Tweaks (#23292)

* add review padding to explore debug replay api calls

* add semantic search model size widget

disables model_size select with n/a text when an embeddings genai provider is selected

* regenerate zone contours and per-zone filter masks on detect resolution change

* treat null as a clear sentinel in buildOverrides so nullable field edits don't snap back

* extract replay config sheet to new component

* add validation and messages for detect settings

web/src/components/config-form/LiveFormDataContext.ts

@@ -0,0 +1,13 @@
+import { createContext } from "react";
+import type { ConfigSectionData } from "@/types/configForm";
+
+// Mirrors the current section's in-flight form data so widgets can react
+// to changes that RJSF wouldn't otherwise re-render them for. RJSF's
+// Form memoizes SchemaField via deep equality and, in some transitions
+// (notably reverting a field to its saved value), can skip re-rendering
+// a widget even though the form data it depends on changed. useContext
+// re-runs consumers directly on every provider value update, sidestepping
+// that.
+export const LiveFormDataContext = createContext<ConfigSectionData | null>(
+  null,
+);