- Add VegaZoom.js with Phaser-free zoom ladder builder, verifiable headlessly
- Replace hardcoded ZOOMS array with galaxy-sized ladder anchored so the
bottom rung exactly covers the viewport
- Remove 160 px of pan slack in clampPan so empty space can never be dragged
into view
- Key semantic-zoom thresholds (isFarZoom / isNearZoom) to ladder index
instead of absolute scale, keeping behaviour consistent across galaxy sizes
- Add section 3b to verifyMasterOfVega.js with 163 new checks covering
ladder coverage, covering-zoom invariant, top-rung reach, and tiny-galaxy
single-step collapse
Brian Fertig
7f1cfcc982