fix(recipes): show initialization screen and auto-reload during first scan

The recipes page always rendered with is_initializing=False, so a cold
start displayed an empty grid that never updated until a manual refresh.
Mirror the model pages: gate render_page on the scanner state, broadcast
init progress from RecipeScanner (including a completion message, and a
failure fallback so the page never stalls), and teach initialization.js
to detect the /loras/recipes page before the generic /loras match.

py/routes/handlers/recipe_handlers.py

@@ -176,11 +176,19 @@ class RecipePageView:
             user_language = self._settings.get("language", "en")
             self._server_i18n.set_locale(user_language)
 
+            # While the initial scan is running, show the initialization
+            # screen (same as the model pages) instead of an empty grid; the
+            # page reloads itself when the scanner broadcasts completion.
+            is_initializing = (
+                recipe_scanner._cache is None or recipe_scanner.is_initializing()
+            )
+
             try:
-                await recipe_scanner.get_cached_data(force_refresh=False)
+                if not is_initializing:
+                    await recipe_scanner.get_cached_data(force_refresh=False)
                 rendered = self._template_env.get_template(self._template_name).render(
                     recipes=[],
-                    is_initializing=False,
+                    is_initializing=is_initializing,
                     settings=self._settings,
                     request=request,
                     t=self._server_i18n.get_translation,