Add isolated read-only official widget integration and searchable catalog

pigway_frame_flow/drivers/kokonna/driver.py

@@ -8,8 +8,9 @@ from pigway_frame_flow.models import (
 
 
 class KokonnaDriver:
-    def __init__(self, client, device_id, sanitize=lambda v: v):
+    def __init__(self, client, device_id, sanitize=lambda v: v, widgets=None):
         self.client, self.device_id, self.sanitize = client, device_id, sanitize
+        self.widget_reader = widgets
         self.cached: Device | None = None
         self.cached_at = 0.0
 
@@ -62,6 +63,9 @@ class KokonnaDriver:
         self.cached_at = time.monotonic()
         return result
 
+    def widgets(self):
+        return self.widget_reader.read()
+
     def get_current_image(self):
         return self.device().current_content.id