontSize = 11, Foreground = accent, VerticalAlignment = VerticalAlignment.Center });
+        nameStack.Children.Add(new TextBlock { Text = "✶", FontSize = 11, Foreground = accent, VerticalAlignment = VerticalAlignment.Center });
         nameStack.Children.Add(new TextBlock { Text = "Claude", FontSize = 13, FontWeight = FontWeights.SemiBold,
             Foreground = text, Margin = new Thickness(6, 0, 0, 0), VerticalAlignment = VerticalAlignment.Center });
         nameStack.Children.Add(new TextBlock { Text = $"·  {VM.PlanLabel}", FontSize = 11,
@@ -117,36 +125,64 @@ public partial class PopupWindow : Window
             BorderThickness = new Thickness(0),
         };
 
-        var timeStack = new StackPanel { Orientation = Orientation.Horizontal, VerticalAlignment = VerticalAlignment.Center };
-        timeStack.Children.Add(new TextBlock { Text = "⏱ ", FontSize = 10, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center });
-        timeStack.Children.Add(new TextBlock { Text = limit.TimeRemaining, FontSize = 12,
+        // Left: time remaining + reset date inline
+        var timeLeft = new StackPanel { Orientation = Orientation.Horizontal, VerticalAlignment = VerticalAlignment.Center };
+        timeLeft.Children.Add(new TextBlock { Text = "⏱ ", FontSize = 10, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center });
+        timeLeft.Children.Add(new TextBlock { Text = limit.TimeRemaining, FontSize = 12,
             FontWeight = FontWeights.Medium, Foreground = text, VerticalAlignment = VerticalAlignment.Center });
-
-        var resetText = new TextBlock
+        timeLeft.Children.Add(new TextBlock
         {
-            Text = $"Resets {limit.ResetDate:d MMM yyyy} at {limit.ResetDate:HH:mm}",
-            FontSize = 11, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center
-        };
+            Text = $"   Resets {limit.ResetDate:d MMM yyyy} at {limit.ResetDate:HH:mm}",
+            FontSize = 10, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center
+        });
+
+        // Right: projected limit-hit time, or "after reset" if burn rate won't reach 100% before reset.
+        // BurnRate is stored as usedPercent / windowHours, so hoursToFull = remainingPercent / BurnRate.
+        string? refreshLabel;
+        if (limit.BurnRate <= 0)
+            refreshLabel = "after reset";
+        else
+        {
+            var projectedHit = DateTime.Now.AddHours((100.0 - limit.UsedPercent) / limit.BurnRate);
+            refreshLabel = projectedHit > limit.ResetDate
+                ? "after reset"
+                : projectedHit.Date == DateTime.Today
+                    ? projectedHit.ToString("h:mm tt")
+                    : projectedHit.ToString("d MMM h:mm tt");
+        }
+
+        UIElement timeRight;
+        if (refreshLabel != null)
+        {
+            var inner = new StackPanel { Orientation = Orientation.Horizontal };
+            inner.Children.Add(new TextBlock { Text = "↗ ", FontSize = 10, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center });
+            inner.Children.Add(new TextBlock { Text = refreshLabel, FontSize = 10, FontWeight = FontWeights.Medium,
+                Foreground = secondary, VerticalAlignment = VerticalAlignment.Center });
+            timeRight = new Border
+            {
+                Background   = new SolidColorBrush(Color.FromArgb(18, 0, 0, 0)),
+                CornerRadius = new CornerRadius(4),
+                Padding      = new Thickness(6, 2, 6, 2),
+                Child        = inner
+            };
+        }
+        else
+        {
+            timeRight = new TextBlock();
+        }
 
         var timeRow = new Grid();
         timeRow.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
         timeRow.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
-        Grid.SetColumn(timeStack, 0);
-        Grid.SetColumn(resetText, 1);
-        timeRow.Children.Add(timeStack);
-        timeRow.Children.Add(resetText);
-
-        var sparkline = new SparklineControl
-        {
-            Height = 28, Margin = new Thickness(0, 8, 0, 0), LineColor = Color.FromRgb(0xF9, 0x73, 0x16),
-            Data = limit.BurnHistory.Count > 0 ? limit.BurnHistory : null,
-        };
+        Grid.SetColumn(timeLeft,  0);
+        Grid.SetColumn(timeRight, 1);
+        timeRow.Children.Add(timeLeft);
+        timeRow.Children.Add(timeRight);
 
         var infoPanel = new StackPanel { VerticalAlignment = VerticalAlignment.Center };
         infoPanel.Children.Add(headerRow);
         infoPanel.Children.Add(progress);
         infoPanel.Children.Add(timeRow);
-        infoPanel.Children.Add(sparkline);
 
         var cardGrid = new Grid { Margin = new Thickness(16, 12, 16, 12) };
         cardGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
@@ -180,12 +216,145 @@ public partial class PopupWindow : Window
         return section;
     }
 
+    private static UIElement BuildDiarySection(AgentLimit limit)
+    {
+        var secondary = (SolidColorBrush)Application.Current.Resources["SecondaryBrush"];
+        var border    = (SolidColorBrush)Application.Current.Resources["BorderBrush"];
+
+        var statsRow = new Grid { Margin = new Thickness(12, 10, 12, 6) };
+        statsRow.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
+        statsRow.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
+        var samplesText = new TextBlock
+        {
+            Text = $"{limit.BurnHistory.Count} samples",
+            FontSize = 11, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center
+        };
+        var burnText = new TextBlock
+        {
+            Text = $"Avg burn rate: {limit.BurnRate:F1}%/h",
+            FontSize = 11, Foreground = secondary, VerticalAlignment = VerticalAlignment.Center
+        };
+        Grid.SetColumn(samplesText, 0);
+        Grid.SetColumn(burnText,    1);
+        statsRow.Children.Add(samplesText);
+        statsRow.Children.Add(burnText);
+
+        var sparkline = new SparklineControl
+        {
+            Height    = 40,
+            Margin    = new Thickness(8, 0, 8, 8),
+            LineColor = Color.FromRgb(0xF9, 0x73, 0x16),
+            Data      = limit.BurnHistory,
+        };
+
+        var cardContent = new StackPanel();
+        cardContent.Children.Add(statsRow);
+        cardContent.Children.Add(sparkline);
+
+        var card = new Border
+        {
+            Background      = (SolidColorBrush)Application.Current.Resources["CardBrush"],
+            CornerRadius    = new CornerRadius(6),
+            BorderBrush     = border,
+            BorderThickness = new Thickness(1),
+            Margin          = new Thickness(12, 0, 12, 0),
+            Child           = cardContent,
+        };
+
+        var sectionLabel = new TextBlock
+        {
+            Text   = "SESSION DIARY",
+            Style  = (Style)Application.Current.Resources["HeaderText"],
+            Margin = new Thickness(16, 12, 16, 6),
+        };
+
+        var section = new StackPanel();
+        section.Children.Add(sectionLabel);
+        section.Children.Add(card);
+        return section;
+    }
+
+    private UIElement BuildExtraUsageSection()
+    {
+        var text      = (SolidColorBrush)Application.Current.Resources["TextBrush"];
+        var secondary = (SolidColorBrush)Application.Current.Resources["SecondaryBrush"];
+        var border    = (SolidColorBrush)Application.Current.Resources["BorderBrush"];
+        var accent    = new SolidColorBrush(Color.FromRgb(0xF9, 0x73, 0x16));
+
+        var overage  = VM.Overage;
+        var prepaid  = VM.Prepaid;
+        var currency = VM.ExtraUsage?.Currency ?? overage?.Currency ?? "$";
+
+        var spent   = (overage?.UsedCredits        / 100.0) ?? (VM.ExtraUsage?.UsedCredits  / 100.0) ?? 0;
+        var limit   = (overage?.MonthlyCreditLimit / 100.0) ?? (VM.ExtraUsage?.MonthlyLimit / 100.0) ?? 0;
+        var balance = (prepaid?.Amount             / 100.0) ?? 0;
+
+        bool unlimited = overage?.MonthlyCreditLimit == null && VM.ExtraUsage?.MonthlyLimit == null;
+
+        UIElement MakeRow(string label, string value, bool highlight = false)
+        {
+            var row = new Grid { Margin = new Thickness(0, 3, 0, 3) };
+            row.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
+            row.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
+            var lbl = new TextBlock { Text = label, FontSize = 12, Foreground = secondary };
+            var val = new TextBlock { Text = value, FontSize = 12, FontWeight = FontWeights.Medium,
+                                      Foreground = highlight ? new SolidColorBrush(Color.FromRgb(0x4C, 0xAF, 0x50)) : text };
+            Grid.SetColumn(lbl, 0);
+            Grid.SetColumn(val, 1);
+            row.Children.Add(lbl);
+            row.Children.Add(val);
+            return row;
+        }
+
+        var contentPanel = new StackPanel { Margin = new Thickness(12, 10, 12, 10) };
+        contentPanel.Children.Add(MakeRow("Spent",   $"{currency} {spent:F2}", spent > 0));
+        if (unlimited)      contentPanel.Children.Add(MakeRow("Limit",   "Unlimited"));
+        else if (limit > 0) contentPanel.Children.Add(MakeRow("Limit",   $"{currency} {limit:F2}"));
+        if (balance > 0)    contentPanel.Children.Add(MakeRow("Balance", $"{currency} {balance:F2}"));
+
+        if (limit > 0)
+        {
+            var pct = Math.Min(spent / limit * 100, 100);
+            contentPanel.Children.Add(new ProgressBar
+            {
+                Value           = pct, Maximum = 100, Height = 4,
+                Margin          = new Thickness(0, 6, 0, 0),
+                Foreground      = accent,
+                Background      = new SolidColorBrush(Color.FromArgb(20, 0, 0, 0)),
+                BorderThickness = new Thickness(0),
+            });
+        }
+
+        var card = new Border
+        {
+            Background      = (SolidColorBrush)Application.Current.Resources["CardBrush"],
+            CornerRadius    = new CornerRadius(6),
+            BorderBrush     = border,
+            BorderThickness = new Thickness(1),
+            Margin          = new Thickness(12, 0, 12, 0),
+            Child           = contentPanel,
+        };
+
+        var sectionLabel = new TextBlock
+        {
+            Text   = "EXTRA USAGE CREDITS",
+            Style  = (Style)Application.Current.Resources["HeaderText"],
+            Margin = new Thickness(16, 12, 16, 6),
+        };
+
+        var section = new StackPanel();
+        section.Children.Add(sectionLabel);
+        section.Children.Add(card);
+        return section;
+    }
+
     // ── State updates ────────────────────────────────────────────────
 
