feat: Add GPU-specific Ray worker images with CI/CD

- Add Dockerfiles for nvidia, rdna2, strixhalo, and intel GPU targets
- Add ray-serve modules (embeddings, whisper, tts, llm, reranker)
- Add Gitea Actions workflow for automated builds
- Add Makefile for local development
- Update README with comprehensive documentation

Makefile

@@ -0,0 +1,93 @@
+# KubeRay Images Makefile
+# Build and push GPU-specific Ray worker images
+
+REGISTRY := git.daviestechlabs.io/daviestechlabs
+TAG := latest
+
+# Image names
+IMAGES := ray-worker-nvidia ray-worker-rdna2 ray-worker-strixhalo ray-worker-intel
+
+.PHONY: all build-all push-all clean help $(addprefix build-,$(IMAGES)) $(addprefix push-,$(IMAGES))
+
+help:
+	@echo "KubeRay Images Build System"
+	@echo ""
+	@echo "Usage:"
+	@echo "  make build-all          Build all images"
+	@echo "  make push-all           Push all images to registry"
+	@echo "  make build-nvidia       Build NVIDIA worker image"
+	@echo "  make build-rdna2        Build AMD RDNA2 worker image"
+	@echo "  make build-strixhalo    Build AMD Strix Halo worker image"
+	@echo "  make build-intel        Build Intel XPU worker image"
+	@echo "  make push-nvidia        Push NVIDIA worker image"
+	@echo "  make TAG=v1.0.0 push-all  Push with specific tag"
+	@echo ""
+	@echo "Environment:"
+	@echo "  REGISTRY=$(REGISTRY)"
+	@echo "  TAG=$(TAG)"
+
+# Build targets
+build-nvidia:
+	docker build \
+		-t $(REGISTRY)/ray-worker-nvidia:$(TAG) \
+		-f dockerfiles/Dockerfile.ray-worker-nvidia \
+		.
+
+build-rdna2:
+	docker build \
+		-t $(REGISTRY)/ray-worker-rdna2:$(TAG) \
+		-f dockerfiles/Dockerfile.ray-worker-rdna2 \
+		.
+
+build-strixhalo:
+	docker build \
+		-t $(REGISTRY)/ray-worker-strixhalo:$(TAG) \
+		-f dockerfiles/Dockerfile.ray-worker-strixhalo \
+		.
+
+build-intel:
+	docker build \
+		-t $(REGISTRY)/ray-worker-intel:$(TAG) \
+		-f dockerfiles/Dockerfile.ray-worker-intel \
+		.
+
+build-all: build-nvidia build-rdna2 build-strixhalo build-intel
+	@echo "All images built successfully"
+
+# Push targets
+push-nvidia:
+	docker push $(REGISTRY)/ray-worker-nvidia:$(TAG)
+
+push-rdna2:
+	docker push $(REGISTRY)/ray-worker-rdna2:$(TAG)
+
+push-strixhalo:
+	docker push $(REGISTRY)/ray-worker-strixhalo:$(TAG)
+
+push-intel:
+	docker push $(REGISTRY)/ray-worker-intel:$(TAG)
+
+push-all: push-nvidia push-rdna2 push-strixhalo push-intel
+	@echo "All images pushed successfully"
+
+# Tag and push with both latest and version tag
+release:
+ifndef VERSION
+	$(error VERSION is not set. Usage: make VERSION=v1.0.0 release)
+endif
+	@echo "Releasing version $(VERSION)"
+	$(MAKE) TAG=$(VERSION) build-all
+	$(MAKE) TAG=$(VERSION) push-all
+	$(MAKE) TAG=latest build-all
+	$(MAKE) TAG=latest push-all
+
+# Login to registry
+login:
+	docker login $(REGISTRY)
+
+# Clean local images
+clean:
+	-docker rmi $(REGISTRY)/ray-worker-nvidia:$(TAG)
+	-docker rmi $(REGISTRY)/ray-worker-rdna2:$(TAG)
+	-docker rmi $(REGISTRY)/ray-worker-strixhalo:$(TAG)
+	-docker rmi $(REGISTRY)/ray-worker-intel:$(TAG)