feat(deploy): enhance deployment scripts with skip options for backend and frontend

- Updated `deploy-yourpart-bluegreen.sh` to pass additional arguments for skipping backend or frontend updates.
- Enhanced `update.sh` to handle `--skip-backend` and `--skip-frontend` flags, allowing for more flexible deployment based on changes detected.
- Modified deployment workflow to conditionally execute based on changes in frontend or backend files, improving deployment efficiency.

.gitea/workflows/deploy.yml

@@ -37,6 +37,28 @@ jobs:
             echo "changed=false" >> "$GITHUB_OUTPUT"
           fi
 
+          if grep -E '^frontend/' changed-files.txt >/dev/null; then
+            echo "frontend_changed=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "frontend_changed=false" >> "$GITHUB_OUTPUT"
+          fi
+
+          if grep -E '^backend/' changed-files.txt \
+            | grep -Ev '^(backend/scripts/.*(bisaya|course|didactics|vocab)|backend/sql/.*vocab|backend/migrations/.*vocab)$' >/dev/null; then
+            echo "backend_app_changed=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "backend_app_changed=false" >> "$GITHUB_OUTPUT"
+          fi
+
+          # App-Code-Änderungen, die einen echten Deploy benötigen
+          # (Frontend oder Backend außerhalb reiner Kurs-/Dokument-Sync-Dateien)
+          if grep -E '^(frontend/|backend/)' changed-files.txt \
+            | grep -Ev '^(backend/scripts/.*(bisaya|course|didactics|vocab)|backend/sql/.*vocab|backend/migrations/.*vocab|docs/.*(COURSE|VOCAB|BISAYA|GERMAN_FOR_BISAYA))'; then
+            echo "app_changed=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "app_changed=false" >> "$GITHUB_OUTPUT"
+          fi
+
       - name: Prepare SSH
         run: |
           mkdir -p ~/.ssh
@@ -54,11 +76,32 @@ jobs:
             "echo SSH OK"
 
       - name: Run deployment script
+        if: steps.vocab_course_changes.outputs.app_changed == 'true'
         run: |
+          DEPLOY_FLAGS=""
+          if [ "${{ steps.vocab_course_changes.outputs.backend_app_changed }}" = "true" ] && [ "${{ steps.vocab_course_changes.outputs.frontend_changed }}" != "true" ]; then
+            DEPLOY_FLAGS="--skip-frontend"
+          elif [ "${{ steps.vocab_course_changes.outputs.frontend_changed }}" = "true" ] && [ "${{ steps.vocab_course_changes.outputs.backend_app_changed }}" != "true" ]; then
+            DEPLOY_FLAGS="--skip-backend"
+          fi
+
+          DEPLOY_TARGET="${{ secrets.PROD_DEPLOY_TARGET }}"
+          if [ -z "$DEPLOY_TARGET" ]; then
+            DEPLOY_TARGET="/opt/yourpart-green"
+          fi
+
+          echo "Deploy-Flags: ${DEPLOY_FLAGS:-<none>}"
+          echo "Deploy-Target: $DEPLOY_TARGET"
+
           ssh -i ~/.ssh/id_ed25519 \
             -p "${{ secrets.PROD_PORT }}" \
             "${{ secrets.PROD_USER }}@${{ secrets.PROD_HOST }}" \
-            "/home/tsschulz/deploy-yourpart-bluegreen.sh"
+            "/home/tsschulz/deploy-yourpart-bluegreen.sh ${DEPLOY_TARGET} ${DEPLOY_FLAGS}"
+
+      - name: Skip full deployment (no app changes)
+        if: steps.vocab_course_changes.outputs.app_changed != 'true'
+        run: |
+          echo "Kein Full-Deploy: Es wurden keine Frontend/Backend-App-Dateien geändert."
 
       - name: Sync vocab course content
         if: steps.vocab_course_changes.outputs.changed == 'true'