fix(voice): preserve analyst result and tracking contracts

keep contacts counts, rows, scope and provenance on one retained snapshot

report capped cohorts as lower bounds

separate sibling tool cancellation from newer user turns

align track_entity validation across runtime and benchmark paths

scripts/voice-bench/grade.mjs

@@ -153,7 +153,7 @@ const TYPE_CHECKS = {
 };
 
 /**
- * Validate `value` against a JSON schema (type / enum / required /
+ * Validate `value` against a JSON schema (type / enum / anyOf / required /
  * properties / additionalProperties:false / items / min/max bounds).
  * Returns a list of human-readable violations; empty means valid.
  */
@@ -170,6 +170,12 @@ export function validateArgs(schema, value, where = 'args') {
   if (schema.enum && !schema.enum.includes(value)) {
     errors.push(`${where}=${JSON.stringify(value)} is not one of ${schema.enum.join(', ')}`);
   }
+  if (typeof value === 'string') {
+    if (typeof schema.minLength === 'number' && value.length < schema.minLength)
+      errors.push(`${where} needs at least ${schema.minLength} characters`);
+    if (typeof schema.pattern === 'string' && !new RegExp(schema.pattern).test(value))
+      errors.push(`${where} does not match ${schema.pattern}`);
+  }
   if (typeof value === 'number') {
     if (typeof schema.minimum === 'number' && value < schema.minimum) errors.push(`${where} below ${schema.minimum}`);
     if (typeof schema.maximum === 'number' && value > schema.maximum) errors.push(`${where} above ${schema.maximum}`);
@@ -191,6 +197,13 @@ export function validateArgs(schema, value, where = 'args') {
       errors.push(...validateArgs(sub, v, `${where}.${key}`));
     }
   }
+  if (Array.isArray(schema.anyOf)) {
+    const branches = schema.anyOf.map((branch) =>
+      validateArgs(branch, value, where),
+    );
+    if (!branches.some((branchErrors) => branchErrors.length === 0))
+      errors.push(`${where} does not match any allowed shape`);
+  }
   return errors;
 }