feat: lodge server, client and admin

backend/Makefile

@@ -0,0 +1,35 @@
+COMPOSE := cd .. && docker compose
+IMAGE := lodge/backend
+LINT := go run github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.13.2
+changed = ! git diff --quiet $(1) -- $(2) 2>/dev/null
+stamp = { git update-ref $(1) HEAD 2>/dev/null || true; }
+
+.PHONY: fmt check test build pre-deploy post-deploy client dev
+
+fmt:
+	go mod tidy
+	$(LINT) fmt
+
+check:
+	$(LINT) run
+	$(MAKE) test
+
+test:
+	go test -race ./...
+
+build:
+	$(COMPOSE) build api
+
+pre-deploy:
+	@if $(call changed,refs/deploy/backend,.) || ! docker image inspect $(IMAGE) >/dev/null 2>&1; then \
+		$(MAKE) build && $(call stamp,refs/deploy/backend); \
+	fi
+
+post-deploy:
+	@:
+
+client:
+	go build -trimpath -ldflags "-s -w" -o bin/lodge ./cmd/lodge
+
+dev:
+	LODGE_DB=storage/lodge.db STATIC_DIR=../frontend/build CLIENTS_DIR=bin ADMIN_TOKEN=dev go run ./cmd/lodge-server