Evaluation: redirect sessions to repo-local .eval_sessions via helper; apply across entrypoints; add tests (#10540)

Co-authored-by: openhands <openhands@all-hands.dev>

evaluation/benchmarks/swe_bench/run_infer.py

@@ -32,6 +32,7 @@ from evaluation.utils.shared import (
     codeact_user_response,
     get_default_sandbox_config_for_eval,
     get_metrics,
+    get_openhands_config_for_eval,
     is_fatal_evaluation_error,
     make_metadata,
     prepare_dataset,
@@ -227,16 +228,11 @@ def get_config(
         instance_id=instance['instance_id'],
     )
 
-    config = OpenHandsConfig(
-        default_agent=metadata.agent_class,
-        run_as_openhands=False,
-        max_iterations=metadata.max_iterations,
+    config = get_openhands_config_for_eval(
+        metadata=metadata,
         enable_browser=RUN_WITH_BROWSING,
         runtime=os.environ.get('RUNTIME', 'docker'),
-        sandbox=sandbox_config,
-        # do not mount workspace
-        workspace_base=None,
-        workspace_mount_path=None,
+        sandbox_config=sandbox_config,
     )
 
     config.set_llm_config(