docs: add user guide and release zip packaging

Makefile

@@ -1,6 +1,7 @@
 BINARY     := ./bin/photoscli
 MODULE     := gitea.k3s.k0.nu/tools/photocli
 VERSION    := 0.5.0
+RELEASE_ZIP := ./bin/photoscli-$(VERSION)-macos.zip
 BRIDGE_DIR := bridge
 LDFLAGS    := -X main.version=$(VERSION)
 OBJ        := $(BRIDGE_DIR)/photokit_bridge.o
@@ -10,7 +11,7 @@ STUB_LIB   := $(BRIDGE_DIR)/libphotokit_bridge_stub.a
 GITEA_HOST := gitea-1.tail82444.ts.net
 GITEA_REPO := tools/photocli
 
-.PHONY: all build clean test coverage tag release pipeline
+.PHONY: all build clean test coverage tag package release pipeline
 
 all: build
 
@@ -43,14 +44,17 @@ coverage: $(STUB_LIB)
 	go tool cover -func=coverage.out
 
 clean:
-	rm -f $(BINARY) $(OBJ) $(LIB) $(STUB_OBJ) $(STUB_LIB) coverage.out
+	rm -f $(BINARY) $(RELEASE_ZIP) $(OBJ) $(LIB) $(STUB_OBJ) $(STUB_LIB) coverage.out
+
+package: build
+	zip -j $(RELEASE_ZIP) $(BINARY) README.md USERGUIDE.md CHANGELOG.md
 
 tag:
 	git tag v$(VERSION)
 	git push origin v$(VERSION)
 
-release:
-	tea releases create --repo $(GITEA_REPO) --tag v$(VERSION) --title "v$(VERSION)" --asset $(BINARY)
+release: package
+	tea releases create --repo $(GITEA_REPO) --tag v$(VERSION) --title "v$(VERSION)" --asset $(BINARY) --asset USERGUIDE.md --asset $(RELEASE_ZIP)
 
 pipeline: clean test build
 	@echo "--- verifying version ---"