feat: standalone build + systemd install (Arch Linux)

bin/build: compiles standalone binaries (dispatch-server + dispatch CLI)
via bun build --compile, builds the frontend static bundle with
VITE_HTTP_PORT=24991 + VITE_WS_PORT=24990, copies to dist/web/.

bin/install: installs binaries to /usr/bin/, frontend to
/usr/share/dispatch/web/, systemd service to /etc/systemd/system/,
config to /etc/dispatch/env, data dirs to /var/lib/dispatch/ +
/var/log/dispatch/. Enables + starts the dispatch systemd service.
Supports --uninstall and --no-build flags.

systemd/dispatch.service: Type=simple, reads /etc/dispatch/env,
restarts on failure, logs to journald.

systemd/dispatch.env: template config (ports 24991 HTTP + 24990 WS,
DISPATCH_WEB_DIR, API key, data paths).

transport-http: optional webDir static file serving — unmatched GET
requests fall through to Bun.file() serving with SPA index.html
fallback. Gated on DISPATCH_WEB_DIR env var (backward compatible).

1 files changed, 56 insertions, 0 deletions

diff --git a/bin/build b/bin/build
new file mode 100755
index 0000000..0517af5
--- /dev/null
+++ b/bin/build
@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+# bin/build — compile the backend + CLI binaries and the frontend static bundle.
+#
+# Output:
+#   dist/dispatch-server   — standalone backend binary (Bun compile)
+#   dist/dispatch          — standalone CLI binary (Bun compile)
+#   dist/web/              — built frontend static files (vite build)
+#
+# The frontend is built with VITE_HTTP_PORT=24991 + VITE_WS_PORT=24990 so the
+# bundle talks to the backend on :24991 (HTTP) and :24990 (WS) at runtime.
+# The backend serves the frontend from DISPATCH_WEB_DIR (set in the systemd env).
+#
+# Usage: bin/build [--no-frontend]   (skip the frontend build if already built)
+
+set -euo pipefail
+
+HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT="$(cd "$HERE/.." && pwd)"
+BACKEND="$ROOT"
+FRONTEND="$(cd "$ROOT/.." && pwd)/dispatch-web"
+
+BUILD_FRONTEND=1
+if [[ "${1:-}" == "--no-frontend" ]]; then
+	BUILD_FRONTEND=0
+fi
+
+echo "[build] backend binary → dist/dispatch-server"
+mkdir -p "$ROOT/dist"
+bun build --compile "$BACKEND/packages/host-bin/src/main.ts" \
+	--outfile "$ROOT/dist/dispatch-server" \
+	--minify 2>&1 | tail -3
+
+echo "[build] CLI binary → dist/dispatch"
+bun build --compile "$BACKEND/packages/cli/src/main.ts" \
+	--outfile "$ROOT/dist/dispatch" \
+	--minify 2>&1 | tail -3
+
+if [[ "$BUILD_FRONTEND" -eq 1 ]]; then
+	if [[ ! -d "$FRONTEND" ]]; then
+		echo "[build] frontend not found at $FRONTEND — skipping" >&2
+	else
+		echo "[build] frontend → dist/web/ (VITE_HTTP_PORT=24991 VITE_WS_PORT=24990)"
+		(
+			cd "$FRONTEND"
+			VITE_HTTP_PORT=24991 VITE_WS_PORT=24990 bun run build 2>&1 | tail -5
+		)
+		rm -rf "$ROOT/dist/web"
+		cp -r "$FRONTEND/dist" "$ROOT/dist/web"
+		echo "[build] copied $(find "$ROOT/dist/web" -type f | wc -l) files"
+	fi
+fi
+
+echo "[build] done."
+echo "  dist/dispatch-server   ($(du -h "$ROOT/dist/dispatch-server" | cut -f1))"
+echo "  dist/dispatch          ($(du -h "$ROOT/dist/dispatch" | cut -f1))"
+[[ -d "$ROOT/dist/web" ]] && echo "  dist/web/              ($(du -sh "$ROOT/dist/web" | cut -f1))"