Miscellaneous fixes (#23201)

* sync filter entries with track and listen labels

- Auto-populate `audio.filters` from `audio.listen` instead of the full audio labelmap, matching how `objects.filters` is keyed by `track` (no longer need to populate the full audio labelmap, which was added in #22630)
- Synthesize the matching filter entries in the settings form on load so each track/listen label shows its collapsible after a profile is selected, since the backend's auto-populate only runs at config init

* translate main label for lifecycle description with attribute

* reject restricted go2rtc stream sources when added via api

* add env var check function

web/src/components/config-form/sections/BaseSection.tsx

@@ -22,7 +22,7 @@ import {
   modifySchemaForSection,
   getEffectiveDefaultsForSection,
   sanitizeOverridesForSection,
-  synthesizeMissingObjectFilters,
+  synthesizeMissingFilters,
 } from "./section-special-cases";
 import { getSectionValidation } from "../section-validations";
 import { useConfigOverride } from "@/hooks/use-config-override";
@@ -370,7 +370,7 @@ export function ConfigSection({
       return {};
     }
 
-    return synthesizeMissingObjectFilters(
+    return synthesizeMissingFilters(
       sectionPath,
       rawSectionValue,
       modifiedSchema ?? undefined,

web/src/components/config-form/sections/section-special-cases.ts

@@ -128,22 +128,31 @@ export function getEffectiveDefaultsForSection(
   return schemaDefaults;
 }
 
+// Sections whose `filters` dict is keyed by a sibling list field. The backend
+// auto-populates these filters at config init but doesn't re-run after profile
+// merges, so we synthesize the missing entries on the frontend.
+const FILTER_SECTIONS: Record<string, { listField: string }> = {
+  objects: { listField: "track" },
+  audio: { listField: "listen" },
+};
+
 /**
- * Add default filter entries for any label in `objects.track` that isn't
- * already in `objects.filters`, so each tracked label gets a collapsible.
- * The backend only auto-populates filters at config init, not after profile
- * merges.
+ * Add default filter entries for any label in the section's list field
+ * (e.g. `objects.track`, `audio.listen`) that isn't already in `filters`, so
+ * each label gets a collapsible. The backend only auto-populates filters at
+ * config init, not after profile merges.
  */
-export function synthesizeMissingObjectFilters(
+export function synthesizeMissingFilters(
   sectionPath: string,
   data: unknown,
   sectionSchema: RJSFSchema | undefined,
 ): unknown {
-  if (sectionPath !== "objects") return data;
+  const sectionConfig = FILTER_SECTIONS[sectionPath];
+  if (!sectionConfig) return data;
   if (!isJsonObject(data)) return data;
 
-  const trackValue = (data as JsonObject).track;
-  if (!Array.isArray(trackValue) || trackValue.length === 0) return data;
+  const listValue = (data as JsonObject)[sectionConfig.listField];
+  if (!Array.isArray(listValue) || listValue.length === 0) return data;
 
   const properties = (sectionSchema as { properties?: Record<string, unknown> })
     ?.properties;
@@ -160,7 +169,7 @@ export function synthesizeMissingObjectFilters(
 
   const newFilters: JsonObject = { ...existingFilters };
   let added = false;
-  for (const label of trackValue) {
+  for (const label of listValue) {
     if (typeof label !== "string") continue;
     if (Object.prototype.hasOwnProperty.call(newFilters, label)) continue;
     newFilters[label] = (