Whats Next? 0.16.5 - Native Blizzard UI scaling

- Removed the addon's custom typography/layout scaling engine.
- Removed addon-specific interface and detached-window font-size controls.
- All interface frames now inherit Blizzard UI scale from UIParent.
- FontStrings keep Blizzard GameFont objects instead of being rewritten with SetFont().
- Removed font-driven anchor and height reflow that caused overlaps after text scaling.
- Detached task/timer windows now use Blizzard font objects and native parent scaling.
- Kept Metric()/typography entry points as non-mutating compatibility shims for existing modules.
