feat(android): add unmaskXMLViewIds to PrivacyProfile

[beekld]

Summary

Adds Android unmaskXMLViewIds option that is equivalent to iOS's unmaskAccessibilityIdentifiers

How did you test this change?

Unit tests added.

Are there any deployment considerations?

No.

---

Note

Medium Risk
Changes session-replay masking behavior by introducing a new explicit-unmask path and updating MaskCollector.collectMasks call signatures, which could alter what gets redacted if misconfigured.

Overview
Adds unmaskXMLViewIds to PrivacyProfile so specific XML Views can be explicitly unmasked by resource entry name, overriding global masking rules while still losing to explicit masks.

Updates the masking pipeline to pass and evaluate a new explicitUnmaskMatchers list in MaskCollector (including precedence/propagation semantics), wires it through ImageCaptureService, and documents the new option in the README.

Extends unit tests to cover id normalization, matcher inclusion, and explicit-unmask precedence/propagation behaviors.

^{Reviewed by Cursor Bugbot for commit 3af5a9f. Bugbot is set up for automated code reviews on this repo. Configure here.}