sync object filter entries with tracked labels in camera config form

Filter sub-collapsibles in the camera Objects section are driven by `filters` dict keys, but profile merges and live track-switch edits don't add matching entries, so newly tracked labels (like from a profile override) had no collapsible. Synthesize default filter entries from `track` in the form data so every tracked label renders a collapsible; baseline data also gets the synthesized entries, so save payloads are unchanged.

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

@@ -22,6 +22,7 @@ import {
   modifySchemaForSection,
   getEffectiveDefaultsForSection,
   sanitizeOverridesForSection,
+  synthesizeMissingObjectFilters,
 } from "./section-special-cases";
 import { getSectionValidation } from "../section-validations";
 import { useConfigOverride } from "@/hooks/use-config-override";
@@ -357,15 +358,19 @@ export function ConfigSection({
     return get(config, sectionPath);
   }, [config, cameraName, sectionPath, effectiveLevel, profileName]);
 
-  const rawFormData = useMemo(() => {
+  const rawFormData = useMemo<ConfigSectionData>(() => {
     if (!config) return {};
 
     if (rawSectionValue === undefined || rawSectionValue === null) {
       return {};
     }
 
-    return rawSectionValue;
+    return synthesizeMissingObjectFilters(
-  }, [config, rawSectionValue]);
+      sectionPath,
+      rawSectionValue,
+      modifiedSchema ?? undefined,
+    ) as ConfigSectionData;
+  }, [config, rawSectionValue, sectionPath, modifiedSchema]);
 
   // When editing a profile, hide fields that require a restart since they
   // cannot take effect via profile switching alone.
@@ -387,7 +392,7 @@ export function ConfigSection({
     const baseData = modifiedSchema
       ? applySchemaDefaults(modifiedSchema, rawFormData)
       : rawFormData;
-    return sanitizeSectionData(baseData);
+    return sanitizeSectionData(baseData as ConfigSectionData);
   }, [rawFormData, modifiedSchema, sanitizeSectionData]);
 
   const baselineSnapshot = useMemo(() => {
@@ -506,7 +511,11 @@ export function ConfigSection({
         setPendingOverrides(undefined);
         return;
       }
-      const sanitizedData = sanitizeSectionData(data as ConfigSectionData);
+      const sanitizedData = synthesizeMissingObjectFilters(
+        sectionPath,
+        sanitizeSectionData(data as ConfigSectionData),
+        modifiedSchema ?? undefined,
+      ) as ConfigSectionData;
       const nextBaselineFormData = baselineSnapshot;
       const overrides = buildOverrides(
         sanitizedData,
@@ -546,6 +555,8 @@ export function ConfigSection({
       setPendingOverrides,
       setDirtyOverrides,
       baselineSnapshot,
+      sectionPath,
+      modifiedSchema,
     ],
   );
 

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

@@ -105,6 +105,51 @@ export function getEffectiveDefaultsForSection(
   return schemaDefaults;
 }
 
+/**
+ * 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 or live track edits.
+ */
+export function synthesizeMissingObjectFilters(
+  sectionPath: string,
+  data: unknown,
+  sectionSchema: RJSFSchema | undefined,
+): unknown {
+  if (sectionPath !== "objects") return data;
+  if (!isJsonObject(data)) return data;
+
+  const trackValue = (data as JsonObject).track;
+  if (!Array.isArray(trackValue) || trackValue.length === 0) return data;
+
+  const properties = (sectionSchema as { properties?: Record<string, unknown> })
+    ?.properties;
+  const filtersSchema = isJsonObject(properties)
+    ? (properties.filters as { additionalProperties?: unknown } | undefined)
+    : undefined;
+  const filterEntrySchema = isJsonObject(filtersSchema?.additionalProperties)
+    ? (filtersSchema.additionalProperties as RJSFSchema)
+    : undefined;
+
+  const existingFilters = isJsonObject((data as JsonObject).filters)
+    ? ((data as JsonObject).filters as JsonObject)
+    : {};
+
+  const newFilters: JsonObject = { ...existingFilters };
+  let added = false;
+  for (const label of trackValue) {
+    if (typeof label !== "string") continue;
+    if (Object.prototype.hasOwnProperty.call(newFilters, label)) continue;
+    newFilters[label] = (
+      filterEntrySchema ? applySchemaDefaults(filterEntrySchema, {}) : {}
+    ) as JsonValue;
+    added = true;
+  }
+
+  if (!added) return data;
+  return { ...(data as JsonObject), filters: newFilters };
+}
+
 /**
  * Sanitize overrides payloads for section-specific quirks.
  */