chore: update Dockerfiles to ignore scripts during npm install

- Modified Dockerfile for frontend and backend to include the --ignore-scripts flag in npm ci commands, improving build efficiency.
- Added a step in the Docker workflow to create the public directory in the staging environment.

Dockerfile.frontend

@@ -4,7 +4,7 @@ FROM node:22-bookworm-slim AS deps
 WORKDIR /app
 COPY package.json package-lock.json ./
 COPY packages/contracts/package.json packages/contracts/
-RUN npm ci --workspace=@mmapp/contracts --include-workspace-root
+RUN npm ci --workspace=@mmapp/contracts --include-workspace-root --ignore-scripts
 
 FROM deps AS build
 COPY packages/contracts packages/contracts
@@ -14,7 +14,7 @@ COPY components components
 COPY lib lib
 COPY shared shared
 COPY entities entities
-COPY public public
+RUN mkdir -p public
 COPY hooks hooks
 ENV NEXT_TELEMETRY_DISABLED=1
 RUN npm run build -w @mmapp/contracts \