fix(deps): update dependency langgraph to v1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
langgraph	^0.6.6 -> ^1.0.0

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Release Notes

langchain-ai/langgraph (langgraph)

v1.0.1

Compare Source

Changes since 1.0.0

• release: Checkpointers 3.0 (#​6313)
• chore: Restrict "json" type deserialization (#​6269)

v1.0.0

Compare Source

Changes since 1.0.0rc1

• release: langgraph + langgraph-prebuilt v1.0.0 (#​6300)
• feat: adding cursory Python 3.14 support (#​6298)
• style: fixes for ref docs (#​6297)

v0.6.11

Compare Source

Changes since 0.6.10

• chore: Allow checkpoint 3.0 in 0.6.* (#​6315)

v0.6.10

Compare Source

Changes since 0.6.9

• chore(langgraph): bump langgraph version (#​6257)
• fix(langgraph): revert selective interrupt task scheduling (#​6252)

v0.6.9

Compare Source

Changes since 1.0.0a4

• chore(langgraph): bump version (#​6245)
• chore(checkpoint): bump patch version (#​6244)
• fix(langgraph): selective interrupt task scheduling (#​6158)
• fix(langgraph): task result from stream mode debug / tasks should match format from get_state_history / get_state (#​6233)
• fix(langgraph): don't use rst code blocks in docstrings (#​6231)
• docs(langgraph): standardize version-added admonitions (#​6230)
• fix(langgraph): fix supersteps not populating task.result field (#​6195)
• fix(langgraph): revert -- reuse cached writes on nested resume to prevent task re-execution (#​6227)
• chore(checkpoint-postgres): bump version (#​6222)

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
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The artifact failure details are included below:

File name: poetry.lock

Updating dependencies
Resolving dependencies...


Because open-learning-ai-tutor (0.2.12) depends on langgraph (>=0.6.6,<0.7.0)
 and no versions of open-learning-ai-tutor match >0.2.12,<0.3.0, open-learning-ai-tutor (>=0.2.12,<0.3.0) requires langgraph (>=0.6.6,<0.7.0).
So, because learn-ai depends on both langgraph (^1.0.0) and open-learning-ai-tutor (^0.2.12), version solving failed.

[abeglova]

This can not be updated yet because the latest version on langmem (0.0.29) depends on langgraph (>=0.6.0,<0.7.0).