feat: Arch Linux packaging with Electron frontend, systemd backend service, and Windows exe build

- Add Electron wrapper (main.cjs, preload.cjs) for desktop frontend
- Add systemd service unit, env config, and sysusers for backend API
- Add PKGBUILD and .install for Arch package (makepkg -si)
- Add desktop entry, SVG/PNG icon, and wrapper scripts
- Add bin/build-pkg, bin/install-pkg, bin/windows-pkg scripts
- Make API port configurable via PORT env var (default 3000, prod 18390)
- Add electron-builder config for Windows exe cross-compilation
- Set vite base to './' for Electron file:// loading

1 files changed, 16 insertions, 0 deletions

diff --git a/packaging/dispatch.install b/packaging/dispatch.install
new file mode 100644
index 0000000..e6db694
--- /dev/null
+++ b/packaging/dispatch.install
@@ -0,0 +1,16 @@
+post_install() {
+	echo ""
+	echo "==> Dispatch has been installed."
+	echo "    Edit /etc/dispatch/dispatch-api.conf to configure the API."
+	echo "    Then enable and start the service:"
+	echo "      systemctl enable --now dispatch-api"
+	echo ""
+}
+
+post_upgrade() {
+	echo ""
+	echo "==> Dispatch has been upgraded."
+	echo "    You may need to restart the service:"
+	echo "      systemctl restart dispatch-api"
+	echo ""
+}