Fix plugin crash and preserve infoPlist values when props are omitted

[Copilot]

Using the plugin without an options array ("@kingstinct/react-native-healthkit") causes a crash because props is undefined, and accessing props.NSHealthShareUsageDescription throws. Additionally, values set via expo.ios.infoPlist were always silently overwritten by the plugin's hardcoded defaults.

Changes

• app.plugin.ts / app.plugin.js: In withInfoPlistPlugin, use optional chaining on props and add a fallback to the existing modResults value before the hardcoded default

The fallback chain is now:

1. Plugin prop value (explicit string passed to the plugin)
2. Existing infoPlist value (set via expo.ios.infoPlist in app.json)
3. Hardcoded default ("<AppName> wants to read/update your health data")

This means both of the following configurations now work correctly without conflict:

{
  "expo": {
    "plugins": ["@kingstinct/react-native-healthkit"],
    "ios": {
      "infoPlist": {
        "NSHealthShareUsageDescription": "Share activity data with $(PRODUCT_NAME)",
        "NSHealthUpdateUsageDescription": "Share activity data from $(PRODUCT_NAME)"
      }
    }
  }
}

[changeset-bot]

🦋 Changeset detected

Latest commit: e28d5f7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@kingstinct/react-native-healthkit	Patch

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[pkg-pr-new]

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npm i https://pkg.pr.new/kingstinct/react-native-healthkit/@kingstinct/react-native-healthkit@353

commit: e28d5f7

[Copilot]

Pull request overview

This PR updates the Expo config plugin for @kingstinct/react-native-healthkit to (1) avoid crashing when the plugin is configured without an options object and (2) stop overwriting expo.ios.infoPlist usage-description values unless explicitly overridden by plugin props.

Changes:

• Guard plugin option access with optional chaining so props can be omitted safely.
• Prefer plugin-provided usage description strings, otherwise keep any existing infoPlist strings, otherwise fall back to defaults.
• Add a patch changeset for publishing the fix.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 6 comments.

File	Description
packages/react-native-healthkit/app.plugin.ts	Updates TS config plugin logic to handle omitted props and preserve existing Info.plist usage descriptions.
packages/react-native-healthkit/app.plugin.js	Updates the published JS config plugin with the same omitted-props and fallback behavior.
.changeset/kind-ties-know.md	Adds a patch changeset entry for releasing the fix.