feat: 🎉 Vectors na Vectors, the begining

Translate 1536 <-> 768 , 3072 <-> 2048

Makefile

@@ -0,0 +1,63 @@
+BINARY   := vecna
+CMD      := ./cmd/vecna
+BUILD_DIR := ./bin
+
+BUMP     ?= patch
+TEST_URL ?=
+TEST_MODEL ?=
+
+.PHONY: all build test lint fmt tidy clean release-version test-integration
+
+all: tidy fmt lint test build
+
+build:
+	mkdir -p $(BUILD_DIR)
+	go build -o $(BUILD_DIR)/$(BINARY) $(CMD)
+
+test:
+	go test ./...
+
+lint:
+	golangci-lint run ./...
+
+fmt:
+	golangci-lint run --fix ./...
+	gofmt -w .
+
+tidy:
+	go mod tidy
+
+clean:
+	rm -rf $(BUILD_DIR)
+
+# Run dimension integration tests against a live embedding server.
+# Requires VECNA_TEST_URL and VECNA_TEST_MODEL to be set.
+#
+# Examples:
+#   make test-integration TEST_URL=http://localhost:11434 TEST_MODEL=nomic-embed-text
+#   make test-integration TEST_URL=http://localhost:11434 TEST_MODEL=nomic-embed-text VECNA_TEST_TARGET_DIM=256
+#
+test-integration:
+	@if [ -z "$(TEST_URL)" ]; then echo "ERROR: TEST_URL is required"; exit 1; fi
+	@if [ -z "$(TEST_MODEL)" ]; then echo "ERROR: TEST_MODEL is required"; exit 1; fi
+	VECNA_TEST_URL=$(TEST_URL) \
+	VECNA_TEST_MODEL=$(TEST_MODEL) \
+	VECNA_TEST_API_TYPE=$(or $(TEST_API_TYPE),openai) \
+	VECNA_TEST_API_KEY=$(TEST_API_KEY) \
+	go test -v -tags integration -timeout 120s ./tests/integration/
+
+release-version:
+	@current=$$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0"); \
+	major=$$(echo $$current | sed 's/^v//' | cut -d. -f1); \
+	minor=$$(echo $$current | sed 's/^v//' | cut -d. -f2); \
+	patch=$$(echo $$current | sed 's/^v//' | cut -d. -f3); \
+	case "$(BUMP)" in \
+	  major) major=$$((major+1)); minor=0; patch=0 ;; \
+	  minor) minor=$$((minor+1)); patch=0 ;; \
+	  patch) patch=$$((patch+1)) ;; \
+	  *) echo "Unknown BUMP value '$(BUMP)'. Use: patch (default), minor, major"; exit 1 ;; \
+	esac; \
+	next="v$${major}.$${minor}.$${patch}"; \
+	echo "Tagging $$current → $$next"; \
+	git tag -a "$$next" -m "Release $$next"; \
+	git push origin "$$next"