fix(rag): docker cp into /workspace_scripts, then copy at runtime

docker cp fails when target dir doesn't exist in a created container.
Copy scripts to /workspace_scripts, then cp them at container start.

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

.gitea/workflows/rag-ingest.yaml

@@ -80,6 +80,8 @@ jobs:
             sh -c "
               apk add --no-cache curl bash coreutils git python3 unzip > /dev/null 2>&1
               mkdir -p /tmp/rag-ingestion/{pdfs,repos,texts}
+              mkdir -p /workspace/scripts
+              cp -r /workspace_scripts/* /workspace/scripts/ 2>/dev/null || true
               cd /workspace
               if [ '${PHASE}' = 'all' ]; then
                 bash scripts/ingest-legal-corpus.sh
@@ -96,8 +98,8 @@ jobs:
 
           echo "Container: $CONTAINER_ID"
 
-          # Scripts aus dem Git-Checkout in den Container kopieren
-          docker cp scripts/. "${CONTAINER_ID}:/workspace/scripts/"
+          # Workspace-Dir im Container anlegen und Scripts hineinkopieren
+          docker cp scripts "${CONTAINER_ID}:/workspace_scripts"
           echo "Scripts kopiert (aus Git-Checkout)"
 
           # Container starten und Output streamen