Miscellaneous fixes (#23258)

* render orphaned filter entries as collapsibles instead of the Key/Value editor

* Symlink for various AI files

* change replay confg dialog to platform aware sheet

* change agents title

* fix test

* tweak collapsible

* remove camera ui section in settings

no point to having it anymore with profiles and camera management settings

* fix admin response cache leak to non-admin users via nginx proxy_cache

* add model fetcher endpoint for genai config ui

---------

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

frigate/config/camera/genai.py

@@ -37,7 +37,7 @@ class GenAIConfig(FrigateBaseModel):
         description="Base URL for self-hosted or compatible providers (for example an Ollama instance).",
     )
     model: str = Field(
-        default="gpt-4o",
+        default="",
         title="Model",
         description="The model to use from the provider for generating descriptions or summaries.",
     )