feat: dynamically clean incompatible architectures

tests/test_poll_policy.py

@@ -1,8 +1,11 @@
 from __future__ import annotations
 
 import argparse
+import json
 import sys
+import tempfile
 import unittest
+from datetime import datetime, timezone
 from pathlib import Path
 
 
@@ -11,10 +14,48 @@ if str(PACKAGE_DIR) in sys.path:
     sys.path.remove(str(PACKAGE_DIR))
 sys.path.insert(0, str(PACKAGE_DIR))
 
-from poll_runner import resolve_age_cleanup_policy  # noqa: E402
+from outcome_tracker import OutcomeTracker  # noqa: E402
+from poll_runner import _load_task_compatibility_contexts, resolve_age_cleanup_policy  # noqa: E402
 
 
 class PollPolicyTests(unittest.TestCase):
+    def test_cleanup_contexts_merge_outcomes_with_older_ledger_entries(self) -> None:
+        with tempfile.TemporaryDirectory() as temporary_dir:
+            root = Path(temporary_dir)
+            tracker = OutcomeTracker(root / "outcomes.jsonl")
+            tracker.record_submission(
+                "owner/new",
+                "gpu-a",
+                "vllm",
+                "text-generation",
+                "task-new",
+                datetime.now(timezone.utc).isoformat(),
+                model_profile={"architectures": ["Qwen2ForCausalLM"]},
+            )
+            ledger_path = root / "ledger.jsonl"
+            ledger_path.write_text(
+                json.dumps(
+                    {
+                        "taskId": "task-old",
+                        "modelId": "owner/old",
+                        "targetGpu": "gpu-b",
+                        "framework": "mindie",
+                        "taskType": "text-generation",
+                    }
+                )
+                + "\n",
+                encoding="utf-8",
+            )
+
+            contexts = _load_task_compatibility_contexts(
+                tracker,
+                ledger_path=ledger_path,
+            )
+
+        self.assertEqual(["Qwen2ForCausalLM"], contexts["task-new"]["modelProfile"]["architectures"])
+        self.assertEqual("mindie", contexts["task-old"]["framework"])
+        self.assertEqual({}, contexts["task-old"]["modelProfile"])
+
     def test_age_cleanup_uses_minus_ten_once_then_minus_five(self) -> None:
         args = argparse.Namespace(
             recent_model_reserve_slots=10,