Disable updater for newer app versions

[cyanzhong]

No description provided.

[Copilot]

Pull request overview

This PR disables the extension’s built-in update checks when running in newer MarkEdit host versions that ship an extension manager, to avoid redundant self-update behavior.

Changes:

• Added hasExtensionManager() host capability check based on MarkEdit.runtimeInfo().appVersion.
• Forced updateBehavior to 'never' when the host extension manager is present.

Reviewed changes

Copilot reviewed 2 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/support/settings.ts	Forces update behavior to “never” on hosts detected to have an extension manager.
src/support/host.ts	Introduces version-based host detection for presence of the built-in extension manager.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 5 changed files in this pull request and generated no new comments.

Comments suppressed due to low confidence (1)

src/support/host.ts:21

• The version check assumes MarkEdit.runtimeInfo() returns an object with a string appVersion. If runtimeInfo() returns undefined/null or appVersion isn’t a string, calling localeCompare will throw and can break initialization. Add a type guard (and trim) before comparing.

  // appVersion is always 3 numeric segments, so numeric collation is a safe comparison
  const appVersion = MarkEdit.runtimeInfo().appVersion;
  return appVersion.localeCompare('1.34.0', undefined, { numeric: true }) >= 0;