Normalize Glas execution evidence

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a028de-e2c8-7732-8521-46a7fc5db82f

src/activity_core/glas_profile.py

@@ -123,9 +123,13 @@ def normalise_execution_refs(raw: Any) -> dict[str, Any]:
         value = raw.get(key)
         if key in _LIST_REF_KEYS:
             if isinstance(value, (list, tuple)):
-                items = [str(item).strip() for item in value if str(item).strip()]
+                items = [
+                    item.strip()[:500]
+                    for item in value[:20]
+                    if isinstance(item, str) and item.strip()
+                ]
                 if items:
                     refs[key] = items
         elif isinstance(value, str) and value.strip():
-            refs[key] = value.strip()
+            refs[key] = value.strip()[:500]
     return refs