fix(aurral): bump to Node 26 and bypass strict engine pin (#17543)

* fix: bump aurral Node.js requirement from 22 to 26

Upstream aurral now requires Node 26.x (engines: "26.8.x" in v2.10.0),
causing npm ci to fail with EBADENGINE when the install script sets up
Node 22.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix: bypass npm engine-strict check for aurral build

aurral's .npmrc sets engine-strict=true and pins an exact node patch
(26.8.x), which NodeSource can never satisfy since it only ships the
latest patch per major (currently 26.10.0). Disable engine-strict for
the build, matching the ignore-engines workaround already used for
yarn-based apps in this repo (dashy, monica, excalidraw,
elementsynapse).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

ct/aurral.sh

@@ -38,13 +38,16 @@ function update_script() {
     msg_ok "Stopped Service"
 
     CLEAN_INSTALL=1 fetch_and_deploy_gh_release "aurral" "lklynet/aurral" "tarball"
-    NODE_VERSION="22" setup_nodejs
+    NODE_VERSION="26" setup_nodejs
 
     msg_info "Updating Aurral"
     cd /opt/aurral
     export VITE_APP_VERSION="$(cat ~/.aurral)"
     export VITE_GITHUB_REPO="lklynet/aurral"
     export VITE_RELEASE_CHANNEL="stable"
+    # aurral's .npmrc sets engine-strict=true and pins an exact node patch (e.g. 26.8.x),
+    # which NodeSource can't match since it only ships the latest patch per major.
+    export npm_config_engine_strict=false
     $STD npm ci --workspace frontend --include-workspace-root=false
     $STD npm run build --workspace frontend
     $STD npm ci --workspace backend --omit=dev --include=optional --include-workspace-root=false