Add Install Scripts (winget .NET 10 install) for the no-runtime case (held for next release)

RemSound is a .NET 10 app, so it can't install its own runtime — it can't start without it. A
plain .cmd/.ps1 (which run on what's already in Windows) sidesteps that: double-click
"Install Scripts\Install .NET for RemSound.cmd" and it winget-installs the .NET 10 Desktop Runtime
(Microsoft.DotNet.DesktopRuntime.10), falling back to opening Microsoft's download page if winget
is absent. Modelled on Andre Louis's accessible-sensor-readout Install_Scripts (his install .NET
Framework 4.8 because SR is Framework; ours installs the .NET 10 Desktop Runtime RemSound needs).

Bundled into the build + release zip via csproj Content + EnsureInstallScriptsPublished target.
Manual Quick-start note points users here if RemSound won't start. Held for the next release.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Install Scripts/Install .NET for RemSound.cmd

@@ -0,0 +1,41 @@
+@echo off
+title Install .NET for RemSound
+echo.
+echo  RemSound needs the Microsoft .NET 10 Desktop Runtime to run.
+echo  This will install it for you using winget (the Windows package manager).
+echo.
+
+where winget >nul 2>nul
+if errorlevel 1 goto nowinget
+
+winget install --id Microsoft.DotNet.DesktopRuntime.10 -e --source winget --accept-package-agreements --accept-source-agreements
+if errorlevel 1 goto failed
+
+echo.
+echo  All done. You can now run RemSound.exe.
+echo.
+echo  Press any key to close this window.
+pause >nul
+exit /b 0
+
+:nowinget
+echo  winget isn't available on this PC (it comes with Windows 10 version 1809 or newer,
+echo  and Windows 11). Falling back to the manual download.
+goto manual
+
+:failed
+echo.
+echo  The automatic install didn't finish. Falling back to the manual download.
+goto manual
+
+:manual
+echo.
+echo  Opening the official Microsoft download page. On it, choose
+echo  ".NET Desktop Runtime" for "x64", download and run it, then start RemSound.
+echo.
+echo     https://dotnet.microsoft.com/download/dotnet/10.0
+echo.
+start "" "https://dotnet.microsoft.com/download/dotnet/10.0"
+echo  Press any key to close this window.
+pause >nul
+exit /b 1

Install Scripts/Install .NET for RemSound.ps1

@@ -0,0 +1,33 @@
+# Installs the Microsoft .NET 10 Desktop Runtime that RemSound needs, via winget.
+# The .cmd next to this file is the easy one - just double-click it. This .ps1 is here for
+# people who prefer PowerShell; if Windows blocks it, run:
+#   powershell -ExecutionPolicy Bypass -File ".\Install .NET for RemSound.ps1"
+
+$downloadPage = 'https://dotnet.microsoft.com/download/dotnet/10.0'
+
+Write-Host ''
+Write-Host 'RemSound needs the Microsoft .NET 10 Desktop Runtime to run.'
+Write-Host 'This will install it for you using winget (the Windows package manager).'
+Write-Host ''
+
+$winget = Get-Command winget -ErrorAction SilentlyContinue
+if ($null -eq $winget) {
+    Write-Host "winget isn't available on this PC (it comes with Windows 10 version 1809 or newer, and" -ForegroundColor Yellow
+    Write-Host "Windows 11). Opening the manual download page - choose '.NET Desktop Runtime' for 'x64'." -ForegroundColor Yellow
+    Start-Process $downloadPage
+    Read-Host 'Press Enter to close'
+    exit 1
+}
+
+winget install --id Microsoft.DotNet.DesktopRuntime.10 -e --source winget --accept-package-agreements --accept-source-agreements
+if ($LASTEXITCODE -ne 0) {
+    Write-Host ''
+    Write-Host "The automatic install didn't finish. Opening the manual download page instead." -ForegroundColor Yellow
+    Start-Process $downloadPage
+    Read-Host 'Press Enter to close'
+    exit 1
+}
+
+Write-Host ''
+Write-Host 'All done. You can now run RemSound.exe.' -ForegroundColor Green
+Read-Host 'Press Enter to close'

