refactor(packaging): split into dispatch/dispatch-systemd/dispatch-s6, separate dispatch-electron, add bun-based frontend serve

PKGBUILD is now a split package producing three .pkg.tar.zst files in one
makepkg run:
  - dispatch          base application files (/opt/dispatch), CLI wrappers
                       (dispatch-api, dispatch-frontend), env configs
                       (/etc/dispatch/dispatch-api.conf,
                        /etc/dispatch/dispatch-frontend.conf)
  - dispatch-systemd  systemd user units for dispatch-api + dispatch-frontend
                       (conflicts with dispatch-s6)
  - dispatch-s6       s6-rc service pipelines (-srv + -log) for both services
                       (conflicts with dispatch-systemd)

The Electron desktop wrapper moved to its own self-contained PKGBUILD at
packaging/electron/, producing dispatch-electron. It bundles its own copy of
the frontend dist + electron entry points under /opt/dispatch-electron and
does not depend on the base dispatch package, so users can install it
standalone and point VITE_API_URL at any backend at build time.

Files under packaging/ are now read directly from ${_projectdir}/packaging/
rather than via source=(); the two s6 service dirs share basenames (run,
type) which would collide inside ${srcdir}.

New frontend static server: packages/frontend/serve.ts uses Bun's built-in
HTTP server (no extra runtime deps) with SPA fallback to index.html and
path-traversal protection. PORT/HOST/DIST_DIR overridable via env. Exposed
as 'bun run --cwd packages/frontend serve' and via /usr/bin/dispatch-frontend.

Build scripts:
  - bin/build-pkg            now prints the freshest built packages
  - bin/install-pkg          installs dispatch + dispatch-systemd by default;
                              accepts package names or --all; searches both
                              packaging/ and packaging/electron/
  - bin/build-pkg-electron   new, builds the electron split
  - bin/build-pkg-windows    replaces bin/windows-pkg; drops the hard-coded
                              WSL copy step, just prints the win-unpacked path

.gitignore extended to cover packaging/*.tar.zst and packaging/electron/{src,pkg,*.pkg.tar.zst,*.tar.zst}.

