Release builds: Intel disk images, a Windows bundle, and where to download them

launcher/macos/build.sh takes ARCH=x86_64 for Intel Macs — the Swift target
and the embedded Node follow (nodejs.org calls that one darwin-x64). The
default stays arm64.

launcher/windows/build.sh is new: the same payload plus Node for Windows,
checksum-verified against nodejs.org, and ProdDash.bat, which keeps the
server running and starts it again on exit code 75 — the admin page's update
restart — the way the macOS launcher does. No Windows launcher app yet.

The README's Run it section now points at the Releases page and the
ProdDash-releases repo that holds the files, one line each for Apple
silicon, Intel and Windows.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

README.md

@@ -30,9 +30,19 @@ and a clear degraded state, then recover on their own.
 
 ## Run it
 
+Ready-made builds are on the
+[Releases page](http://chronicles-ab.waterschurch.org:3000/michael/ProdDash/releases);
+the files themselves live in
+[ProdDash-releases](http://chronicles-ab.waterschurch.org:3000/michael/ProdDash-releases).
+There is a disk image for Apple silicon Macs, one for Intel Macs, and a
+bundle for 64-bit Windows. Every build updates itself afterwards from the
+admin page, so the download only has to be recent, not current.
+
 ### macOS — the app
 
-Open the disk image and drag **ProdDash** to Applications. That's the whole
+Download the disk image for your Mac — `ProdDash-<version>-arm64.dmg` for
+Apple silicon, `ProdDash-<version>-x86_64.dmg` for Intel — open it and drag
+**ProdDash** to Applications. That's the whole
 installation: the app carries the dashboard and its own Node runtime, so
 nothing else has to be installed and nothing can be missing. It lives in the
 menu bar, starts and stops the server, can open at login, and holds the
@@ -43,12 +53,26 @@ a launchd job) simply doesn't have them, and an LTC input goes silently to
 zeroes.
 
 Build the disk image from a checkout with
-[launcher/macos](launcher/macos)/`build.sh`:
+[launcher/macos](launcher/macos)/`build.sh` (`ARCH=x86_64` in front of it
+for Intel):
 
 ```bash
 cd launcher/macos && ./build.sh --dmg
 ```
 
+### Windows — the bundle
+
+Download `ProdDash-<version>-win-x64.zip`, unzip it somewhere you can write
+to — `C:\ProdDash`, say, not Program Files, because updates write into the
+folder — and double-click **ProdDash.bat**. The window it opens is the
+dashboard running: it stays open, and it starts the server again when the
+admin page applies an update. Allow `node.exe` on private networks when the
+firewall asks, so other screens can reach it. Settings and layouts live in
+`%APPDATA%\ProdDash`, so a new bundle never loses them. To start with
+Windows, put a shortcut to `ProdDash.bat` in `shell:startup`. There is no
+menu-bar-style launcher for Windows yet; the bundle is built with
+[launcher/windows](launcher/windows)/`build.sh`.
+
 ### Anywhere else, or from a checkout
 
 Requires [Node.js](https://nodejs.org) 18 or newer.