     private void OnVmChanged(string? prop)
     {
         if (prop is nameof(UsageViewModel.Limits) or nameof(UsageViewModel.IsLoading)
-                 or nameof(UsageViewModel.LastUpdated) or nameof(UsageViewModel.ErrorMessage))
+                 or nameof(UsageViewModel.LastUpdated) or nameof(UsageViewModel.ErrorMessage)
+                 or nameof(UsageViewModel.ExtraUsage) or nameof(UsageViewModel.Overage) or nameof(UsageViewModel.Prepaid))
         {
             RebuildCards();
             UpdateFooter();
@@ -238,8 +407,14 @@ public partial class PopupWindow : Window
         if (VM.LastUpdated.HasValue)
         {
             var diff = DateTime.Now - VM.LastUpdated.Value;
-            LastUpdatedText.Text = diff.TotalSeconds < 10 ? "Updated just now"
-                                                          : $"Updated {(int)diff.TotalSeconds}s ago";
+            string age;
+            if (diff.TotalSeconds < 10)
+                age = "just now";
+            else if (diff.TotalMinutes < 1)
+                age = $"{(int)diff.TotalSeconds} sec ago";
+            else
+                age = $"{(int)diff.TotalMinutes} min, {diff.Seconds} sec ago";
+            LastUpdatedText.Text = $"Updated {age}";
         }
         else
         {
@@ -250,18 +425,33 @@ public partial class PopupWindow : Window
 
     // ── Settings ─────────────────────────────────────────────────────
 
+    private static readonly (string Label, int Seconds)[] RefreshIntervals =
+    [
+        ("1 min",  60),
+        ("2 min",  120),
+        ("3 min",  180),
+        ("4 min",  240),
+        ("5 min",  300),
+        ("10 min", 600),
+    ];
+
     private void InitSettings()
     {
         VersionLabel.Text    = $"v{Updater.CurrentVersion}";
         BetaToggle.IsChecked = Updater.BetaChannel;
         UpdateAboutSection();
 
-        var intervals = new[] { ("1 min", 60), ("2 min", 120), ("3 min", 180),
-                                ("4 min", 240), ("5 min", 300), ("10 min", 600) };
-        RefreshPicker.ItemsSource        = intervals;
-        RefreshPicker.DisplayMemberPath  = "Item1";
-        var idx = Array.FindIndex(intervals, x => x.Item2 == VM.RefreshInterval);
-        RefreshPicker.SelectedIndex      = idx < 0 ? 1 : idx;
+        RefreshPicker.SelectionChanged -= RefreshPicker_Changed;
+        RefreshPicker.Items.Clear();
+        int selectIdx = 1;
+        for (int i = 0; i < RefreshIntervals.Length; i++)
+        {
+            var (label, seconds) = RefreshIntervals[i];
+            RefreshPicker.Items.Add(new ComboBoxItem { Content = label, Tag = seconds });
+            if (seconds == VM.RefreshInterval) selectIdx = i;
+        }
+        RefreshPicker.SelectedIndex = selectIdx;
+        RefreshPicker.SelectionChanged += RefreshPicker_Changed;
 
         AuthPanel.Children.Clear();
         var dot = new System.Windows.Shapes.Ellipse
@@ -270,49 +460,208 @@ public partial class PopupWindow : Window
             Fill = VM.IsSignedIn ? Brushes.LimeGreen : Brushes.Orange,
             VerticalAlignment = VerticalAlignment.Center,
         };
-        var label = new TextBlock
+        var label2 = new TextBlock
         {
             Text = VM.IsSignedIn ? $"Signed in — {VM.UserEmail}" : "Not signed in",
-            FontSize = 13, FontWeight = FontWeights.SemiBold, Foreground = (SolidColorBrush)Application.Current.Resources["TextBrush"],
+            FontSize = 13, FontWeight = FontWeights.SemiBold,
+            Foreground = (SolidColorBrush)Application.Current.Resources["TextBrush"],
             VerticalAlignment = VerticalAlignment.Center,
         };
         var authRow = new StackPanel { Orientation = Orientation.Horizontal };
         authRow.Children.Add(dot);
-        authRow.Children.Add(label);
+        authRow.Children.Add(label2);
         AuthPanel.Children.Add(authRow);
 
         SignOutButton.Visibility = VM.IsSignedIn ? Visibility.Visible : Visibility.Collapsed;
         SignInButton.Content     = VM.IsSignedIn ? "Re-authenticate" : "Sign In";
+    }
 
