CI: copy sibling app models into build context for cross-domain imports

Phases 1-3 split models by domain ownership, but cross-app imports
still exist (e.g. cart imports market.models.CartItem). In Docker
each app only has its own code. The CI step now copies sibling app
model packages into the build context before docker build.

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

.gitea/workflows/ci.yml

@@ -39,6 +39,15 @@ jobs:
             git fetch origin ${{ github.ref_name }}
             git reset --hard origin/${{ github.ref_name }}
             git submodule update --init --recursive
+            # Copy sibling app models for cross-domain imports
+            for sibling in blog market cart events; do
+              rm -rf \$sibling/__init__.py \$sibling/models
+              if [ -d /root/rose-ash/\$sibling/models ]; then
+                mkdir -p \$sibling
+                cp /root/rose-ash/\$sibling/__init__.py \$sibling/ 2>/dev/null || touch \$sibling/__init__.py
+                cp -r /root/rose-ash/\$sibling/models \$sibling/models
+              fi
+            done
           "
 
       - name: Build and push image