docs: update documentation for OpenHands v1.25.0 - #904

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Runtime-only docsConfig changes, partial deployment update
file too large - skipping: openhands/static/img/teaser.mp4
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  - openapi/agent-sdk.json
  - openapi/openhands-cloud.json
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Updating targeted paths:
  openhands/usage/agent-canvas/managing-automations.mdx
  openhands/usage/agent-canvas/model-configuration.mdx
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Queued update of llms-full.txt
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