feat(KNO-10408): Update docs around Channel Data Tokens + Devices

[andy-knock]

Description

• As titled

Touches these paths:

• https://docs.knock.app/managing-recipients/setting-channel-data#provider-data-requirements
• https://docs.knock.app/api-reference/recipients/preferences/schemas/preference_set_channel_type_setting

Todos

• n/a

Tasks

• n/a

Screenshots

• n/a

---

Note

Adds docs for device metadata on push channels, introduces devices/PushDevice schema and example, and updates provider pages, API refs, and sidebar.

• Push docs
  • New page: content/integrations/push/device-metadata.mdx explaining device-level locale/timezone and usage.
  • Provider pages updated: apns.mdx, firebase.mdx, expo.mdx, aws-sns.mdx
    • Add support for devices alongside tokens/target_arns with links to PushDevice schema.
  • Overview: adds links for token deregistration and new device metadata feature.
  • Token deregistration: clarifies removal of invalid tokens and devices.
• Channel data guide: setting-channel-data.mdx
  • Introduces PushDevice object and provider-specific requirements (APNs/FCM/Expo/SNS/OneSignal).
• Code examples
  • New snippet: data/code/users/set-channel-data-devices.ts and wired into MultiLangCodeBlock.tsx as users.setChannelDataDevices.
• Navigation
  • Sidebar: adds Device metadata under Integrations > Push.
• API reference wording
  • data/specs/api/customizations.yml: updates channel data description to include device metadata.

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KNO-10408 [Docs] Update docs

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Project	Deployment	Preview	Comments	Updated (UTC)
docs	Ready	Preview	Comment	Nov 5, 2025 7:17pm

[rachael-t]

Two small nits but other than that, looks great!