feat: implement TorrentClaw Go API client v0.1.0

Makefile

@@ -0,0 +1,43 @@
+.PHONY: all test lint coverage clean fmt vet check install-hooks
+
+all: fmt vet lint test
+
+## Run all tests
+test:
+	go test -v -race -count=1 ./...
+
+## Run linter (requires golangci-lint)
+lint:
+	golangci-lint run ./...
+
+## Run tests with coverage report
+coverage:
+	go test -race -coverprofile=coverage.out -covermode=atomic ./...
+	go tool cover -func=coverage.out
+	go tool cover -html=coverage.out -o coverage.html
+
+## Format code
+fmt:
+	gofmt -s -w .
+
+## Check formatting (no write, exits non-zero if unformatted)
+check:
+	@test -z "$$(gofmt -l .)" || { echo "Files not formatted:"; gofmt -l .; exit 1; }
+
+## Run go vet
+vet:
+	go vet ./...
+
+## Install lefthook git hooks
+install-hooks:
+	lefthook install
+
+## Remove generated files
+clean:
+	rm -f coverage.out coverage.html
+
+# Release with goreleaser (future):
+#   1. Install goreleaser: https://goreleaser.com/install/
+#   2. Create .goreleaser.yml config
+#   3. Tag a version: git tag -a v0.x.0 -m "release v0.x.0"
+#   4. Run: goreleaser release --clean