6 files changed, 167 insertions, 0 deletions

diff --git a/packaging/electron/PKGBUILD b/packaging/electron/PKGBUILD
new file mode 100644
index 0000000..a259418
--- /dev/null
+++ b/packaging/electron/PKGBUILD
@@ -0,0 +1,100 @@
+# Maintainer: dispatch
+#
+# Electron desktop wrapper for Dispatch on Linux.
+#
+# Self-contained: bundles its own copy of the built frontend dist + electron
+# entry points under /opt/dispatch-electron/. Does NOT depend on the `dispatch`
+# package — install that separately (with dispatch-systemd or dispatch-s6) if
+# you want to run the backend locally, or point VITE_API_URL at a remote
+# instance at build time.
+#
+# Build with:
+#   bin/build-pkg-electron       # makepkg -fd in packaging/electron/
+#
+# Override the backend URL the bundled frontend talks to:
+#   VITE_API_URL="http://your-host:18390" bin/build-pkg-electron
+
+pkgname=dispatch-electron
+pkgver=0.0.1
+pkgrel=1
+pkgdesc='Electron desktop wrapper for Dispatch (self-contained)'
+arch=('x86_64')
+url='https://github.com/anomalyco/dispatch'
+license=('MIT')
+depends=('electron')
+makedepends=('bun')
+install=dispatch-electron.install
+source=()
+sha256sums=()
+
+_projectdir="${startdir}/../.."
+_packagingdir="${_projectdir}/packaging"
+_electrondir="${_packagingdir}/electron"
+
+prepare() {
+	mkdir -p "${srcdir}/dispatch-electron-${pkgver}"
+
+	# Copy project files into the src build directory (preserve symlinks)
+	cp -a \
+		"${_projectdir}/packages" \
+		"${_projectdir}/package.json" \
+		"${_projectdir}/bun.lock" \
+		"${_projectdir}/tsconfig.base.json" \
+		"${srcdir}/dispatch-electron-${pkgver}/"
+}
+
+build() {
+	cd "${srcdir}/dispatch-electron-${pkgver}"
+
+	# Install all deps (including devDependencies for vite build)
+	bun install --frozen-lockfile
+
+	# Build the SPA. VITE_API_URL is baked in at build time.
+	VITE_API_URL="${VITE_API_URL:-http://localhost:18390}" \
+		bun run --cwd packages/frontend build
+}
+
+package() {
+	cd "${srcdir}/dispatch-electron-${pkgver}"
+
+	local optdir="${pkgdir}/opt/dispatch-electron"
+
+	# --- Bundled SPA dist ---
+	install -dm755 "${optdir}/dist"
+	cp -a packages/frontend/dist/. "${optdir}/dist/"
+
+	# --- Electron entry points ---
+	# main.cjs loads ../dist/index.html — so the dist must sit alongside electron/.
+	install -Dm644 \
+		packages/frontend/electron/main.cjs \
+		"${optdir}/electron/main.cjs"
+	install -Dm644 \
+		packages/frontend/electron/preload.cjs \
+		"${optdir}/electron/preload.cjs"
+
+	# --- /usr/bin/dispatch (electron wrapper) ---
+	install -Dm755 \
+		"${_electrondir}/dispatch-electron-wrapper.sh" \
+		"${pkgdir}/usr/bin/dispatch"
+
+	# --- Desktop integration ---
+	install -Dm644 \
+		"${_electrondir}/dispatch.desktop" \
+		"${pkgdir}/usr/share/applications/dispatch.desktop"
+
+	install -Dm644 \
+		"${_electrondir}/dispatch.svg" \
+		"${pkgdir}/usr/share/icons/hicolor/scalable/apps/dispatch.svg"
+
+	if [ -f "${_electrondir}/dispatch.png" ]; then
+		install -Dm644 \
+			"${_electrondir}/dispatch.png" \
+			"${pkgdir}/usr/share/icons/hicolor/512x512/apps/dispatch.png"
+	fi
+
+	# --- License ---
+	if [ -f "${_projectdir}/LICENSE" ]; then
+		install -Dm644 "${_projectdir}/LICENSE" \
+			"${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
+	fi
+}
diff --git a/packaging/electron/dispatch-electron-wrapper.sh b/packaging/electron/dispatch-electron-wrapper.sh
new file mode 100755
index 0000000..948db3b
--- /dev/null
+++ b/packaging/electron/dispatch-electron-wrapper.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+exec /usr/bin/electron --name="Dispatch" /opt/dispatch-electron/electron/main.cjs "$@"
diff --git a/packaging/electron/dispatch-electron.install b/packaging/electron/dispatch-electron.install
new file mode 100644
index 0000000..9eea6b1
--- /dev/null
+++ b/packaging/electron/dispatch-electron.install
@@ -0,0 +1,32 @@
+post_install() {
+	echo ""
+	echo "==> Dispatch Electron desktop wrapper installed (self-contained)."
+	echo "    Launch from your menu (Dispatch) or run:"
+	echo "      dispatch"
+	echo ""
+	echo "    The bundled frontend talks to the API URL baked in at build"
+	echo "    time (default: http://localhost:18390). To run a local backend:"
+	echo "      pacman -S dispatch dispatch-systemd   # systemd"
+	echo "      pacman -S dispatch dispatch-s6        # s6 / Artix"
+	echo ""
+	echo "    To point the wrapper at a different backend, rebuild with:"
+	echo "      VITE_API_URL=\"http://your-host:18390\" bin/build-pkg-electron"
+	echo ""
+
+	if command -v update-desktop-database >/dev/null 2>&1; then
+		update-desktop-database -q /usr/share/applications 2>/dev/null || true
+	fi
+	if command -v gtk-update-icon-cache >/dev/null 2>&1; then
+		gtk-update-icon-cache -q /usr/share/icons/hicolor 2>/dev/null || true
+	fi
+}
+
+post_upgrade() {
+	post_install
+}
+
+post_remove() {
+	if command -v update-desktop-database >/dev/null 2>&1; then
+		update-desktop-database -q /usr/share/applications 2>/dev/null || true
+	fi
+}
diff --git a/packaging/electron/dispatch.desktop b/packaging/electron/dispatch.desktop
new file mode 100644
index 0000000..0ed44af
--- /dev/null
+++ b/packaging/electron/dispatch.desktop
@@ -0,0 +1,9 @@
+[Desktop Entry]
+Name=Dispatch
+Comment=AI Agent Dispatch Interface
+Exec=/usr/bin/dispatch %U
+Icon=dispatch
+Terminal=false
+Type=Application
+Categories=Development;Utility;
+StartupWMClass=Dispatch
diff --git a/packaging/electron/dispatch.png b/packaging/electron/dispatch.png
new file mode 100644
index 0000000..84d743a
--- /dev/null
+++ b/packaging/electron/dispatch.png
diff --git a/packaging/electron/dispatch.svg b/packaging/electron/dispatch.svg
new file mode 100644
index 0000000..2aae97f
--- /dev/null
+++ b/packaging/electron/dispatch.svg
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64" width="64" height="64">
+  <defs>
+    <linearGradient id="bg" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" style="stop-color:#5b6af0"/>
+      <stop offset="100%" style="stop-color:#9b59f7"/>
+    </linearGradient>
+    <linearGradient id="arrow" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" style="stop-color:#ffffff;stop-opacity:1"/>
+      <stop offset="100%" style="stop-color:#e0d8ff;stop-opacity:1"/>
+    </linearGradient>
+  </defs>
+
+  <!-- Rounded square background -->
+  <rect x="2" y="2" width="60" height="60" rx="14" ry="14" fill="url(#bg)"/>
+
+  <!-- Send/dispatch arrow icon: a paper-plane style arrow pointing upper-right -->
+  <!-- Main arrow body -->
+  <polygon points="10,50 54,10 38,32" fill="url(#arrow)" opacity="0.95"/>
+  <!-- Arrow tail fill -->
+  <polygon points="10,50 28,36 22,54" fill="url(#arrow)" opacity="0.75"/>
+  <!-- Subtle highlight line -->
+  <line x1="54" y1="10" x2="28" y2="36" stroke="white" stroke-width="1.5" stroke-linecap="round" opacity="0.5"/>
+</svg>