chore: add developer make targets

Makefile

@@ -0,0 +1,63 @@
+SHELL := /bin/sh
+
+CARGO ?= cargo
+DOCKER ?= docker
+IMAGE ?= pokedex-api
+TAG ?= local
+BASE_URL ?= http://localhost:8000
+POKEMON ?= mewtwo
+PLATFORMS ?= linux/amd64,linux/arm64
+GIT_SHA ?= $(shell git rev-parse HEAD 2>/dev/null || printf unknown)
+
+.PHONY: help run docker-build docker-run health pokemon translated metrics fmt clippy test check contract-test docker-buildx
+
+help:
+	@printf 'Available targets:\n'
+	@printf '  make run              Run the API locally with cargo\n'
+	@printf '  make docker-build     Build the Docker image\n'
+	@printf '  make docker-run       Run the Docker image on port 8000\n'
+	@printf '  make health           curl /health\n'
+	@printf '  make pokemon          curl /pokemon/$${POKEMON}\n'
+	@printf '  make translated       curl /pokemon/translated/$${POKEMON}\n'
+	@printf '  make metrics          curl /metrics\n'
+	@printf '  make check            Run fmt, clippy, and tests\n'
+	@printf '  make contract-test    Run ignored external contract tests\n'
+	@printf '  make docker-buildx    Build multi-arch Docker image\n'
+
+run:
+	$(CARGO) run --bin pokedex-api
+
+docker-build:
+	$(DOCKER) build -t $(IMAGE) .
+
+docker-run:
+	$(DOCKER) run --rm -p 8000:8000 $(IMAGE)
+
+health:
+	curl -fsS $(BASE_URL)/health
+
+pokemon:
+	curl -fsS $(BASE_URL)/pokemon/$(POKEMON)
+
+translated:
+	curl -fsS $(BASE_URL)/pokemon/translated/$(POKEMON)
+
+metrics:
+	curl -fsS $(BASE_URL)/metrics
+
+fmt:
+	$(CARGO) fmt --all --check
+
+clippy:
+	$(CARGO) clippy --locked --all-targets -- -D warnings
+
+test:
+	$(CARGO) test --locked
+
+check: fmt clippy test
+
+contract-test:
+	$(CARGO) test --locked --test external_contract -- --ignored --test-threads=1
+
+docker-buildx:
+	$(DOCKER) buildx build --platform $(PLATFORMS) --build-arg GIT_SHA=$(GIT_SHA) -t $(IMAGE):$(TAG) .