MANUAL.md

@@ -53,6 +53,8 @@ There is no central server, no account, and nothing stored online. The sound goe
 
 ## 2. Quick start
 
+> **If RemSound won't start** — if Windows says it needs “.NET” — RemSound runs on the **Microsoft .NET 10 Desktop Runtime**. Most up-to-date Windows machines already have it; if yours doesn't, open the **Install Scripts** folder sitting next to `RemSound.exe` and double-click **Install .NET for RemSound.cmd**. It fetches and installs it for you (using winget, the Windows package manager), and then RemSound will start. There's a `.ps1` version in the same folder for PowerShell users. If you'd rather do it by hand, the script opens Microsoft's download page, where you pick “.NET Desktop Runtime” for “x64”.
+
 Let's assume you and a friend both have RemSound running, and that your two computers can reach each other on the network (the same Wi-Fi, the same Tailscale account, and so on).
 
   1. Start RemSound. The first thing you'll see is the **profile picker**. On a brand-new install your only choice is **New profile** — select it and press Enter or click OK. Later, once you've saved a setup or two of your own, this is the dialog where you choose which one to load. See Profiles for the full story.

readme.html

@@ -74,6 +74,10 @@ ul, ol { padding-left: 1.4em; }
 
 <h2 id="quick-start">2. Quick start</h2>
 
+<div class="note">
+<strong>If RemSound won't start</strong> &mdash; if Windows says it needs &ldquo;.NET&rdquo; &mdash; RemSound runs on the <strong>Microsoft .NET 10 Desktop Runtime</strong>. Most up-to-date Windows machines already have it; if yours doesn't, open the <strong>Install Scripts</strong> folder sitting next to <code>RemSound.exe</code> and double-click <strong>Install .NET for RemSound.cmd</strong>. It fetches and installs it for you (using winget, the Windows package manager), and then RemSound will start. There's a <code>.ps1</code> version in the same folder for PowerShell users. If you'd rather do it by hand, the script opens Microsoft's download page, where you pick &ldquo;.NET Desktop Runtime&rdquo; for &ldquo;x64&rdquo;.
+</div>
+
 <p>Let's assume you and a friend both have RemSound running, and that your two computers can reach each other on the network (the same Wi-Fi, the same Tailscale account, and so on).</p>
 
 <ol>

src/RemSound.App/RemSound.App.csproj

@@ -90,6 +90,17 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
     </Content>
+    <!-- Install Scripts (vendored). A .cmd / .ps1 that install the .NET 10 Desktop Runtime RemSound
+         needs, via winget, for the rare machine that doesn't have it yet. RemSound is a .NET 10 app, so
+         it can't install its own runtime — it can't start without it — hence a plain script (cmd/ps1
+         run on what's already in Windows). Shipped next to the exe in an "Install Scripts" folder; the
+         manual points users here if RemSound won't start. EnsureInstallScriptsPublished below makes the
+         publish copy marker-independent (same belt-and-braces as the cue WAVs / Tolk DLLs). -->
+    <Content Include="..\..\Install Scripts\*.cmd;..\..\Install Scripts\*.ps1">
+      <Link>Install Scripts\%(Filename)%(Extension)</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
+    </Content>
   </ItemGroup>
 
   <!-- Guarantee the cue WAVs land in a PUBLISHED build. The Content items above use
@@ -118,4 +129,13 @@
     </ItemGroup>
     <Copy SourceFiles="@(_TolkFiles)" DestinationFolder="$(PublishDir)" SkipUnchangedFiles="false" />
   </Target>
+
+  <!-- Same marker-independent guarantee for the install scripts: always land them in a PUBLISHED build
+       so a release zip can never ship without the "Install Scripts" folder the manual points to. -->
+  <Target Name="EnsureInstallScriptsPublished" AfterTargets="Publish">
+    <ItemGroup>
+      <_InstallScripts Include="..\..\Install Scripts\*.cmd;..\..\Install Scripts\*.ps1" />
+    </ItemGroup>
+    <Copy SourceFiles="@(_InstallScripts)" DestinationFolder="$(PublishDir)Install Scripts" SkipUnchangedFiles="false" />
+  </Target>
 </Project>