chore: add Makefile with run/build/test targets

make run                          — starts web UI on :8080
make run LISTEN=:9090             — custom port
make run AUDIT_PATH=/tmp/bee.json — with audit data
make build / make test

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

audit/Makefile

@@ -0,0 +1,18 @@
+LISTEN ?= :8080
+AUDIT_PATH ?=
+
+RUN_ARGS := web --listen $(LISTEN)
+ifneq ($(AUDIT_PATH),)
+RUN_ARGS += --audit-path $(AUDIT_PATH)
+endif
+
+.PHONY: run build test
+
+run:
+	go run ./cmd/bee $(RUN_ARGS)
+
+build:
+	go build -o bee ./cmd/bee
+
+test:
+	go test ./...