-        var dbg = AppSettings.Default.DebugInfo;
-        if (!string.IsNullOrEmpty(dbg))
+    // ── Diagnostics ──────────────────────────────────────────────────
+
+    private void Diagnostics_Click(object s, RoutedEventArgs e)
+    {
+        RebuildDiag();
+        MainPanel.Visibility        = Visibility.Collapsed;
+        SettingsPanel.Visibility    = Visibility.Collapsed;
+        UpdatePanel.Visibility      = Visibility.Collapsed;
+        DiagnosticsPanel.Visibility = Visibility.Visible;
+    }
+
+    private void BackFromDiag_Click(object s, RoutedEventArgs e)
+    {
+        DiagnosticsPanel.Visibility = Visibility.Collapsed;
+        SettingsPanel.Visibility    = Visibility.Visible;
+    }
+
+    private void CopyDiag_Click(object s, RoutedEventArgs e)
+    {
+        var diagText = BuildDiagText();
+        for (int i = 0; i < 5; i++)
         {
-            DebugText.Text       = dbg;
-            DebugText.Visibility = Visibility.Visible;
+            try { Clipboard.SetText(diagText); break; }
+            catch (Exception) { System.Threading.Thread.Sleep(100); }
+        }
+        CopyDiagButton.Content = "Copied! (IDs redacted)";
+        var t = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1.5) };
+        t.Tick += (_, _) => { CopyDiagButton.Content = "Copy All"; t.Stop(); };
+        t.Start();
+    }
+
+    private void RebuildDiag()
+    {
+        DiagContentPanel.Children.Clear();
+        var secondary = (SolidColorBrush)Application.Current.Resources["SecondaryBrush"];
+        var border    = (SolidColorBrush)Application.Current.Resources["BorderBrush"];
+        var text      = (SolidColorBrush)Application.Current.Resources["TextBrush"];
+
+        FrameworkElement MakeRow(string label, string value)
+        {
+            var grid = new Grid { Margin = new Thickness(0, 3, 0, 3) };
+            grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(110) });
+            grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
+            var lbl = new TextBlock
+            {
+                Text = label, FontSize = 11, Foreground = secondary,
+                VerticalAlignment = VerticalAlignment.Top,
+            };
+            var val = new TextBlock
+            {
+                Text = value, FontSize = 11, FontFamily = new FontFamily("Consolas"),
+                Foreground = text, TextWrapping = TextWrapping.Wrap,
+            };
+            Grid.SetColumn(lbl, 0);
+            Grid.SetColumn(val, 1);
+            grid.Children.Add(lbl);
+            grid.Children.Add(val);
+            return grid;
+        }
+
+        void AddSection(string title, IEnumerable<FrameworkElement> rows)
+        {
+            DiagContentPanel.Children.Add(new TextBlock
+            {
+                Text = title, Style = (Style)Application.Current.Resources["HeaderText"],
+                Margin = new Thickness(0, 12, 0, 6),
+            });
+            var panel = new StackPanel { Margin = new Thickness(12, 10, 12, 10) };
+            foreach (var row in rows) panel.Children.Add(row);
+            DiagContentPanel.Children.Add(new Border
+            {
+                Background      = (SolidColorBrush)Application.Current.Resources["CardBrush"],
+                CornerRadius    = new CornerRadius(6),
+                BorderBrush     = border, BorderThickness = new Thickness(1),
+                Child           = panel,
+            });
+        }
+
+        // APP
+        AddSection("APP",
+        [
+            MakeRow("Version",       Updater.CurrentVersion),
+            MakeRow("Signed in",     VM.IsSignedIn ? "Yes" : "No"),
+            MakeRow("Org ID",        string.IsNullOrEmpty(VM.DiagOrgId)          ? "(none)"     : VM.DiagOrgId),
+            MakeRow("lastActiveOrg", string.IsNullOrEmpty(VM.DiagLastActiveOrg)  ? "(not read)" : VM.DiagLastActiveOrg),
+            MakeRow("Error",         VM.ErrorMessage ?? "(none)"),
+        ]);
+
+        // LAST REQUEST
+        var reqRows = new List<FrameworkElement>
+        {
+            MakeRow("Path",   string.IsNullOrEmpty(VM.DiagLastPath)  ? "(none)" : VM.DiagLastPath),
+            MakeRow("Status", VM.DiagLastStatus == 0 ? "(none)" : VM.DiagLastStatus.ToString()),
+            MakeRow("Error",  string.IsNullOrEmpty(VM.DiagLastError) ? "(none)" : VM.DiagLastError),
+        };
+        if (VM.DiagLastFetch.HasValue)
+            reqRows.Add(MakeRow("Time", VM.DiagLastFetch.Value.ToString("HH:mm:ss")));
+        AddSection("LAST REQUEST", reqRows);
+
+        // STORED COOKIE NAMES
+        var storedNames = GetStoredCookieNames();
+        var nameRows = new List<FrameworkElement>();
+        if (storedNames.Count == 0)
+        {
+            nameRows.Add(MakeRow("(none)", ""));
         }
         else
         {
-            DebugText.Visibility = Visibility.Collapsed;
+            var claudeC = storedNames.Where(c =>
+                c.Domain.Contains("claude.ai") || c.Domain.Contains("anthropic.com")).ToList();
+            var otherC  = storedNames.Where(c =>
+                !c.Domain.Contains("claude.ai") && !c.Domain.Contains("anthropic.com")).ToList();
+            foreach (var c in claudeC)
+                nameRows.Add(MakeRow(c.Domain, c.Name));
+            if (otherC.Count > 0)
+                nameRows.Add(MakeRow($"other ({otherC.Count})",
+                    string.Join(", ", otherC.Take(5).Select(c => c.Name))));
         }
+        AddSection("STORED COOKIE NAMES", nameRows);
     }
 
+    private static List<(string Name, string Domain)> GetStoredCookieNames()
+    {
+        try
+        {
+            var raw = AppSettings.Default.CookieStore;
+            if (string.IsNullOrEmpty(raw)) return [];
+            using var doc = JsonDocument.Parse(raw);
+            var list = new List<(string Name, string Domain)>();
+            foreach (var elem in doc.RootElement.EnumerateArray())
+            {
+                var name   = elem.TryGetProperty("Name",   out var n) ? n.GetString() ?? "" : "";
+                var domain = elem.TryGetProperty("Domain", out var d) ? d.GetString() ?? "" : "";
+                list.Add((name, domain));
+            }
+            return list;
+        }
+        catch { return []; }
+    }
+
+    private static string BuildDiagText()
+    {
+        var storedNames = GetStoredCookieNames();
+        var sb = new StringBuilder();
+        sb.AppendLine("=== ClaudeChecker Diagnostics (Windows) ===");
+        sb.AppendLine($"Version: {Updater.CurrentVersion}");
+        sb.AppendLine($"Signed in: {(VM.IsSignedIn ? "Yes" : "No")}");
+        sb.AppendLine($"Org ID: {(string.IsNullOrEmpty(VM.DiagOrgId) ? "(none)" : VM.DiagOrgId)}");
+        sb.AppendLine($"lastActiveOrg: {(string.IsNullOrEmpty(VM.DiagLastActiveOrg) ? "(not read)" : VM.DiagLastActiveOrg)}");
+        sb.AppendLine($"Error: {VM.ErrorMessage ?? "(none)"}");
+        sb.AppendLine();
+        sb.AppendLine($"Last path: {VM.DiagLastPath}");
+        sb.AppendLine($"Last status: {VM.DiagLastStatus}");
+        sb.AppendLine($"Last error: {(string.IsNullOrEmpty(VM.DiagLastError) ? "(none)" : VM.DiagLastError)}");
+        if (VM.DiagLastFetch.HasValue)
+            sb.AppendLine($"Last fetch: {VM.DiagLastFetch.Value:HH:mm:ss}");
+        sb.AppendLine();
+        sb.AppendLine();
+        sb.AppendLine("Stored cookies:");
+        foreach (var c in storedNames)
+            sb.AppendLine($"  {c.Domain}  {c.Name}");
+        return RedactUUIDs(sb.ToString());
+    }
+
+    private static string RedactUUIDs(string text) =>
+        Regex.Replace(text, @"[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}", "****");
+
     // ── Event handlers ───────────────────────────────────────────────
 
     private void Settings_Click(object s, RoutedEventArgs e)
     {
         InitSettings();
-        MainPanel.Visibility     = Visibility.Collapsed;
-        SettingsPanel.Visibility = Visibility.Visible;
-        UpdatePanel.Visibility   = Visibility.Collapsed;
+        MainPanel.Visibility        = Visibility.Collapsed;
+        SettingsPanel.Visibility    = Visibility.Visible;
+        UpdatePanel.Visibility      = Visibility.Collapsed;
+        DiagnosticsPanel.Visibility = Visibility.Collapsed;
     }
 
     private void BackFromSettings_Click(object s, RoutedEventArgs e) => ShowMain();
 
     private void ShowMain()
     {
-        MainPanel.Visibility     = Visibility.Visible;
-        SettingsPanel.Visibility = Visibility.Collapsed;
-        UpdatePanel.Visibility   = Visibility.Collapsed;
+        MainPanel.Visibility        = Visibility.Visible;
+        SettingsPanel.Visibility    = Visibility.Collapsed;
+        UpdatePanel.Visibility      = Visibility.Collapsed;
+        DiagnosticsPanel.Visibility = Visibility.Collapsed;
     }
 
     private async void Refresh_Click(object s, RoutedEventArgs e) => await VM.RefreshAsync();
@@ -324,9 +673,10 @@ public partial class PopupWindow : Window
         CurrentVerLabel.Text  = $"v{Updater.CurrentVersion}";
         NewVerLabel.Text      = $"v{Updater.LatestVersion}";
         ReleaseNotesText.Text = Updater.ReleaseNotes;
-        MainPanel.Visibility     = Visibility.Collapsed;
-        SettingsPanel.Visibility = Visibility.Collapsed;
-        UpdatePanel.Visibility   = Visibility.Visible;
+        MainPanel.Visibility        = Visibility.Collapsed;
+        SettingsPanel.Visibility    = Visibility.Collapsed;
+        UpdatePanel.Visibility      = Visibility.Visible;
+        DiagnosticsPanel.Visibility = Visibility.Collapsed;
     }
 
     private void CloseUpdate_Click(object s, RoutedEventArgs e) => ShowMain();
@@ -344,12 +694,10 @@ public partial class PopupWindow : Window
         var login = new LoginWindow { Owner = this };
         if (login.ShowDialog() == true)
         {
-            // Show cached data from SaveAndClose immediately (no WebView2 needed)
             await VM.LoadFromCacheAsync();
             InitSettings();
             ShowMain();
 
