ci: add Makefile and stricter eslint config

Makefile

@@ -0,0 +1,61 @@
+# ENV
+
+ifeq (,$(shell which bun))
+	NPM ?= npm
+endif
+
+NPM ?= bun
+GIT ?= git
+
+.PHONY: help
+help: ## show this message
+	@echo "Usage: $(MAKE) [target1] [target2] ..."
+	@echo ""
+	@echo "Commands/Targets:"
+	@cat $(MAKEFILE_LIST) | grep -E '(^[a-zA-Z0-9_%-]+:.*?##.*$$)|(^##)' | awk 'BEGIN {FS = ":.*?## "}{printf "\033[32m%-20s\033[0m %s\n", $$1, $$2}' | sed -e 's/\[32m##/[33m/'
+	@echo ""
+	@echo "Environment:"
+	@cat $(MAKEFILE_LIST) | grep -E '^[a-zA-Z0-9_-]+\s*\??=.*$$' | grep -Eo '^[a-zA-Z0-9_-]+' | xargs -I {} $(MAKE) -s print-{} 2> /dev/null
+
+.PHONY: print-%
+print-%:
+	@echo -e '\033[32m$*\033[0m = $($*)'
+
+# FILES
+
+node_modules: bun.lock
+	@$(MAKE) -s npm-install
+
+# ACTIONS
+
+.PHONY: install
+install: npm-install ## install project
+
+.PHONY: install
+install: npm-update ## update project
+
+.PHONY: build
+build: npm-run-build ## build static site in "dist"
+
+.PHONY: dev
+dev: npm-run-dev ## run dev server
+
+.PHONY: lint
+lint: npm-run-lint npm-run-type-check ## lint code
+
+.PHONY: format
+format: npm-run-lint-fix ## fix and reformat code
+
+# TOOLS
+
+.PHONY: npm-install
+npm-install: ## npm install
+	$(NPM) install
+
+.PHONY: npm-update
+npm-update: ## npm update
+	$(NPM) update
+
+.PHONY: npm-run-%
+npm-run-%: node_modules ## npm run (script)
+	$(NPM) run $*