[Woo POS] Track POS-specific analytics events in reader connection flow

[samiuelson]

Closes: #13301

Description

This PR modifies analytics tracking code to use a POS-specific prefix (woocommerce_android_pos) in the reader connection flow.

Steps to reproduce

The goal is to verify that during reader connection flow the events we track in IPP start with woocommerce_android_, and the ones in POS with woocommerce_android_pos_ prefix.

Testing information

• Verify that reader connection events in IPP are tracked without any change
• Verify that reader connection events in POS are tracked with a desired prefix

The tests that have been performed

I tested the card reader connection flows in POS and IPP modes and verified analytics events are tracked with proper prefixes, woocommerce_android_pos_ and woocommerce_android_ respectively.

Images/gif

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• I have considered if this change warrants release notes and have added them to RELEASE-NOTES.txt if necessary. Use the "[Internal]" label for non-user-facing changes.

Reviewer (or Author, in the case of optional code reviews):

Please make sure these conditions are met before approving the PR, or request changes if the PR needs improvement:

• The PR is small and has a clear, single focus, or a valid explanation is provided in the description. If needed, please request to split it into smaller PRs.
• Ensure Adequate Unit Test Coverage: The changes are reasonably covered by unit tests or an explanation is provided in the PR description.
• Manual Testing: The author listed all the tests they ran, including smoke tests when needed (e.g., for refactorings). The reviewer confirmed that the PR works as expected on big (tablet) and small (phone) in case of UI changes, and no regressions are added.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce-Wear Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce-Wear Android
	Platform	⌚️ Wear OS
	Flavor	Jalapeno
	Build Type	Debug
	Commit	230b8d6
	Direct Download	woocommerce-wear-prototype-build-pr13342-230b8d6.apk

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce Android
	Platform	📱 Mobile
	Flavor	Jalapeno
	Build Type	Debug
	Commit	230b8d6
	Direct Download	woocommerce-prototype-build-pr13342-230b8d6.apk