delete references to required_zones when a zone is deleted

cover all cases in review alerts/detections, genai, snapshots, mqtt

autotracking will fail backend validation if the user tries to delete the required zone, so they will just need to reassign the zone before deleting

web/src/components/settings/PolygonItem.tsx

@@ -27,7 +27,7 @@ import axios from "axios";
 import { toast } from "sonner";
 import useSWR from "swr";
 import { FrigateConfig } from "@/types/frigateConfig";
-import { reviewQueries } from "@/utils/zoneEdutUtil";
+import { removeRequiredZoneQuery, reviewQueries } from "@/utils/zoneEdutUtil";
 import IconWrapper from "../ui/icon-wrapper";
 import { buttonVariants } from "@/components/ui/button";
 import { Trans, useTranslation } from "react-i18next";
@@ -153,6 +153,30 @@ export default function PolygonItem({
             cameraConfig?.review.alerts.required_zones || [],
             cameraConfig?.review.detections.required_zones || [],
           );
+          const genaiQueries = removeRequiredZoneQuery(
+            polygon.name,
+            polygon.camera,
+            "objects.genai",
+            cameraConfig?.objects.genai.required_zones || [],
+          );
+          const snapshotQueries = removeRequiredZoneQuery(
+            polygon.name,
+            polygon.camera,
+            "snapshots",
+            cameraConfig?.snapshots.required_zones || [],
+          );
+          const mqttQueries = removeRequiredZoneQuery(
+            polygon.name,
+            polygon.camera,
+            "mqtt",
+            cameraConfig?.mqtt.required_zones || [],
+          );
+          const autotrackQueries = removeRequiredZoneQuery(
+            polygon.name,
+            polygon.camera,
+            "onvif.autotracking",
+            cameraConfig?.onvif.autotracking.required_zones || [],
+          );
           // Also delete from profiles that have overrides for this zone
           let profileQueries = "";
           if (allProfileNames && cameraConfig) {
@@ -165,7 +189,7 @@ export default function PolygonItem({
               }
             }
           }
-          url = `cameras.${polygon.camera}.zones.${polygon.name}${alertQueries}${detectionQueries}${profileQueries}`;
+          url = `cameras.${polygon.camera}.zones.${polygon.name}${alertQueries}${detectionQueries}${genaiQueries}${snapshotQueries}${mqttQueries}${autotrackQueries}${profileQueries}`;
         }
 
         await axios

web/src/utils/zoneEdutUtil.ts

@@ -1,3 +1,33 @@
+// Build a config/set query fragment that removes `name` from a
+// required_zones list on the given camera section (e.g. "snapshots",
+// "mqtt", "objects.genai", "onvif.autotracking"), rebuilding the
+// remaining entries. When removing the name empties the list, the
+// required_zones key itself is deleted so the field reverts to its
+// default instead of retaining the now-stale zone name. Returns an empty
+// string when `name` is not present so unrelated sections are untouched.
+export const removeRequiredZoneQuery = (
+  name: string,
+  camera: string,
+  section: string,
+  zones: string[],
+) => {
+  const remaining = new Set<string>(zones || []);
+
+  if (!remaining.has(name)) {
+    return "";
+  }
+
+  remaining.delete(name);
+
+  const key = `cameras.${camera}.${section}.required_zones`;
+
+  if (remaining.size === 0) {
+    return `&${key}`;
+  }
+
+  return [...remaining].map((zone) => `&${key}=${zone}`).join("");
+};
+
 export const reviewQueries = (
   name: string,
   review_alerts: boolean,