Add Makefile for development and release workflow

Makefile

@@ -0,0 +1,97 @@
+.PHONY: build test lint clean check doc publish release-patch release-minor release-major help
+
+# Default target
+help:
+	@echo "Available targets:"
+	@echo "  build         - Build the library"
+	@echo "  test          - Run all tests"
+	@echo "  lint          - Run clippy and check formatting"
+	@echo "  check         - Run all checks (build, test, lint)"
+	@echo "  clean         - Clean build artifacts"
+	@echo "  doc           - Generate documentation"
+	@echo "  doc-open      - Generate and open documentation"
+	@echo ""
+	@echo "Release targets:"
+	@echo "  release-patch - Bump patch version (0.1.2 -> 0.1.3)"
+	@echo "  release-minor - Bump minor version (0.1.2 -> 0.2.0)"
+	@echo "  release-major - Bump major version (0.1.2 -> 1.0.0)"
+	@echo "  publish       - Publish to crates.io (run release-* first)"
+	@echo ""
+	@echo "Current version: $$(grep '^version' Cargo.toml | head -1 | cut -d'\"' -f2)"
+
+# Build the library
+build:
+	cargo build --lib
+
+# Run all tests
+test:
+	cargo test
+
+# Run clippy and check formatting
+lint:
+	cargo clippy -- -D warnings
+	cargo fmt -- --check
+
+# Format code
+fmt:
+	cargo fmt
+
+# Run all checks
+check: lint build test
+	@echo "All checks passed!"
+
+# Clean build artifacts
+clean:
+	cargo clean
+
+# Generate documentation
+doc:
+	cargo doc --no-deps
+
+# Generate and open documentation
+doc-open:
+	cargo doc --no-deps --open
+
+# Get current version
+version:
+	@grep '^version' Cargo.toml | head -1 | cut -d'"' -f2
+
+# Bump patch version (0.1.2 -> 0.1.3)
+release-patch:
+	@CURRENT=$$(grep '^version' Cargo.toml | head -1 | cut -d'"' -f2); \
+	MAJOR=$$(echo $$CURRENT | cut -d. -f1); \
+	MINOR=$$(echo $$CURRENT | cut -d. -f2); \
+	PATCH=$$(echo $$CURRENT | cut -d. -f3); \
+	NEW_PATCH=$$((PATCH + 1)); \
+	NEW_VERSION="$$MAJOR.$$MINOR.$$NEW_PATCH"; \
+	sed -i '' "s/^version = \"$$CURRENT\"/version = \"$$NEW_VERSION\"/" Cargo.toml; \
+	echo "Bumped version: $$CURRENT -> $$NEW_VERSION"
+
+# Bump minor version (0.1.2 -> 0.2.0)
+release-minor:
+	@CURRENT=$$(grep '^version' Cargo.toml | head -1 | cut -d'"' -f2); \
+	MAJOR=$$(echo $$CURRENT | cut -d. -f1); \
+	MINOR=$$(echo $$CURRENT | cut -d. -f2); \
+	NEW_MINOR=$$((MINOR + 1)); \
+	NEW_VERSION="$$MAJOR.$$NEW_MINOR.0"; \
+	sed -i '' "s/^version = \"$$CURRENT\"/version = \"$$NEW_VERSION\"/" Cargo.toml; \
+	echo "Bumped version: $$CURRENT -> $$NEW_VERSION"
+
+# Bump major version (0.1.2 -> 1.0.0)
+release-major:
+	@CURRENT=$$(grep '^version' Cargo.toml | head -1 | cut -d'"' -f2); \
+	MAJOR=$$(echo $$CURRENT | cut -d. -f1); \
+	NEW_MAJOR=$$((MAJOR + 1)); \
+	NEW_VERSION="$$NEW_MAJOR.0.0"; \
+	sed -i '' "s/^version = \"$$CURRENT\"/version = \"$$NEW_VERSION\"/" Cargo.toml; \
+	echo "Bumped version: $$CURRENT -> $$NEW_VERSION"
+
+# Publish to crates.io
+publish: check
+	@echo "Publishing to crates.io..."
+	@echo "Make sure you have run 'cargo login' first!"
+	cargo publish
+
+# Dry run publish (check if package is ready)
+publish-dry:
+	cargo publish --dry-run