chore: anchor fresh-start history to upstream

agent/session_persistence.py

@@ -40,7 +40,6 @@ _EPHEMERAL_SCAFFOLDING_FLAGS = (
 _IMAGE_PART_TYPES = {"image", "image_url", "input_image"}
 # Reasoning/codex fields are role-gated (assistant-only) inside _insert_message_rows.
 _ROW_REASONING_KEYS = ("reasoning", "reasoning_content", "reasoning_details", "codex_reasoning_items", "codex_message_items")
-_PERSIST_AFTER_ADMISSION_INTERRUPT = "_persist_after_admission_interrupt"
 
 
 def _is_ephemeral_scaffolding(msg: Any) -> bool:
@@ -177,6 +176,7 @@ def _db_flush_row(agent, msg: Dict, is_current_turn_user: bool) -> Dict[str, Any
         **{k: msg.get(k) for k in _ROW_REASONING_KEYS},
         "_compressed_summary": bool(msg.get(COMPRESSED_SUMMARY_METADATA_KEY)),
         "timestamp": timestamp, "api_content": api_content,
+        "api_content_sources": msg.get("api_content_sources"),
         "display_kind": _summary_display_kind(msg), "display_metadata": msg.get("display_metadata"),
         "platform_message_id": msg.get("platform_message_id"),  # load-bearing for restart drain-window recovery dedup
     }
@@ -202,9 +202,7 @@ def _db_flush_collect(agent, messages: List[Dict], conversation_history: Optiona
         if not isinstance(msg, dict) or _is_ephemeral_scaffolding(msg) or msg.get(_DB_PERSISTED_MARKER):
             continue
         # Already durable (history copy or caller-seeded): stamp so future flushes skip it.
-        if (
-            id(msg) in history_ids or id(msg) in seed_ids
-        ) and not msg.get(_PERSIST_AFTER_ADMISSION_INTERRUPT):
+        if id(msg) in history_ids or id(msg) in seed_ids:
             msg[_DB_PERSISTED_MARKER] = True
             continue
         batch_rows.append(_db_flush_row(agent, msg, ov_idx == msg_idx or msg is pending_cli_message))