feat: initialize nuntius project with full server implementation

justfile

@@ -0,0 +1,27 @@
+set dotenv-load := false
+set positional-arguments := false
+
+default:
+	@just --list
+
+install:
+	@echo "→ Installing Go module dependencies…"
+	go mod tidy
+	go mod download
+
+uninstall:
+	@echo "→ Removing ./bin…"
+	rm -rf bin
+
+# Run the server in dev mode
+run:
+	go run ./cmd/server
+
+build:
+	@echo "→ Building for production…"
+	@mkdir -p bin
+	go build -ldflags="-s -w" -o bin/nuntius ./cmd/server
+
+test:
+	@echo "→ Running tests…"
+	go test ./...