Miscellaneous fixes (#23092)

* lpr fixes

- remove duplicate code
- fix min_area check for non frigate+ code path
- move log outside of non frigate+ code path

* only show chat link when a genai provider is configured with the chat role

* respect ui.timezone when generating fallback export names

* reapply radix pointer events fix to call sites that use navigate()

* formatting

* fall back to prior preview frame for short export thumbnails

* fix typing

* fix e2e test for chat navigation

* batch annotation offset to seek atomically and throttle slider drag

* add debug replay loading toast for explore actions

* Improve handling of webpush missing shortSummary

---------

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

web/src/hooks/use-navigation.ts

@@ -28,6 +28,14 @@ export default function useNavigation(
   });
   const isAdmin = useIsAdmin();
 
+  const hasChatAgent = useMemo(
+    () =>
+      Object.values(config?.genai ?? {}).some((agent) =>
+        agent?.roles?.includes("chat"),
+      ),
+    [config?.genai],
+  );
+
   return useMemo(
     () =>
       [
@@ -89,9 +97,9 @@ export default function useNavigation(
           icon: MdChat,
           title: "menu.chat",
           url: "/chat",
-          enabled: isDesktop && isAdmin && config?.genai?.model !== "none",
+          enabled: isDesktop && isAdmin && hasChatAgent,
         },
       ] as NavData[],
-    [config?.face_recognition?.enabled, config?.genai?.model, variant, isAdmin],
+    [config?.face_recognition?.enabled, hasChatAgent, variant, isAdmin],
   );
 }