feat(api): add /auth/whoami endpoint and build automation

Makefile

@@ -0,0 +1,58 @@
+.PHONY: all build swagger test clean dev
+
+# Default target
+all: swagger build
+
+# Generate swagger documentation using go run (no install needed)
+swagger:
+	@echo "Generating Swagger documentation..."
+	go run github.com/swaggo/swag/cmd/swag@latest init -g cmd/server/main.go -o docs --parseDependency --parseInternal
+
+# Build the binary
+build: swagger
+	@echo "Building ez-api..."
+	go build -o ez-api ./cmd/server
+
+# Build without swagger regeneration (for quick iteration)
+build-fast:
+	go build -o ez-api ./cmd/server
+
+# Run tests
+test:
+	go test -v ./...
+
+# Clean build artifacts
+clean:
+	rm -f ez-api
+	rm -rf docs/
+
+# Run in development mode
+dev: swagger
+	go run ./cmd/server
+
+# Format code
+fmt:
+	go fmt ./...
+
+# Lint code
+lint:
+	@which golangci-lint > /dev/null || go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
+	golangci-lint run
+
+# Generate swagger only (alias)
+docs: swagger
+
+# Help
+help:
+	@echo "Available targets:"
+	@echo "  all          - Generate swagger docs and build (default)"
+	@echo "  build        - Generate swagger and build binary"
+	@echo "  build-fast   - Build binary without swagger regeneration"
+	@echo "  swagger      - Generate Swagger documentation"
+	@echo "  docs         - Alias for swagger"
+	@echo "  test         - Run tests"
+	@echo "  dev          - Run in development mode"
+	@echo "  clean        - Remove build artifacts"
+	@echo "  fmt          - Format code"
+	@echo "  lint         - Run linter"
+	@echo "  help         - Show this help"