Release v0.0.3 with polished Whisper tab

[brvale97]

What changed

• make the collapsed Whisper tab smaller and start dictation with an inward swipe
• keep the tab anchored correctly across rotation and navigation-bar layouts
• preserve edge and vertical position as logical preferences
• protect internal overlay broadcasts with a non-exported receiver
• validate microphone permission inside the recorder
• bump the app to version 0.0.3 (versionCode 2)
• ignore all JKS keystores and enforce stable line endings

Why

The floating Whisper tab could retain stale pixel coordinates after configuration changes, occupy a larger touch area while collapsed, or disappear too easily through outward gestures. The release also needed an incremented Android version code so existing v0.0.2 installations can upgrade.

User impact

The edge tab is less intrusive, survives rotation more reliably, and supports swipe-inward dictation. Existing users can install the signed v0.0.3 APK as an update.

Validation

• testReleaseUnitTest
• lintRelease
• assembleRelease with R8 and signing validation
• APK signature verified against v0.0.2 certificate
• manifest verified as versionName 0.0.3 / versionCode 2