-            // Full refresh in background after WebView2 folder is definitely released
             _ = Task.Run(async () =>
             {
                 await Task.Delay(3000);
@@ -375,10 +723,10 @@ public partial class PopupWindow : Window
 
     private void RefreshPicker_Changed(object s, SelectionChangedEventArgs e)
     {
-        if (RefreshPicker.SelectedItem is ValueTuple<string, int> selected)
+        if (RefreshPicker.SelectedItem is ComboBoxItem item && item.Tag is int seconds)
         {
-            VM.RefreshInterval = selected.Item2;
-            ((App)Application.Current).ScheduleTimer(selected.Item2);
+            VM.RefreshInterval = seconds;
+            ((App)Application.Current).ScheduleTimer(seconds);
         }
     }
 

windows/RELEASE_NOTES.md

@@ -1,4 +1,23 @@
-## What's new in beta.26
+## What's new in beta.49
 
-- Fixed: script results now use window.chrome.webview.postMessage instead of async IIFE return value — older WebView2 runtimes don't await Promises from ExecuteScriptAsync, so data was never received
-- Debug text in Settings will now always show what happened during sign-in
+### Architecture
+- All data (usage, plan, overage, prepaid credits) now fetched via the persistent background WebView2 — the same always-live session as the macOS app, so Cloudflare cookies never expire between refreshes
+- HttpClient path kept only as a brief startup fallback before the browser is ready
+- Settings file simplified: only stores session signal, burn history, and user preferences — no more cached API responses
+
+### Bug fixes
+- Plan label (e.g. "Pro") now updates on every refresh, not just at login
+- Extra Usage Credits values now correct (were 100× too large)
+- Limit and balance now update live on every refresh
+- Refresh interval dropdown now shows "1 min", "2 min" etc. correctly
+- ComboBox no longer flashes bright blue when clicked
+- Buttons now show a visible pressed state
+- Footer "Updated X ago" counter now ticks every second; shows "X min, Y sec ago" past 60 s
+- Removed stray sparkline bars from the 5 h and 7 d limit cards
+- App window now shown on launch
+
+### UI improvements
+- Gauge percentage larger, "used" label removed
+- Each limit card now shows an "after reset" or "today HH:MM" badge
+- Session Diary card redesigned to match macOS layout (stats row + sparkline, no Claude header)
+- Reset date moved inline with time remaining

windows/UpdateManager.cs

@@ -2,7 +2,6 @@ using System;
 using System.Diagnostics;
 using System.Reflection;
 using System.IO;
-using System.IO.Compression;
 using System.Net.Http;
 using System.Text.Json;
 using System.Threading.Tasks;
@@ -136,9 +135,7 @@ public class UpdateManager : INotifyPropertyChanged
 
         try
         {
-            var tmpDir  = Path.Combine(Path.GetTempPath(), $"CCUpdate_{Guid.NewGuid():N}");
-            Directory.CreateDirectory(tmpDir);
-            var zipPath = Path.Combine(tmpDir, "ClaudeChecker.zip");
+            var installerPath = Path.Combine(Path.GetTempPath(), $"ClaudeCheckerInstaller_{Guid.NewGuid():N}.exe");
 
             using var http = new HttpClient();
             var response   = await http.GetAsync(DownloadUrl, HttpCompletionOption.ResponseHeadersRead);
@@ -148,7 +145,7 @@ public class UpdateManager : INotifyPropertyChanged
             var received = 0L;
 
             await using (var stream = await response.Content.ReadAsStreamAsync())
-            await using (var file   = File.Create(zipPath))
+            await using (var file   = File.Create(installerPath))
             {
                 var buffer = new byte[81920];
                 int read;
@@ -157,48 +154,21 @@ public class UpdateManager : INotifyPropertyChanged
                     await file.WriteAsync(buffer.AsMemory(0, read));
                     received += read;
                     if (total > 0)
-                        DownloadProgress = (double)received / total * 0.8;
+                        DownloadProgress = (double)received / total;
                 }
             }
 
-            StatusMessage    = "Unpacking…";
-            DownloadProgress = 0.85;
-
-            var extractDir = Path.Combine(tmpDir, "extracted");
-            ZipFile.ExtractToDirectory(zipPath, extractDir, overwriteFiles: true);
-
-            // Find the installer exe
-            var newExe = FindExe(extractDir);
-            if (newExe == null) throw new Exception("ClaudeChecker.exe not found in update package.");
-
-            DownloadProgress = 0.95;
-            StatusMessage    = "Installing…";
-
-            // Write a batch script to replace the exe after we exit
-            var currentExe = Process.GetCurrentProcess().MainModule!.FileName;
-            var script = $"""
-                @echo off
-                timeout /t 2 /nobreak > nul
-                copy /Y "{newExe}" "{currentExe}"
-                start "" "{currentExe}"
-                rmdir /S /Q "{tmpDir}"
-                """;
-
-            var scriptPath = Path.Combine(Path.GetTempPath(), "claudechecker_update.bat");
-            await File.WriteAllTextAsync(scriptPath, script);
-
             DownloadProgress = 1.0;
-            StatusMessage    = "Installed! Relaunching…";
+            StatusMessage    = "Installing…";
             UpdateComplete   = true;
 
-            await Task.Delay(800);
+            await Task.Delay(500);
 
             Process.Start(new ProcessStartInfo
             {
-                FileName        = "cmd.exe",
-                Arguments       = $"/C \"{scriptPath}\"",
-                CreateNoWindow  = true,
-                UseShellExecute = false,
+                FileName        = installerPath,
+                Arguments       = "/SILENT /CLOSEAPPLICATIONS",
+                UseShellExecute = true,
             });
 
             Application.Current.Dispatcher.Invoke(() => Application.Current.Shutdown());
@@ -211,13 +181,6 @@ public class UpdateManager : INotifyPropertyChanged
         }
     }
 
-    private static string? FindExe(string dir)
-    {
-        foreach (var f in Directory.EnumerateFiles(dir, "ClaudeChecker.exe", SearchOption.AllDirectories))
-            return f;
-        return null;
-    }
-
     public static bool IsNewer(string version, string current)
     {
         static (int[] Base, int[]? Pre) Parse(string v)

windows/UsageViewModel.cs

@@ -20,10 +20,11 @@ public class UsageViewModel : INotifyPropertyChanged
     private string? _errorMessage;
     private bool _isSignedIn;
     private string _userEmail = "";
-    private string _planLabel = "Pro";
+    private string _planLabel = "Claude";
     private DateTime? _lastUpdated;
     private OverageSpendLimit? _overage;
     private PrepaidCredits? _prepaid;
+    private ExtraUsage? _extraUsage;
 
     private readonly Dictionary<string, List<double>> _burnHistory = [];
     private const int MaxHistorySamples = 24;
@@ -37,6 +38,18 @@ public class UsageViewModel : INotifyPropertyChanged
     public DateTime? LastUpdated            { get => _lastUpdated;  set => Set(ref _lastUpdated, value); }
     public OverageSpendLimit? Overage       { get => _overage;      set => Set(ref _overage, value); }
     public PrepaidCredits? Prepaid          { get => _prepaid;      set => Set(ref _prepaid, value); }
+    public ExtraUsage? ExtraUsage           { get => _extraUsage;   set => Set(ref _extraUsage, value); }
+
+    // Diagnostics — updated after each refresh, read by DiagnosticsPanel on demand
+    public string       DiagLastActiveOrg     { get; private set; } = "";
+    public string       DiagOrgId             { get; private set; } = "";
+    public string       DiagLastPath          { get; private set; } = "";
+    public int          DiagLastStatus        { get; private set; }
+    public string       DiagLastError         { get; private set; } = "";
+    public int          DiagCookieCount       { get; private set; }
+    public int          DiagClaudeCookieCount { get; private set; }
+    public List<string> DiagCookieDomains     { get; private set; } = [];
+    public DateTime?    DiagLastFetch         { get; private set; }
 
     private int _refreshInterval = 120;
     public int RefreshInterval
@@ -75,16 +88,13 @@ public class UsageViewModel : INotifyPropertyChanged
     {
         await Application.Current.Dispatcher.InvokeAsync(() => IsLoading = true);
 
