Translucent fill over a backdrop blur, both platforms and both bar styles.
Frosted bars draw over an extended body, so the shell's extendBody and the
tab clearance now key off NooBottomBar.drawsBehindBody.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
watch outside build asserts in debug builds, so taps on rows silently did
nothing in debug (release strips the assert, which hid it on Android).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
