* Honest pixel-space sizing for `pointRadiusPx` / `strokeWidthPx`: the
renderer divides by the current camera scale on every
`viewport.zoomed` so thin lines / small markers stay the same on-screen
size at any zoom.
* Known-size planets switch to `pointRadiusWorld`, softened against the
reference scale by `PLANET_SIZE_ZOOM_ALPHA = 0.33`; unidentified
planets pin to a 3-px disc.
* New planet label layer renders a two-line `name / #N` legend under
each planet (`#N` only for unidentified or when the new `planetNames`
toggle is off). Selection now paints an inverse-fill frame around the
selected planet's label plus an outline on the disc; the old
selection-ring primitive is retired.
* Bombing markers swap the separate CirclePrim for a planet-outline
overlay (damaged / wiped colour); the report deep-link moves to a
"view bombing report" link in the planet inspector.
* Docs + tests follow: `renderer.md` reflects the new sizing contract +
label / outline layers, vitest covers the sizing math, label
formatting, and the new toggle, and the map-toggles e2e adds a
persistence case for `planetNames`.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Ilia Denisov