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refactor(persistence): unify SQLite to single deerflow.db and move checkpointer to runtime

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Merge checkpoints.db and app.db into a single deerflow.db file (WAL mode
handles concurrent access safely). Move checkpointer module from
agents/checkpointer to runtime/checkpointer to better reflect its role
as a runtime infrastructure concern.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
rayhpeng
2026-04-10 10:08:23 +08:00
parent 9197000690
commit 03952eca53
17 changed files with 54 additions and 43 deletions
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backend/app/gateway/deps.py
+1 -1
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@@ -31,7 +31,7 @@ async def langgraph_runtime(app: FastAPI) -> AsyncGenerator[None, None]:
async with langgraph_runtime(app):
yield
"""
from deerflow.agents.checkpointer.async_provider import make_checkpointer
from deerflow.runtime.checkpointer.async_provider import make_checkpointer
from deerflow.config import get_app_config
from deerflow.persistence.engine import close_engine, get_session_factory, init_engine_from_config
from deerflow.runtime import make_store, make_stream_bridge