chore: move repo to ~/rose-ash/ and add configurable CI paths

REPO_DIR points to /root/rose-ash/blog, COOP_DIR to /root/coop.

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

.gitea/workflows/ci.yml

@@ -7,7 +7,8 @@ on:
 env:
   REGISTRY: registry.rose-ash.com:5000
   IMAGE: blog
-  REPO_DIR: /root/blog
+  REPO_DIR: /root/rose-ash/blog
+  COOP_DIR: /root/coop
 
 jobs:
   build-and-deploy:
@@ -58,7 +59,7 @@ jobs:
           DEPLOY_HOST: ${{ secrets.DEPLOY_HOST }}
         run: |
           ssh "root@$DEPLOY_HOST" "
-            cd /root/coop
+            cd ${{ env.COOP_DIR }}
             source .env
             docker stack deploy -c docker-compose.yml coop
             echo 'Waiting for services to update...'