The scale ring's ⊖ out / in ⊕ buttons are replaced by a circular **Altitude**
knob (the endless rotary encoder, drawn as a dial). cosmos (highest) sits at the
top; turning clockwise descends cosmos → orbit → coast → reef → abyss and past
the deepest **wraps back to the top** — the same endless ring the server already
models (advance + wrap unchanged).
- Built dynamically from `ring.scales` (labels + ticks per scale, a needle that
points at the current scale, an ALTITUDE caption).
- Drag to turn: the rotation accumulates and commits whole detents on release, so
a big spin becomes one fast blended pass (reuses the proven wheel/detent path);
scroll the knob to step; tap a label to jump the shortest way around.
- Pure frontend — no engine/API change. JS syntax-checked; live server probed
(assets serve, dial present, abyss→cosmos wrap intact). 23 sim-API tests green.
By-eye review deferred to the operator (no Chrome on this box).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
BenStullsBets