fix: max_coroutines=2, saga support in sidecar; stage3 chunking; TIMEOUT_MAX 0 persistent in falkordb compose

scripts/graphiti_service.py

@@ -65,6 +65,7 @@ async def lifespan(app: FastAPI):
         embedder=SentenceTransformerEmbedder(),
         cross_encoder=BGERerankerClient(),
         graph_driver=FalkorDriver(host=FALKORDB_HOST, port=FALKORDB_PORT, database="aaron"),
+        max_coroutines=2,
     )
     await graphiti_instance.build_indices_and_constraints()
     log.info(f"Graphiti ready — provider: {LLM_PROVIDER}, group: {GROUP_ID}")
@@ -83,6 +84,7 @@ class BulkEpisodeItem(BaseModel):
 class BulkEpisodeRequest(BaseModel):
     episodes: list[BulkEpisodeItem]
     group_id: str | None = None
+    saga: str | None = None
 
 
 class EpisodeRequest(BaseModel):
@@ -136,6 +138,7 @@ async def add_episodes_bulk(req: BulkEpisodeRequest):
         result = await g.add_episode_bulk(
             bulk_episodes=raw_episodes,
             group_id=req.group_id or GROUP_ID,
+            saga=req.saga or None,
         )
         return {"ok": True, "count": len(raw_episodes)}
     except Exception as e: