Feat: support tree structured deep-research policy. (#12559)

### What problem does this PR solve?

#12558
### Type of change

- [x] New Feature (non-breaking change which adds functionality)
This commit is contained in:
Kevin Hu
2026-01-13 09:41:35 +08:00
committed by GitHub
parent 867ec94258
commit 44bada64c9
15 changed files with 1166 additions and 1381 deletions

1783
uv.lock generated

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