chore: reintroduce openapi.json copy step in Dockerfile.docs

- Added a step to copy openapi.json to the docs public folder, necessary for both generation and build processes.
- This change ensures that the OpenAPI documentation is correctly accessible during the Docker build.

.gitignore

@@ -40,3 +40,7 @@ yarn-error.log*
 # Misc
 .DS_Store
 *.pem
+
+# Generated files
+apps/docs/public/openapi.json
+apps/docs/content/docs/api/generated/

Dockerfile.docs

@@ -11,6 +11,10 @@ WORKDIR /usr/src/app
 # Install dependencies
 RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --filter=./apps/docs --frozen-lockfile
 
+# Copy openapi.json to docs public folder (needed for both generation and build)
+RUN mkdir -p /usr/src/app/apps/docs/public && \
+    cp /usr/src/app/public/openapi.json /usr/src/app/apps/docs/public/openapi.json
+
 # Generate OpenAPI documentation
 RUN pnpm --filter=./apps/docs run build:docs