perf: complete history bootstrap in one streaming phase

modelhub_submmit_api/outcome_tracker.py

@@ -485,6 +485,7 @@ class OutcomeTracker:
         task_contexts: dict[str, dict[str, Any]] | None = None,
         enrichment_limit: int = 0,
         enrichment_workers: int = 8,
+        enrichment_batch_size: int = 200,
         log: Any = None,
     ) -> dict[str, int]:
         """Import terminal history and classify every usable historical failure."""
@@ -556,7 +557,7 @@ class OutcomeTracker:
         enrichment_attempts = 0
         classified_total = 0
         errors_total = 0
-        batch_size = 200
+        batch_size = max(1, int(enrichment_batch_size))
         total_candidates = len(candidates)
         for offset in range(0, total_candidates, batch_size):
             # Keep direct references until classification completes. Calling