phase-10.5: test case fixes and updated postman collection

server/domains/screener/ScreenerEngine.ts

@@ -35,12 +35,14 @@ export class ScreenerEngine {
   private static readonly BATCH_DELAY_MS = 1000;
 
   private logger: Logger;
+  private readonly batchDelayMs: number;
 
   constructor(
     private readonly client: YahooFinanceClient,
     private readonly benchmarkProvider: BenchmarkProvider,
-    { logger }: ScreenerEngineOptions = {},
+    { logger, batchDelayMs }: ScreenerEngineOptions = {},
   ) {
+    this.batchDelayMs = batchDelayMs ?? ScreenerEngine.BATCH_DELAY_MS;
     // eslint-disable-next-line no-console
     this.logger = logger ?? {
       write: (msg: string) => process.stdout.write(msg),
@@ -65,11 +67,12 @@ export class ScreenerEngine {
     const chunks = chunkArray(tickers, ScreenerEngine.BATCH_SIZE);
     let processed = 0;
 
-    for (const chunk of chunks) {
-      await this.processBatch(chunk, marketContext, results);
-      processed += chunk.length;
+    for (let i = 0; i < chunks.length; i++) {
+      await this.processBatch(chunks[i], marketContext, results);
+      processed += chunks[i].length;
       this.logProgress(showProgress, processed, tickers.length);
-      await this.rateLimitDelay();
+      // Rate-limit pause between batches — never after the last one
+      if (i < chunks.length - 1) await this.rateLimitDelay();
     }
 
     if (showProgress) {
@@ -110,7 +113,8 @@ export class ScreenerEngine {
   }
 
   private async rateLimitDelay(): Promise<void> {
-    await new Promise<void>((r) => setTimeout(r, ScreenerEngine.BATCH_DELAY_MS));
+    if (this.batchDelayMs <= 0) return;
+    await new Promise<void>((r) => setTimeout(r, this.batchDelayMs));
   }
 
   private async fetch(ticker: string): Promise<MappedData | ErrorResult> {