Star map: spread genres ~2.2x farther apart (fix 178-genre crowding)

Paul: "spread the vectors out farther, they're overlapping, it's easy to zoom, we have room." At 178 genres the layout only cleared labels by a hair (~19px min gap at default zoom), which reads as overlapping/crowded.

• Widened the relaxation's separation targets: MIN_DOT 52->72 (guaranteed dot spacing at default zoom) plus a per-label SEP moat, and strengthened the similarity spring (0.012->0.014, active longer) so clusters…

• Note for the record: the layout measures a monospace font for determinism, but labels render in VT323, which measures ~0.66x as wide

Verified: 178/178 placed, 0 overlaps, 42px min gap, D2e clusters intact, PASS.

▶ Play it: Neon Fiscal Year → Benthic Patience → Silken Reentry — a constellation across three families — the path is the mix https://stellate.app/?genre=citypop&seed=9846&path=1530.6221,586.10667,1376.19565&xdur=0.056

9895568 https://github.com/aboard-io/stellate/commit/98955686829289314383d50cc3fc16fde2b4b5aa