Fix mirror hostname and protocol (soroushasad.com, HTTP)

All references updated from mirror.soroushasadi.com (https) to
mirror.soroushasad.com (http):
  - .npmrc: registry uses http://
  - Dockerfile: syntax frontend + NODE_IMAGE ARG + npm auth line
  - docker-compose.yml: NODE_IMAGE default
  - deploy.yml: docker login/logout + NODE_IMAGE env
  - ci.yml: container image + NODE_IMAGE build-arg + npm auth line

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile

@@ -1,7 +1,7 @@
 # All base images flow through the Nexus docker-group proxy, which aggregates
 # Docker Hub, Microsoft Container Registry (mcr.microsoft.com) and GitHub
 # Container Registry (ghcr.io) behind one path — any upstream image is reachable
-# as mirror.soroushasadi.com/repository/docker-group/<image>.
+# as mirror.soroushasad.com/repository/docker-group/<image>.
 # Build directly against Docker Hub instead with:
 #   --build-arg NODE_IMAGE=node:20-slim
 ARG NODE_IMAGE=node:20-slim
@@ -19,7 +19,7 @@ RUN apt-get update \
 # image, which copies node_modules — not .npmrc.
 COPY package.json package-lock.json ./
 RUN if [ -n "$NPM_TOKEN" ]; then \
-      echo "//mirror.soroushasadi.com/repository/npm-group/:_authToken=${NPM_TOKEN}" >> .npmrc ; \
+      echo "//mirror.soroushasad.com/repository/npm-group/:_authToken=${NPM_TOKEN}" >> .npmrc ; \
     fi \
   && npm ci