Correct mirror hostname to soroushasadi.com, HTTP protocol

Previous commit introduced a typo (soroushasad vs soroushasadi).
All references now use:
  npm    -> http://mirror.soroushasadi.com/repository/npm-group/
  docker -> mirror.soroushasadi.com/repository/docker-group/  (no protocol in image refs)

Also restore Dockerfile ARG NPM_TOKEN + COPY .npmrc that were lost
when the soroush-cicd skill regenerated the file, and set the
NODE_IMAGE ARG default back to the mirror path.

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

docker-compose.yml

@@ -6,7 +6,7 @@ services:
       context: .
       dockerfile: Dockerfile
       args:
-        NODE_IMAGE: ${NODE_IMAGE:-mirror.soroushasad.com/repository/docker-group/node:20-slim}
+        NODE_IMAGE: ${NODE_IMAGE:-mirror.soroushasadi.com/repository/docker-group/node:20-slim}
         NPM_TOKEN: ${NPM_TOKEN:-}
     image: soroushasadi-site:latest
     container_name: soroushasadi-site