Fix: sudo docker build context + bootstrap reexec sudo

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

bootstrap-install.sh

@@ -3,11 +3,8 @@
 #
 # Skapar INTE ny Node-RED-container. Patchar /home/ncadmin/nextcloud-node-red och bygger om.
 #
-# One-liner:
-#   curl -fsSL https://kode.hannesahlin.se/n3wk/nextcloud-collabora-nodered/raw/branch/main/bootstrap-install.sh | bash
-#
-# Som ncadmin (rekommenderat):
-#   curl -fsSL ... | sudo -u ncadmin bash
+# One-liner (kör som ncadmin, INTE root):
+#   curl -fsSL https://kode.hannesahlin.se/n3wk/nextcloud-collabora-nodered/raw/branch/main/bootstrap-install.sh | sudo -u ncadmin bash
 #
 # Om git "dubious ownership" (root ägde repot):
 #   sudo bash scripts/fix-repo-ownership.sh
@@ -64,7 +61,7 @@ reexec_as_install_user() {
         log "Kör om som ${user} (inte root)..."
         export BOOTSTRAP_REEXEC=1
         export INSTALL_DIR NODERED_DIR INSTALL_MODE GIT_REPO_URL GIT_BRANCH
-        exec run_as_root sudo -u "${user}" -H env \
+        exec sudo -u "${user}" -H env \
             BOOTSTRAP_REEXEC=1 \
             INSTALL_DIR="${INSTALL_DIR}" \
             NODERED_DIR="${NODERED_DIR}" \