feat: add deep_extract to ExtractSettings interface

[devin-ai-integration]

Summary

Adds the deep_extract optional boolean field to the ExtractSettings interface in the Node SDK, bringing it to parity with the Python SDK. The API backend already supports this field on the V3 ExtractSettings model.

Deep Extract is an agentic extraction mode that iteratively refines output for near-perfect accuracy on complex documents.

Review & Testing Checklist for Human

• Verify the API backend's V3 ExtractSettings (in reductoai/api src/config/v3.py) includes deep_extract and wires it through v3_extract_config_to_v1 — this PR only adds the SDK type, so the backend must accept the field
• Confirm the OpenAPI spec is updated (or will be updated) to include deep_extract so this manual edit isn't overwritten by the next Stainless SDK regeneration
• Test a Node SDK extract call with settings: { deep_extract: true } against the production API to verify end-to-end functionality

Notes

• This SDK is Stainless-generated. This manual patch will be overwritten on the next regeneration unless the upstream OpenAPI spec also includes deep_extract in ExtractSettings. Consider syncing the spec to make this permanent.
• Build and lint (yarn build && yarn lint) pass cleanly with this change.

Link to Devin session: https://app.devin.ai/sessions/50ee7ec50cd24ff9be4e70d8bd553718

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[devin-ai-integration]

Original prompt from sandeep

SYSTEM:
=== BEGIN THREAD HISTORY (in #support) ===
Unknown User (B06URLPQ8D7):

Julien Melissas | Drata #8522
<https://app.usepylon.com/issues?issueNumber=8522|View in Pylon> | <https://reductoai.slack.com/archives/C08Q3HC791V/p1774541634434959?thread_ts=1774541634.434959&amp;amp;cid=C08Q3HC791V|View in Slack> | 🔒 Internal thread
@­Alvin Ryanputra - it looks like in the Python SDK ​deep_extract: True​ can be passed in the settings for the extract API, but it doesn't seem to be in the node SDK at this point, is that correct?

Unknown User (B06URLPQ8D7): Pylon Issue: 598fba45-27ea-4f87-81a1-d463ba62c79c
Customer Status: Closed - Won
Estimated Monthly Contract Value: $3,333.33
💡 Tip: Use !support in a tagged message to Devin when asking it to investigate to trigger our default support playbook.

Unknown User (B06URLPQ8D7): When checked in code deep extract is supported in python sdk - <https://github.com/reductoai/reducto-python-sdk/blob/0322db7dd1f64921ba6c604dfa84d4b11b4cd99d/src/reducto/types/extract_settings_param.py`#`L27|https://github.com/reductoai/reducto-python-sdk/blob/0322db7dd1f64921ba6c604dfa84d4b11b4cd99d/src/reducto/types/extract_settings_param.py`#`L27>

Whereas it isn't supported currently in node sdk - <https://github.com/reductoai/reducto-node-sdk/blob/ac664a51fc654bee8565ceb4546862936ecc3d24/src/resources/extract-async.ts`#`L59|https://github.com/reductoai/reducto-node-sdk/blob/ac664a51fc654bee8565ceb4546862936ecc3d24/src/resources/extract-async.ts`#`L59>

Sai Sandeep (U0A3DGFJ087): @Devin !support
Pylon Ticket ID: 598fba45-27ea-4f87-81a1-d463ba62c79c
Please investigate this ticket and create a PR accordingly to support this.
=== END THREAD HISTORY ===

Thread URL: https://reductoai.slack.com/archives/C06URUC67MX/p1774541652576439?thread_ts=1774541652.576439&amp;cid=C06URUC67MX

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.