Add Deep Research extraction controls

src/task_scheduler.py

@@ -1551,6 +1551,8 @@ class TaskScheduler:
             pass
 
         max_tokens = int(get_setting("research_max_tokens", 8192))
+        extraction_timeout = int(get_setting("research_extraction_timeout_seconds", 90) or 90)
+        extraction_concurrency = int(get_setting("research_extraction_concurrency", 3) or 3)
 
         researcher = DeepResearcher(
             llm_endpoint=endpoint_url,
@@ -1559,6 +1561,8 @@ class TaskScheduler:
             max_rounds=8,
             max_time=600,  # 10 min for scheduled research
             max_report_tokens=max_tokens,
+            extraction_timeout=extraction_timeout,
+            extraction_concurrency=extraction_concurrency,
         )
 
         started_ts = time.time()