fix(realtime): restore function calls in updateHistory

[sylvesterkaczmarek]

Summary

Fixes #645 by restoring function_call items when Realtime conversation history is populated through updateHistory.

New function-call history items are replayed with a stable synthetic call_id derived from the SDK history item ID. Completed calls replay their matching function_call_output, and Realtime API acknowledgements are correlated back into the local history projection.

Replay ownership is connection-scoped and fails closed around asynchronous server state:

• unsupported in-place function-call edits and cross-type replacements are rejected before any server mutation;
• mid-history function-call insertion, replay after a preceding item update, and repeated acknowledgement-pending replay are rejected before mutation;
• completed call removal deletes the acknowledged output first and waits for conversation.item.deleted before deleting the call;
• replay deletion state is advanced before normalized deletion acknowledgements are exposed to consumers;
• asynchronous provider rejection of replay-owned public function outputs is correlated through client event IDs;
• duplicate public outputs are rejected while an output is pending or after one has been acknowledged, preserving the acknowledged output item for later deletion;
• mixed additions and non-function-call updates are recreated in target-history order;
• repeated deletion while acknowledgement is pending is rejected;
• replay ownership is cleared on synchronous send failure, transport close, and reconnect.

Existing non-function-call history behavior is preserved.

Test plan

Focused regression coverage verifies:

• replay with and without function output;
• echoed call/output projection into local history;
• late/stale echo handling across reconnects;
• reconnect and close ownership cleanup;
• synchronous send-failure cleanup;
• rejection of in-place edits, cross-type replacements, mid-history insertion, replay after preceding item updates, repeated replay, and repeated removal without emitting partial server mutations;
• output deletion acknowledgement before function-call deletion;
• synchronous callbacks observe advanced deletion state;
• asynchronous rejection of a public replay output releases pending output state;
• an acknowledged replay output cannot be overwritten by a duplicate output attempt and remains deletable by its output item ID;
• mixed replay additions and recreated message updates are emitted in newHistory order.

The branch is based directly on current main and collapsed to one signed-off commit.

Issue number

Fixes #645.

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🦋 Changeset detected

Latest commit: 91a58cf

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

Name	Type
@openai/agents-realtime	Patch
@openai/agents	Patch
realtime-react-native	Patch
@openai/agents-core	Patch
@openai/agents-openai	Patch
@openai/agents-extensions	Patch

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[sylvesterkaczmarek]

Addressed the latest review on the current head (2ac0578). Function-call history mutations now fail closed before server events, replay ownership is cleared on send failure/close/reconnect, and completed call/output deletion is serialized through the output deletion acknowledgement before deleting the call. Added controlled interleaving regressions for mid-history insertion, in-place/cross-type replacement, repeated replay/removal, staged deletion, and ownership cleanup. Focused validation passed: 62 Realtime tests, Prettier, agents-core build, and agents-realtime build-check. The branch is now one signed-off commit on current main; upstream CI is awaiting repository authorization.

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[sylvesterkaczmarek]

@seratch The requested asynchronous replay-ownership cases are now addressed on the current one-commit head (36f6331), including the two follow-up findings from the latest Codex review. All inline review threads are resolved and focused regression coverage is included. When convenient, could you please re-review the updated head?

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