+        // Snapshot stored cookies once — used for both diag and HttpClient fallback path.
+        var storedCookies = await GetCookiesAsync();
+
         try
         {
-            var cookies = await GetCookiesAsync();
-
-            // Check if we have any persistent proof that the user authenticated
-            bool hasCookies    = cookies.Count > 0;
-            bool hasCachedAuth = !string.IsNullOrEmpty(AppSettings.Default.Email) ||
-                                 !string.IsNullOrEmpty(AppSettings.Default.OrgId);
-
-            if (!hasCookies && !hasCachedAuth)
+            // CookieStore being non-empty is our signal that the user has signed in.
+            if (string.IsNullOrEmpty(AppSettings.Default.CookieStore))
             {
                 await Application.Current.Dispatcher.InvokeAsync(() =>
                 {
@@ -95,27 +105,42 @@ public class UsageViewModel : INotifyPropertyChanged
                 return;
             }
 
-            // Try HttpClient first (fast path) — may be rejected by server CORS/header checks
-            var (limits, overage, prepaid, email, orgId, ok) = hasCookies
-                ? await TryHttpRefreshAsync(cookies)
-                : ([], null, null, null, null, false);
+            List<AgentLimit> limits    = [];
+            OverageSpendLimit? overage = null;
+            PrepaidCredits?    prepaid = null;
+            ExtraUsage?     extraUsage = null;
+            string? email = null, orgId = null, planLabel = null;
+            string? refreshError = null;
 
-            // Fall back to WebView2 (uses the shared browser session, not HttpClient)
-            if (!ok)
-                (limits, email, orgId) = await TryWebView2RefreshAsync();
-
-            // Fill in any blanks from cached values saved at login time
-            if (string.IsNullOrEmpty(email))  email  = AppSettings.Default.Email;
-            if (string.IsNullOrEmpty(orgId))  orgId  = AppSettings.Default.OrgId;
-            if (limits.Count == 0 && !string.IsNullOrEmpty(AppSettings.Default.UsageJson))
+            // Primary: persistent background WebView2 — always-live cookies, same as macOS.
+            // Fallback: HttpClient with saved cookies, only if the browser isn't ready yet
+            // (the brief window while InitAsync is still navigating at startup).
+            if (App.BackgroundBrowser.IsReady)
             {
                 try
                 {
-                    var cached = System.Text.Json.JsonSerializer.Deserialize<UsageResponse>(
-                        AppSettings.Default.UsageJson, JsonOpts);
-                    limits = BuildLimits(cached);
+                    (limits, overage, prepaid, extraUsage, email, orgId, planLabel) =
+                        await TryBrowserRefreshAsync();
+                }
+                catch (Exception ex)
+                {
+                    refreshError = ex.Message;
+                }
+            }
+            else
+            {
+                if (storedCookies.Count > 0)
+                {
+                    try
+                    {
+                        (limits, overage, prepaid, extraUsage, email, orgId, planLabel, _) =
+                            await TryHttpRefreshAsync(storedCookies);
+                    }
+                    catch (Exception ex)
+                    {
+                        refreshError = ex.Message;
+                    }
                 }
-                catch { }
             }
 
             foreach (var limit in limits)
@@ -131,16 +156,29 @@ public class UsageViewModel : INotifyPropertyChanged
 
             await Application.Current.Dispatcher.InvokeAsync(() =>
             {
-                Limits       = limits;
-                Overage      = overage;
-                Prepaid      = prepaid;
-                if (!string.IsNullOrEmpty(email)) UserEmail = email;
-                // Trust that cookies / cached auth mean the user IS signed in,
-                // even if the live fetch failed this cycle.
+                if (limits.Count > 0)
+                {
+                    Limits    = limits;
+                    Overage   = overage;
+                    Prepaid   = prepaid;
+                    if (extraUsage != null) ExtraUsage = extraUsage;
+                }
+                if (!string.IsNullOrEmpty(planLabel)) PlanLabel = planLabel;
+                if (!string.IsNullOrEmpty(email))     UserEmail = email;
                 IsSignedIn   = true;
-                ErrorMessage = null;
+                ErrorMessage = refreshError;
                 LastUpdated  = DateTime.Now;
                 IsLoading    = false;
+
+                // Update diagnostics
+                if (!string.IsNullOrEmpty(orgId)) DiagOrgId = orgId;
+                DiagLastFetch         = DateTime.Now;
+                DiagLastError         = refreshError ?? "";
+                DiagCookieCount       = storedCookies.Count;
+                DiagClaudeCookieCount = storedCookies.Count(c =>
+                    c.Domain.Contains("claude.ai") || c.Domain.Contains("anthropic.com"));
+                DiagCookieDomains     = storedCookies
+                    .Select(c => c.Domain).Distinct().OrderBy(d => d).ToList();
             });
         }
         catch (Exception ex)
@@ -153,144 +191,157 @@ public class UsageViewModel : INotifyPropertyChanged
         }
     }
 
-    private async Task<(List<AgentLimit>, OverageSpendLimit?, PrepaidCredits?, string?, string?, bool)>
+    // ── Browser-based refresh (primary) ───────────────────────────────────────
+    // Runs JS on the persistent claude.ai page. Same live cookies as macOS WKWebView.
+
+    private async Task<(List<AgentLimit>, OverageSpendLimit?, PrepaidCredits?, ExtraUsage?, string?, string?, string?)>
+        TryBrowserRefreshAsync()
+    {
+        // Read lastActiveOrg from document.cookie — the only reliable org source when the
+        // user belongs to multiple orgs. memberships[0] is always the "Individual Org" and
+        // would return 403 on usage endpoints if the paid plan is on a different org.
+        const string script = @"(async()=>{try{
+            const h={headers:{accept:'application/json'}};
+            const b=await(await fetch('/api/bootstrap',h)).json();
+            if(b?.error_type==='authentication_error'){window.chrome.webview.postMessage({authError:true});return;}
+            const lastActiveOrg=(document.cookie.split(';').map(c=>c.trim().split('=')).find(p=>p[0]==='lastActiveOrg')||[])[1]||null;
+            const allOrgs=(b?.account?.memberships||b?.memberships||[]).map(m=>m?.organization).filter(Boolean);
+            const activeOrg=(lastActiveOrg?allOrgs.find(o=>o?.uuid===lastActiveOrg):null)||allOrgs[0];
+            let id=activeOrg?.uuid||b?.organizations?.[0]?.uuid||null;
+            const email=b?.account?.email_address||b?.account?.email||null;
+            const caps=activeOrg?.capabilities||[];
+            const capStr=caps.find(c=>typeof c==='string'&&c.startsWith('claude_'))||null;
+            const planLabel=capStr?(capStr.slice(7,8).toUpperCase()+capStr.slice(8).toLowerCase()):null;
+            if(!id){
+                try{const ol=await(await fetch('/api/organizations',h)).json();
+                    if(Array.isArray(ol)&&ol.length>0)id=ol[0]?.uuid||null;}catch(e2){}
+            }
+            if(!id){window.chrome.webview.postMessage({noOrg:true,email});return;}
+            const [u,ov,pp]=await Promise.all([
+                fetch('/api/organizations/'+id+'/usage',h).then(r=>r.json()),
+                fetch('/api/organizations/'+id+'/overage_spend_limit',h).then(r=>r.ok?r.json():null).catch(()=>null),
+                fetch('/api/organizations/'+id+'/prepaid/credits',h).then(r=>r.ok?r.json():null).catch(()=>null)
+            ]);
+            window.chrome.webview.postMessage({email,orgId:id,planLabel,lastActiveOrg,usage:u,overage:ov,prepaid:pp});
+        }catch(ex){window.chrome.webview.postMessage({error:String(ex)});}})()";
+
+        var json = await Application.Current.Dispatcher.InvokeAsync(
+            () => App.BackgroundBrowser.RunScriptAsync(script)).Task.Unwrap();
+
+        if (string.IsNullOrEmpty(json) || json == "null")
+            throw new Exception("Browser refresh returned no data.");
+
+        using var doc = JsonDocument.Parse(json);
+        var root = doc.RootElement;
+
+        if (root.TryGetProperty("authError", out _))
+            throw new Exception("Session expired — please re-authenticate.");
+        if (root.TryGetProperty("error", out var errEl))
+            throw new Exception("Browser script error: " + errEl.GetString());
+        if (root.TryGetProperty("noOrg", out _))
+            throw new Exception("Could not determine organization ID.");
+
+        string? email     = root.TryGetProperty("email",     out var em) && em.ValueKind == JsonValueKind.String ? em.GetString() : null;
+        string? orgId     = root.TryGetProperty("orgId",     out var oi) && oi.ValueKind == JsonValueKind.String ? oi.GetString() : null;
+        string? planLabel = root.TryGetProperty("planLabel", out var pl) && pl.ValueKind == JsonValueKind.String ? pl.GetString() : null;
+        string? lao       = root.TryGetProperty("lastActiveOrg", out var laoProp) && laoProp.ValueKind == JsonValueKind.String ? laoProp.GetString() : null;
+
+        DiagLastActiveOrg = lao ?? "";
+        DiagLastPath      = $"/api/bootstrap + /api/organizations/…/usage (browser)";
+        DiagLastStatus    = 200;
+
+        UsageResponse?     usage       = null;
+        OverageSpendLimit? overage     = null;
+        PrepaidCredits?    prepaid     = null;
+
+        if (root.TryGetProperty("usage",   out var us) && us.ValueKind == JsonValueKind.Object)
+            usage   = JsonSerializer.Deserialize<UsageResponse>(us.GetRawText(), JsonOpts);
+        if (root.TryGetProperty("overage", out var ov) && ov.ValueKind == JsonValueKind.Object)
+            overage = JsonSerializer.Deserialize<OverageSpendLimit>(ov.GetRawText(), JsonOpts);
+        if (root.TryGetProperty("prepaid", out var pp) && pp.ValueKind == JsonValueKind.Object)
+            prepaid = JsonSerializer.Deserialize<PrepaidCredits>(pp.GetRawText(), JsonOpts);
+
+        return (BuildLimits(usage), overage, prepaid, usage?.ExtraUsage, email, orgId, planLabel);
+    }
+
+    // ── HttpClient refresh (fallback — before browser is ready) ──────────────
+
+    private async Task<(List<AgentLimit>, OverageSpendLimit?, PrepaidCredits?, ExtraUsage?, string?, string?, string?, bool)>
         TryHttpRefreshAsync(List<(string Name, string Value, string Domain, string Path)> cookies)
     {
-        try
-        {
-            using var http = BuildClient(cookies);
-            var bootstrapResp = await http.GetAsync("https://claude.ai/api/bootstrap");
-            if (!bootstrapResp.IsSuccessStatusCode)
-                return ([], null, null, null, null, false);
+        // Prefer the org the user last had active, not necessarily memberships[0].
+        var lastActiveOrg = cookies.FirstOrDefault(c => c.Name == "lastActiveOrg").Value;
+        DiagLastActiveOrg = lastActiveOrg ?? "";
 
