Add Kubernetes-based sandbox provider for multi-instance support (#19)

* feat: adds docker-based dev environment

* docs: updates Docker command help

* fix local dev

* feat(sandbox): add Kubernetes-based sandbox provider for multi-instance support

* fix: skills path in k8s

* feat: add example config for k8s sandbox

* fix: docker config

* fix: load skills on docker dev

* feat: support sandbox execution to Kubernetes Deployment model

* chore: rename web service name

frontend/Dockerfile

@@ -12,5 +12,11 @@ RUN pnpm config set store-dir ${PNPM_STORE_PATH}
 # Set working directory
 WORKDIR /app
 
+# Copy frontend source code
+COPY frontend ./frontend
+
+# Install dependencies
+RUN sh -c "cd /app/frontend && pnpm install --frozen-lockfile"
+
 # Expose Next.js dev server port
 EXPOSE 3000