fix(clerk-expo): Ensure correct mobile detection for native requests

[wobsoriano]

Description

This PR addresses an issue where the isMobile value of a SessionActivity is incorrectly set to false for iOS devices. The problem is caused by some iOS devices sending an empty user-agent header:

Here's an example of an expo login request in iOS (notice there's no user-agent header and isMobile is false):

The backend relies on either the x-mobile or user-agent headers to determine if a request is from a mobile device. This update adds the x-mobile header for all native requests, ensuring that the backend correctly records session activities as mobile, regardless of the user-agent value.

Here's a SessionActivity record after signing in with a x-mobile header (notice isMobile is true):

Resolves ECO-189

Checklist

• npm test runs as expected.
• npm run build runs as expected.
• (If applicable) JSDoc comments have been added or updated for any package exports
• (If applicable) Documentation has been updated

Type of change

• 🐛 Bug fix
• 🌟 New feature
• 🔨 Breaking change
• 📖 Refactoring / dependency upgrade / documentation
• other:

[changeset-bot]

🦋 Changeset detected

Latest commit: 2fc2705

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

This PR includes changesets to release 1 package

Name	Type
@clerk/clerk-expo	Patch

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[anagstef]

LGTM

[wobsoriano]

!snapshot

[clerk-cookie]

Hey @wobsoriano - the snapshot version command generated the following package versions:

Package	Version
@clerk/astro	1.3.1-snapshot.v2fc2705
@clerk/backend	1.10.1-snapshot.v2fc2705
@clerk/chrome-extension	1.3.3-snapshot.v2fc2705
@clerk/clerk-js	5.21.1-snapshot.v2fc2705
@clerk/elements	0.15.1-snapshot.v2fc2705
@clerk/clerk-expo	2.2.9-snapshot.v2fc2705
@clerk/express	0.0.38-snapshot.v2fc2705
@clerk/fastify	1.0.40-snapshot.v2fc2705
@clerk/localizations	3.0.1-snapshot.v2fc2705
@clerk/nextjs	5.5.1-snapshot.v2fc2705
@clerk/clerk-react	5.8.1-snapshot.v2fc2705
@clerk/remix	4.2.24-snapshot.v2fc2705
@clerk/clerk-sdk-node	5.0.37-snapshot.v2fc2705
@clerk/shared	2.7.1-snapshot.v2fc2705
@clerk/tanstack-start	0.3.7-snapshot.v2fc2705
@clerk/testing	1.2.20-snapshot.v2fc2705
@clerk/themes	2.1.29-snapshot.v2fc2705
@clerk/types	4.20.1-snapshot.v2fc2705

Tip: Use the snippet copy button below to quickly install the required packages.
@clerk/astro

npm i @clerk/astro@1.3.1-snapshot.v2fc2705 --save-exact

@clerk/backend

npm i @clerk/backend@1.10.1-snapshot.v2fc2705 --save-exact

@clerk/chrome-extension

npm i @clerk/chrome-extension@1.3.3-snapshot.v2fc2705 --save-exact

@clerk/clerk-js

npm i @clerk/clerk-js@5.21.1-snapshot.v2fc2705 --save-exact

@clerk/elements

npm i @clerk/elements@0.15.1-snapshot.v2fc2705 --save-exact

@clerk/clerk-expo

npm i @clerk/clerk-expo@2.2.9-snapshot.v2fc2705 --save-exact

@clerk/express

npm i @clerk/express@0.0.38-snapshot.v2fc2705 --save-exact

@clerk/fastify

npm i @clerk/fastify@1.0.40-snapshot.v2fc2705 --save-exact

@clerk/localizations

npm i @clerk/localizations@3.0.1-snapshot.v2fc2705 --save-exact

@clerk/nextjs

npm i @clerk/nextjs@5.5.1-snapshot.v2fc2705 --save-exact

@clerk/clerk-react

npm i @clerk/clerk-react@5.8.1-snapshot.v2fc2705 --save-exact

@clerk/remix

npm i @clerk/remix@4.2.24-snapshot.v2fc2705 --save-exact

@clerk/clerk-sdk-node

npm i @clerk/clerk-sdk-node@5.0.37-snapshot.v2fc2705 --save-exact

@clerk/shared

npm i @clerk/shared@2.7.1-snapshot.v2fc2705 --save-exact

@clerk/tanstack-start

npm i @clerk/tanstack-start@0.3.7-snapshot.v2fc2705 --save-exact

@clerk/testing

npm i @clerk/testing@1.2.20-snapshot.v2fc2705 --save-exact

@clerk/themes

npm i @clerk/themes@2.1.29-snapshot.v2fc2705 --save-exact

@clerk/types

npm i @clerk/types@4.20.1-snapshot.v2fc2705 --save-exact