-            var (email, orgId) = ParseBootstrap(await bootstrapResp.Content.ReadAsStringAsync());
+        using var http = BuildClient(cookies);
 
-            if (string.IsNullOrEmpty(orgId))
-                orgId = await FetchOrgIdFromListAsync(http);
-            if (string.IsNullOrEmpty(orgId) && !string.IsNullOrEmpty(AppSettings.Default.OrgId))
-                orgId = AppSettings.Default.OrgId;
+        var bootstrapResp = await http.GetAsync("https://claude.ai/api/bootstrap");
+        DiagLastPath   = "/api/bootstrap";
+        DiagLastStatus = (int)bootstrapResp.StatusCode;
+        if ((int)bootstrapResp.StatusCode is 401 or 403)
+            throw new Exception("Session expired — please re-authenticate.");
+        if (!bootstrapResp.IsSuccessStatusCode)
+            throw new Exception($"Bootstrap failed ({(int)bootstrapResp.StatusCode}).");
 
-            if (string.IsNullOrEmpty(orgId))
-                return ([], null, null, email, orgId, true);
+        var bootstrapJson = await bootstrapResp.Content.ReadAsStringAsync();
+        var (email, orgId, planLabel) = ParseBootstrap(bootstrapJson, lastActiveOrg);
 
-            AppSettings.Default.OrgId = orgId;
-            AppSettings.Default.Save();
+        if (string.IsNullOrEmpty(orgId))
+            orgId = await FetchOrgIdFromListAsync(http);
 
-            var ut = FetchAsync<UsageResponse>(http, $"https://claude.ai/api/organizations/{orgId}/usage");
-            var ot = FetchAsync<OverageSpendLimit>(http, $"https://claude.ai/api/organizations/{orgId}/overage_spend_limit");
-            var pt = FetchAsync<PrepaidCredits>(http, $"https://claude.ai/api/organizations/{orgId}/prepaid/credits");
-            await Task.WhenAll(ut, ot, pt);
+        if (string.IsNullOrEmpty(orgId))
+            return ([], null, null, null, email, orgId, planLabel, true);
 
-            return (BuildLimits(ut.Result), ot.Result, pt.Result, email, orgId, true);
-        }
-        catch { return ([], null, null, null, null, false); }
+        var ut = http.GetAsync($"https://claude.ai/api/organizations/{orgId}/usage");
+        var ot = FetchAsync<OverageSpendLimit>(http, $"https://claude.ai/api/organizations/{orgId}/overage_spend_limit");
+        var pt = FetchAsync<PrepaidCredits>(http, $"https://claude.ai/api/organizations/{orgId}/prepaid/credits");
+        await Task.WhenAll(ut, ot, pt);
+
+        var usageResp = ut.Result;
+        DiagLastPath   = $"/api/organizations/{orgId}/usage";
+        DiagLastStatus = (int)usageResp.StatusCode;
+        if (!usageResp.IsSuccessStatusCode)
+            throw new Exception($"Usage fetch failed ({(int)usageResp.StatusCode}).");
+
+        var usageJson = await usageResp.Content.ReadAsStringAsync();
+        var usage     = JsonSerializer.Deserialize<UsageResponse>(usageJson, JsonOpts);
+
+        return (BuildLimits(usage), ot.Result, pt.Result, usage?.ExtraUsage, email, orgId, planLabel, true);
     }
 
-    private static async Task<(List<AgentLimit>, string?, string?)> TryWebView2RefreshAsync()
-    {
-        try
-        {
-            const string script = @"(async()=>{try{
-                const h={headers:{accept:'application/json'}};
-                const b=await(await fetch('/api/bootstrap',h)).json();
-                let id=b?.memberships?.[0]?.organization?.uuid||b?.organizations?.[0]?.uuid
-                        ||b?.default_organization?.uuid||null;
-                const em=b?.account?.email_address||b?.account?.email||b?.email||null;
-                if(!id){
-                    try{const ol=await(await fetch('/api/organizations',h)).json();
-                        if(Array.isArray(ol)&&ol.length>0)id=ol[0]?.uuid||null;}catch(e2){}
-                }
-                if(!id){
-                    let pu=null;
-                    try{pu=await(await fetch('/api/usage',h)).json();}catch(e3){}
-                    window.chrome.webview.postMessage(JSON.stringify({email:em,orgId:null,usage:(pu&&!pu.error?pu:null)}));
-                    return;
-                }
-                const u=await(await fetch('/api/organizations/'+id+'/usage',h)).json();
-                window.chrome.webview.postMessage(JSON.stringify({email:em,orgId:id,usage:u}));
-            }catch(ex){window.chrome.webview.postMessage(null);}})();";
-
-            var resultJson = await Application.Current.Dispatcher.InvokeAsync(async () =>
-            {
-                var host = new WebViewFetchWindow();
-                host.Show();
-                try   { return await host.FetchAsync("https://claude.ai", script); }
-                finally { host.Close(); }
-            }).Task.Unwrap();
-
-            if (resultJson == null || resultJson == "null") return ([], null, null);
-
-            using var doc = System.Text.Json.JsonDocument.Parse(resultJson);
-            var root = doc.RootElement;
-
-            string? email = root.TryGetProperty("email", out var em) && em.ValueKind == System.Text.Json.JsonValueKind.String
-                ? em.GetString() : null;
-            string? orgId = root.TryGetProperty("orgId", out var oi) && oi.ValueKind == System.Text.Json.JsonValueKind.String
-                ? oi.GetString() : null;
-
-            List<AgentLimit> limits = [];
-            if (root.TryGetProperty("usage", out var us) && us.ValueKind == System.Text.Json.JsonValueKind.Object)
-            {
-                var usage = System.Text.Json.JsonSerializer.Deserialize<UsageResponse>(
-                    us.GetRawText(), new System.Text.Json.JsonSerializerOptions { PropertyNameCaseInsensitive = true });
-                limits = BuildLimits(usage);
-
-                // Cache for next time
-                AppSettings.Default.UsageJson = us.GetRawText();
-                if (!string.IsNullOrEmpty(orgId)) AppSettings.Default.OrgId = orgId;
-                if (!string.IsNullOrEmpty(email)) AppSettings.Default.Email = email;
-                AppSettings.Default.Save();
-            }
-
-            return (limits, email, orgId);
-        }
-        catch { return ([], null, null); }
-    }
+    // ── Startup cache ─────────────────────────────────────────────────────────
+    // Called before the browser is ready. Sets sign-in state and shows placeholders
+    // with any previously accumulated burn history so the popup isn't blank.
 
