feat: add Mi Band connector

[fabOnReact]

Summary

• add Mi Band connector translating library events to watchEvents
• document Mi Band pairing requirements and permissions

Testing

• yarn lint (fails: ESLint couldn't find the plugin "eslint-plugin-ft-flow")
• yarn typecheck
• yarn test (fails: Cannot find module '@react-native/babel-preset')

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https://chatgpt.com/codex/tasks/task_e_68b70274f8848320a3cca865b567ffb2

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

[P1] Export Mi Band connector through public API

The new MiBandConnector declares and exports mibandEvents, but nothing in the package imports or re‑exports it. watchEvents in subscriptions.ts still uses the existing native module, so consumers loading react-native-wear-connectivity cannot subscribe to Mi Band events despite the new README/docs. As written this code is dead and the added dependency brings no usable feature. Consider wiring the connector into watchEvents or re-exporting it from the library entry point so callers can actually receive Mi Band data.

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