Initial commit: Rampart v0.2.0

Multi-layer DDoS protection for Minecraft servers.

- rampart-core: Edge node with XDP/eBPF + Rust L7 filtering
- rampart-manager: REST API with JWT auth, Redis sync
- rampart-cli: CLI tool for operators
- velocity-plugin: Domain check, HMAC verify, server registry, load balancer
- paper-plugin: Auto-registration, heartbeat, HMAC verify
- dashboard: React + Vite web UI for management

Makefile

@@ -0,0 +1,54 @@
+# Rampart — Build System
+
+CARGO = cargo
+TARGET_DIR = target
+GRADLE = gradle
+
+.PHONY: all build test check fmt clippy clean release plugins
+
+all: check test build
+
+build:
+	$(CARGO) build
+
+release:
+	$(CARGO) build --release
+
+check:
+	$(CARGO) check
+
+test:
+	$(CARGO) test
+
+fmt:
+	$(CARGO) fmt --all
+
+fmt-check:
+	$(CARGO) fmt --all --check
+
+clippy:
+	$(CARGO) clippy -- -D warnings
+
+clean:
+	$(CARGO) clean
+
+plugins:
+	cd plugins && ./gradlew build
+
+docker-build: plugins
+	docker compose -f deploy/docker-compose.yml build
+
+docker-up: docker-build
+	docker compose -f deploy/docker-compose.yml up -d
+
+docker-down:
+	docker compose -f deploy/docker-compose.yml down
+
+docker-logs:
+	docker compose -f deploy/docker-compose.yml logs -f
+
+# Full checkstyle (analog of Java's checkstyle + PMD + spotbugs)
+checkstyle: fmt-check clippy
+	@echo "✓ Checkstyle passed (rustfmt + clippy)"
+
+ci: checkstyle test build