     public async Task LoadFromCacheAsync()
     {
-        var email  = AppSettings.Default.Email;
-        var orgId  = AppSettings.Default.OrgId;
-        var cookie = AppSettings.Default.CookieStore;
+        if (string.IsNullOrEmpty(AppSettings.Default.CookieStore)) return;
 
-        bool isAuth = !string.IsNullOrEmpty(email) || !string.IsNullOrEmpty(orgId)
-                   || !string.IsNullOrEmpty(cookie);
-        if (!isAuth) return;
-
-        List<AgentLimit> limits = [];
-        if (!string.IsNullOrEmpty(AppSettings.Default.UsageJson))
+        var placeholders = LoadPlaceholderLimits();
+        foreach (var limit in placeholders)
         {
-            try
-            {
-                var cached = JsonSerializer.Deserialize<UsageResponse>(
-                    AppSettings.Default.UsageJson, JsonOpts);
-                limits = BuildLimits(cached);
-            }
-            catch { }
+            var key = limit.Window.ToString();
+            if (_burnHistory.TryGetValue(key, out var hist) && hist.Count > 0)
+                limit.BurnHistory = [.. hist];
         }
 
         await Application.Current.Dispatcher.InvokeAsync(() =>
         {
-            if (!string.IsNullOrEmpty(email)) UserEmail = email;
-            if (limits.Count > 0)             Limits    = limits;
-            IsSignedIn   = true;
-            ErrorMessage = limits.Count == 0 ? "Signed in — refreshing data…" : null;
-            LastUpdated  = limits.Count > 0 ? DateTime.Now : LastUpdated;
+            Limits     = placeholders;
+            IsSignedIn = true;
         });
     }
 
     public async Task SignOutAsync()
     {
         AppSettings.Default.CookieStore = "";
-        AppSettings.Default.OrgId       = "";
-        AppSettings.Default.Email       = "";
-        AppSettings.Default.UsageJson   = "";
         AppSettings.Default.Save();
 
         await Application.Current.Dispatcher.InvokeAsync(() =>
         {
             IsSignedIn   = false;
             UserEmail    = "";
+            PlanLabel    = "Claude";
             ErrorMessage = "Signed out.";
             Limits       = [];
         });
@@ -327,6 +378,14 @@ public class UsageViewModel : INotifyPropertyChanged
         http.DefaultRequestHeaders.Add("User-Agent",
             "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 " +
             "(KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36");
+        http.DefaultRequestHeaders.Add("Origin",              "https://claude.ai");
+        http.DefaultRequestHeaders.Add("Referer",             "https://claude.ai/");
+        http.DefaultRequestHeaders.Add("sec-fetch-dest",      "empty");
+        http.DefaultRequestHeaders.Add("sec-fetch-mode",      "cors");
+        http.DefaultRequestHeaders.Add("sec-fetch-site",      "same-origin");
+        http.DefaultRequestHeaders.Add("sec-ch-ua",           "\"Chromium\";v=\"124\", \"Google Chrome\";v=\"124\"");
+        http.DefaultRequestHeaders.Add("sec-ch-ua-mobile",    "?0");
+        http.DefaultRequestHeaders.Add("sec-ch-ua-platform",  "\"Windows\"");
         var cookieHeader = string.Join("; ", cookies.Select(c => $"{c.Name}={c.Value}"));
         http.DefaultRequestHeaders.Add("Cookie", cookieHeader);
         return http;
@@ -344,8 +403,11 @@ public class UsageViewModel : INotifyPropertyChanged
         catch { return null; }
     }
 
-    // Parse email and org ID out of bootstrap JSON (multiple fallback paths for org ID)
-    private static (string? Email, string? OrgId) ParseBootstrap(string json)
+    // Parses bootstrap JSON and returns email, org ID, and plan label.
+    // preferredOrgId (from the lastActiveOrg cookie) selects the correct org when the
+    // user belongs to multiple — memberships[0] is always the "Individual Org" which
+    // returns 403 on usage endpoints if the paid plan is on a different org.
+    private static (string? Email, string? OrgId, string? PlanLabel) ParseBootstrap(string json, string? preferredOrgId = null)
     {
         try
         {
@@ -353,32 +415,74 @@ public class UsageViewModel : INotifyPropertyChanged
             var root = doc.RootElement;
 
             string? email = null;
-            string? orgId = null;
-
             if (root.TryGetProperty("account", out var acct) &&
                 acct.TryGetProperty("email_address", out var em))
                 email = em.GetString();
 
-            // Path 1: memberships[0].organization.uuid
-            if (root.TryGetProperty("memberships", out var mems) && mems.GetArrayLength() > 0)
+            // Collect all org objects from memberships
+            var allOrgs = new List<JsonElement>();
+            if (root.TryGetProperty("account", out var acctNode) &&
+                acctNode.TryGetProperty("memberships", out var mems))
             {
-                var first = mems[0];
-                if (first.TryGetProperty("organization", out var org) &&
-                    org.TryGetProperty("uuid", out var uuid))
-                    orgId = uuid.GetString();
+                foreach (var mem in mems.EnumerateArray())
+                    if (mem.TryGetProperty("organization", out var org))
+                        allOrgs.Add(org);
+            }
+            if (allOrgs.Count == 0 && root.TryGetProperty("memberships", out var rootMems))
+            {
+                foreach (var mem in rootMems.EnumerateArray())
+                    if (mem.TryGetProperty("organization", out var org))
+                        allOrgs.Add(org);
             }
 
-            // Path 2: organizations[0].uuid (flat list on root)
+            // Prefer the org matching preferredOrgId, fall back to first
+            JsonElement activeOrg = default;
+            if (!string.IsNullOrEmpty(preferredOrgId))
+            {
+                foreach (var org in allOrgs)
+                {
+                    if (org.TryGetProperty("uuid", out var u) && u.GetString() == preferredOrgId)
+                    {
+                        activeOrg = org;
+                        break;
+                    }
+                }
+            }
+            if (activeOrg.ValueKind == JsonValueKind.Undefined && allOrgs.Count > 0)
+                activeOrg = allOrgs[0];
+
+            string? orgId = null;
+            if (activeOrg.ValueKind != JsonValueKind.Undefined &&
+                activeOrg.TryGetProperty("uuid", out var uuid))
+                orgId = uuid.GetString();
+
             if (string.IsNullOrEmpty(orgId) &&
                 root.TryGetProperty("organizations", out var orgs) && orgs.GetArrayLength() > 0)
             {
-                if (orgs[0].TryGetProperty("uuid", out var uuid))
-                    orgId = uuid.GetString();
+                if (orgs[0].TryGetProperty("uuid", out var u))
+                    orgId = u.GetString();
             }
 
-            return (email, orgId);
+            string? planLabel = null;
+            if (activeOrg.ValueKind != JsonValueKind.Undefined &&
+                activeOrg.TryGetProperty("capabilities", out var caps) &&
+                caps.ValueKind == JsonValueKind.Array)
+            {
+                foreach (var cap in caps.EnumerateArray())
+                {
+                    var s = cap.GetString() ?? "";
+                    if (s.StartsWith("claude_", StringComparison.OrdinalIgnoreCase))
+                    {
+                        var name = s.Substring("claude_".Length);
+                        if (name.Length > 0)
+                            planLabel = char.ToUpper(name[0]) + name.Substring(1).ToLower();
+                        break;
+                    }
+                }
+            }
+            return (email, orgId, planLabel);
         }
-        catch { return (null, null); }
+        catch { return (null, null, null); }
     }
 
     private static async Task<string?> FetchOrgIdFromListAsync(HttpClient http)
@@ -456,16 +560,18 @@ public class UsageViewModel : INotifyPropertyChanged
         return $"{diff.Hours}h {diff.Minutes}m";
     }
 
