Counterweight Choir v0.4 realistic image contract

Real material/dot/hook preview and accessibility controls.

Match the previous Counterweight Choir generation: bright contemporary gallery, tall slender aluminum mobile, fine tension wires, real porcelain/stone/metal counterweights, hard architectural daylight, warm-white acrylic panels, graphite type, restrained cobalt actions. Standard gameplay contains seven to ten weights; FTUE may use five. Explain swap, exact settle, target pose, and future hook physically. No printed numeric mass labels, equations, torque, signed angles, degree ticks, M/H/L, resonance tokens, phrase rail, calibration diagnostics, candy colors, soft toy blobs, cartoon faces, owner UI, or currency.

Source refs: SCR-ACCESSIBILITY A-COLOR A-MOTION A-TEXT A-HAPTIC A-READER A-TAP