fix(messaging): support AndroidX MessagingStyle avatars and prevent photo tinting (#395)

[D4vidDf]

Context & Problem

Fixes #395. Users reported that WhatsApp (and other chat apps) profile pictures were either missing or appearing as a blank/white circle in the Dynamic Island rather than displaying the sender's avatar.
Investigation revealed two root causes:

1. Strict template matching: In BaseTranslator.getNotificationBitmap, the check was strictly comparing against "android.app.Notification$MessagingStyle". WhatsApp and modern chat apps build notifications using NotificationCompat, which populates the template with "androidx.core.app.NotificationCompat$MessagingStyle". This caused MessagingStyle avatar extraction to be completely skipped for AndroidX notifications.
2. Aggressive monochrome white tinting: resolveIcon called isBitmapDarkAndMonochrome() and tinted matches to solid white (PorterDuff.Mode.SRC_IN). When a sender had a profile photo with low saturation, dark background, night shot, or dark features, it was identified as dark & monochrome and tinted into a solid white circle.

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Key Changes

• AndroidX & Compat MessagingStyle extraction:
  • Leveraged NotificationTemplates.isMessagingStyle(template) (and fallback checks on EXTRA_MESSAGES) to support both platform and AndroidX MessagingStyle.
  • Added extraction via NotificationCompat.MessagingStyle.extractMessagingStyleFromNotification(sbn.notification) with fallback to raw bundle parcels (Person and androidx.core.app.Person) and EXTRA_MESSAGING_PERSON.
  • Added loadIconCompatBitmap to safely resolve IconCompat instances.
• Visual Source Classification (resolveNotificationVisual):
  • Implemented resolveNotificationVisual(sbn: StatusBarNotification): ResolvedNotificationVisual to categorize visuals by origin (PERSON, PICTURE, LARGE_ICON, SMALL_ICON, APP_ICON, FALLBACK).
• Selective Tinting Policy:
  • Updated resolveIcon to only apply monochrome/dark tinting to system icons and app fallback icons (SMALL_ICON, APP_ICON, FALLBACK). Photographic sources (PERSON, PICTURE, LARGE_ICON) are never tinted white.
• Unit Tests:
  • Added BaseTranslatorVisualTest covering template recognition, visual source badge rules, and tinting protection policies.

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Verification

• ./gradlew testDebugUnitTest executed and passed cleanly.
• Verified backwards compatibility with legacy getNotificationBitmap(sbn) callers (DynamicTranslator, LiveUpdateTranslator).

[github-actions]

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