Update dependency @langchain/openai to v1.5.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@langchain/openai (source)	1.5.1 → 1.5.2

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Release Notes

langchain-ai/langchainjs (@​langchain/openai)

v1.5.2

Compare Source

Patch Changes

• #​11045 05936ab Thanks @​jackjin1997! - fix(openai): omit empty id and content on reasoning items in Responses API input

  Reasoning blocks reassembled from streaming chunks (e.g. via streamEvents) never carry an id, since OpenAI's streaming protocol only includes it in non-streaming responses. When such a message was replayed as Responses API input on the next turn, the reasoning item was emitted with id: "", which OpenAI rejects with 400 Invalid 'input[n].id': ''. The id field is now omitted when absent.

  A second error surfaced immediately after that fix: the same converter set a populated content array on the reasoning input item, which the Responses API also rejects (400 Invalid 'input[n].content': array too long. Expected an array with maximum length 0). Reasoning input items only carry summary, so content is no longer forwarded. Thanks to @​csrujanreddy for catching the second issue and verifying both fixes against the live API.

• #​11065 798cb70 Thanks @​rxits! - fix(openai): route standard url file blocks to native input_file in Responses API

• #​11090 80c790b Thanks @​nikhilpakhloo! - fix(openai): stream built-in tool progress events

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