-    private void LoadPlaceholders()
+    private static List<AgentLimit> LoadPlaceholderLimits()
     {
         var now = DateTime.Now;
-        Limits =
+        return
         [
             new() { Window = WindowKind.FiveHour, UsedPercent = 0, TimeRemaining = "—", ResetDate = now.AddHours(1) },
             new() { Window = WindowKind.SevenDay,  UsedPercent = 0, TimeRemaining = "—", ResetDate = now.AddDays(7) },
         ];
     }
 
+    private void LoadPlaceholders() => Limits = LoadPlaceholderLimits();
+
     private void LoadBurnHistory()
     {
         try

windows/WebViewFetchWindow.cs

@@ -2,47 +2,110 @@ using Microsoft.Web.WebView2.Core;
 using Microsoft.Web.WebView2.Wpf;
 using System;
 using System.IO;
+using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
 
 namespace ClaudeCheckerWindows;
 
 // Invisible 1×1 window that hosts a WebView2 for authenticated API calls.
-// Uses the same user data folder as LoginWindow so the session is shared.
-internal sealed class WebViewFetchWindow : Window
+// Uses the same user data folder as LoginWindow so the session (including
+// cf_clearance) is always shared and fresh — equivalent to macOS's WKWebsiteDataStore.
+//
+// Two usage modes:
+//   • Persistent (App.BackgroundBrowser): created once at startup, navigates to
+//     claude.ai once, then scripts run directly on the live page every refresh.
+//     No re-navigation = no memory accumulation.
+//   • One-shot (LoginWindow): created, used, closed — same as before.
+public sealed class WebViewFetchWindow : Window
 {
     private readonly WebView2 _wv = new();
+    private bool _initialized;
+    private bool _readyForScript; // true after first navigation to claude.ai completes
+
+    private static readonly string UserDataFolder =
+        Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+            "ClaudeChecker", "WebView2");
+
+    public bool IsReady => _readyForScript;
 
     public WebViewFetchWindow()
     {
-        Width          = 1;
-        Height         = 1;
-        Left           = -9999;
-        Top            = -9999;
-        ShowInTaskbar  = false;
-        WindowStyle    = WindowStyle.None;
+        Width              = 1;
+        Height             = 1;
+        Left               = -9999;
+        Top                = -9999;
+        ShowInTaskbar      = false;
+        WindowStyle        = WindowStyle.None;
         AllowsTransparency = true;
-        Opacity        = 0;
-        Content        = _wv;
+        Opacity            = 0;
+        Content            = _wv;
     }
 
-    public async Task<string?> FetchAsync(string navigateUrl, string script, int timeoutMs = 20000)
-    {
-        var env = await CoreWebView2Environment.CreateAsync(userDataFolder:
-            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
-                "ClaudeChecker", "WebView2"));
+    // ── Persistent-mode init ──────────────────────────────────────────────────
 
-        await _wv.EnsureCoreWebView2Async(env);
+    // Call once at startup. Navigates to claude.ai so the session/cookies are
+    // established and cf_clearance is fresh. Subsequent RunScriptAsync calls
+    // skip navigation and just execute JS on the live page.
+    public async Task InitAsync()
+    {
+        await EnsureInitAsync();
+
+        var navDone = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
+        EventHandler<CoreWebView2NavigationCompletedEventArgs>? h = null;
+        h = (_, e) => { _wv.CoreWebView2.NavigationCompleted -= h; navDone.TrySetResult(e.IsSuccess); };
+        _wv.CoreWebView2.NavigationCompleted += h;
+        _wv.CoreWebView2.Navigate("https://claude.ai");
+
+        // Wait up to 15 s for initial navigation
+        await Task.WhenAny(navDone.Task, Task.Delay(15000));
+        _readyForScript = navDone.Task.IsCompletedSuccessfully && navDone.Task.Result;
+    }
+
+    // Run a JS script on the already-loaded claude.ai page.
+    // The script must call window.chrome.webview.postMessage(result).
+    public async Task<string?> RunScriptAsync(string script, int timeoutMs = 10000)
+    {
+        if (!_readyForScript) return null;
 
         var tcs = new TaskCompletionSource<string?>(TaskCreationOptions.RunContinuationsAsynchronously);
-
-        // Use WebMessageReceived so the script can post back asynchronously without
-        // relying on Promise-awaiting support in the WebView2 runtime version.
         EventHandler<CoreWebView2WebMessageReceivedEventArgs>? msgHandler = null;
         msgHandler = (_, args) =>
         {
             _wv.CoreWebView2.WebMessageReceived -= msgHandler;
-            tcs.TrySetResult(args.WebMessageAsString);
+            tcs.TrySetResult(args.WebMessageAsJson);
+        };
+        _wv.CoreWebView2.WebMessageReceived += msgHandler;
+
+        try { await _wv.CoreWebView2.ExecuteScriptAsync(script); }
+        catch
+        {
+            _wv.CoreWebView2.WebMessageReceived -= msgHandler;
+            return null;
+        }
+
+        _ = Task.Delay(timeoutMs).ContinueWith(_ =>
+        {
+            _wv.CoreWebView2.WebMessageReceived -= msgHandler;
+            tcs.TrySetResult(null);
+        });
+
+        return await tcs.Task;
+    }
+
+    // ── One-shot mode (LoginWindow) ───────────────────────────────────────────
+
+    public async Task<string?> FetchAsync(string navigateUrl, string script, int timeoutMs = 20000)
+    {
+        await EnsureInitAsync();
+
+        var tcs = new TaskCompletionSource<string?>(TaskCreationOptions.RunContinuationsAsynchronously);
+
+        EventHandler<CoreWebView2WebMessageReceivedEventArgs>? msgHandler = null;
+        msgHandler = (_, args) =>
+        {
+            _wv.CoreWebView2.WebMessageReceived -= msgHandler;
+            tcs.TrySetResult(args.WebMessageAsJson);
         };
         _wv.CoreWebView2.WebMessageReceived += msgHandler;
 
@@ -65,4 +128,18 @@ internal sealed class WebViewFetchWindow : Window
 
         return await tcs.Task;
     }
+
+    // ── Shared init ───────────────────────────────────────────────────────────
+
+    private int _initGuard;
+
+    private async Task EnsureInitAsync()
+    {
+        if (_initialized) return;
+        if (Interlocked.Exchange(ref _initGuard, 1) != 0) return;
+
+        var env = await CoreWebView2Environment.CreateAsync(userDataFolder: UserDataFolder);
+        await _wv.EnsureCoreWebView2Async(env);
+        _initialized = true;
+    }
 }

windows/installer.iss

@@ -0,0 +1,42 @@
+#ifndef AppVersion
+  #define AppVersion "0.0.1"
+#endif
+
+[Setup]
+AppName=ClaudeChecker
+AppVersion={#AppVersion}
+AppPublisher=superdooper86
+AppPublisherURL=https://github.com/superdooper86/claudechecker
+AppSupportURL=https://github.com/superdooper86/claudechecker/issues
+AppUpdatesURL=https://github.com/superdooper86/claudechecker/releases
+DefaultDirName={localappdata}\ClaudeChecker
+DefaultGroupName=ClaudeChecker
+DisableProgramGroupPage=yes
+PrivilegesRequired=lowest
+OutputDir=..
+OutputBaseFilename=ClaudeChecker-Installer
+Compression=lzma
+SolidCompression=yes
+WizardStyle=modern
+UninstallDisplayIcon={app}\ClaudeChecker.exe
+SourceDir=..
+
+[Languages]
+Name: "english"; MessagesFile: "compiler:Default.isl"
+
+[Tasks]
+Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
+
+[Files]
+Source: "publish\ClaudeChecker.exe"; DestDir: "{app}"; Flags: ignoreversion
+Source: "publish\Assets\*"; DestDir: "{app}\Assets"; Flags: ignoreversion recursesubdirs
+
+[Icons]
+Name: "{group}\ClaudeChecker"; Filename: "{app}\ClaudeChecker.exe"
+Name: "{commondesktop}\ClaudeChecker"; Filename: "{app}\ClaudeChecker.exe"; Tasks: desktopicon
+
+[Run]
+; Silent install (auto-update): launch automatically
+Filename: "{app}\ClaudeChecker.exe"; Flags: nowait; Check: WizardSilent
+; Manual install: show launch checkbox on final page
+Filename: "{app}\ClaudeChecker.exe"; Description: "{cm:LaunchProgram,ClaudeChecker}"; Flags: nowait postinstall skipifsilent