feat(companion): validate event wait helper input names

src/companion/runtimeClient.ts

@@ -437,6 +437,9 @@ export class CompanionRuntimeClient {
       signal?: AbortSignal;
     },
   ): Promise<TData> {
+    if (eventName.trim().length === 0) {
+      throw new Error('eventName must be a non-empty string');
+    }
     const timeoutMs = options?.timeoutMs ?? this.requestTimeoutMs;
     const predicate = options?.predicate;
     const signal = options?.signal;
@@ -502,6 +505,9 @@ export class CompanionRuntimeClient {
     if (eventNames.length === 0) {
       throw new Error('eventNames must contain at least one event name');
     }
+    if (eventNames.some((eventName) => eventName.trim().length === 0)) {
+      throw new Error('eventNames must not contain empty values');
+    }
     const eventNameSet = new Set(eventNames);
     const timeoutMs = options?.timeoutMs ?? this.requestTimeoutMs;
     const predicate = options?.predicate;