Fix dict kwarg evaluation in renderComponentDOM, no-cache static in dev

Dict values (e.g. {:X-CSRFToken csrf}) passed as component kwargs were
not being evaluated through sxEval — symbols stayed unresolved in the DOM.
Also add Cache-Control: no-cache headers for /static/ in dev mode so
browser always fetches fresh JS/CSS without needing hard refresh.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

shared/infrastructure/factory.py

@@ -341,6 +341,14 @@ def create_base_app(
             response.headers["HX-Preserve-Search"] = value
         return response
 
+    # Prevent browser caching of static files in dev (forces fresh fetch on reload)
+    if app.config["NO_PAGE_CACHE"]:
+        @app.after_request
+        async def _no_cache_static(response):
+            if request.path.startswith("/static/"):
+                response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
+            return response
+
     # --- context processor ---
     if context_fn is not None:
         @app.context_processor