feat: add flag to disable hx-boost locally

.env

@@ -101,6 +101,11 @@ APP_TRAVEL_SNAPSHOT_RETENTION_BUFFER_DAYS=14
 # because the cached travels and TravelSnapshot rows carry the parsed price.
 APP_BPN_LEVEL_BOARDING_POINT_PRICES=true
 
+# Off turns every navigation into a full page load, which the web debug toolbar needs: its loader
+# script never runs on a boosted body swap. Explicit hx-get/hx-post requests are unaffected.
+# Only for local debugging; prod and the boosted code paths (HxRedirectResponse, error modal) need it on.
+APP_HTMX_BOOST=true
+
 # Emails
 APP_DEFAULT_EMAIL_FROM=[email protected]
 APP_DEFAULT_EMAIL_TO=[email protected]