feat(conversations): pre-SDK rows read from canonical messages, implied titles, markdown adopts them by first prompt

tests/test_api.py

@@ -18,6 +18,7 @@ from claude_agent_sdk import (
 from httpx import ASGITransport, AsyncClient
 from test_conversations import ScriptedClient, World
 
+from beaver_gateway.core.conversation_store import rewrite_messages
 from beaver_gateway.core.auth import TokenStore
 from beaver_gateway.core.registry import McpRegistry
 from beaver_gateway.core.transcript import build_entries
@@ -397,3 +398,25 @@ async def test_admin_login_hands_out_the_ui_bearer(world: World) -> None:
     assert me.status_code == 200
     assert (await http.post("/admin/auth/logout")).status_code == 204
     assert (await http.get("/admin/auth/session")).status_code == 401
+
+
+async def test_pre_sdk_rows_show_canonical_history_and_a_title(world: World) -> None:
+    api = Api(world)
+    conv = await world.conversations.create(kind="deep", agent="d", origin="markdown")
+    async with world.db.session() as session:
+        await rewrite_messages(
+            session,
+            conversation_id=cast("int", conv.id),
+            messages=[
+                {"role": "user", "content": "так смотри, план на май\nвторая строка"},
+                {"role": "assistant", "content": [{"type": "text", "text": "ок"}]},
+            ],
+        )
+    rows = (await api.get("/conversations"))["conversations"]
+    assert [r["title"] for r in rows if r["id"] == conv.external_id] == [
+        "так смотри, план на май"
+    ]
+    shown = await api.get(f"/conversations/{conv.external_id}")
+    assert shown["title"] == "так смотри, план на май" and shown["session_id"] is None
+    history = await api.get(f"/conversations/{conv.external_id}/history")
+    assert [m["role"] for m in history["messages"]] == ["user", "assistant"]