feat: manual deploy-app workflow for apps/ with build support

Add workflow_dispatch-only deploy-app action, deploy-app.sh script,
apps/_template for Cursor, and SOUL/README split between static
webhook deploy and app compose profiles.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/_template/workflow-deploy.yml.template

@@ -0,0 +1,19 @@
+# Deploy <slug>
+
+on:
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build and deploy on boka
+        env:
+          DEPLOY_ROOT: ${{ secrets.DEPLOY_ROOT }}
+          DEPLOY_GIT_TOKEN: ${{ secrets.DEPLOY_GIT_TOKEN }}
+        run: |
+          chmod +x scripts/deploy-app.sh
+          DEPLOY_ROOT="${DEPLOY_ROOT:-/home/frank/playground.schwenk.online}" \
+          DEPLOY_GIT_TOKEN="$DEPLOY_GIT_TOKEN" \
+            scripts/deploy-app.sh "<slug>"