LangGraph 1.2.18

Changes since 1.2.17

• release(checkpoint): 4.3.1 (#9447)
• release(langgraph): 1.2.18 (#9445)
• fix(langgraph): let error_handler recover on every path and stream failed task results (#9408)
• feat(langgraph): default delta snapshots to 100 updates (#9420). DeltaChannel now takes a full snapshot every 100 updates instead of 1000: faster reads on long threads, more storage. Pass snapshot_frequency=1000 to keep the old behavior.
• fix(langgraph): stream the last checkpoint of a run stopped by interrupt_after or the recursion limit (#9409)
• fix(langgraph): stop duplicating tags at every subgraph level (#9400)
• chore(deps): bump opentelemetry-api from 1.39.1 to 1.45.1 in /libs/langgraph (#9424)
• chore(deps): bump nbconvert from 7.17.1 to 7.17.2 in /libs/langgraph (#9426)