Negative z-index (-z-10) placed orbs behind the body's opaque background,
making them invisible. Moved all ambient layers (orbs, noise texture,
vignette) into the DashboardAmbient component as absolute-positioned
children at z-0, with content at z-10. Boosted orb opacities to 12%/7%
for perceptible effect. Removed CSS pseudo-element approach in favor of
inline React elements for better stacking control.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>