Switch SSR + shell from native Sx_render to SX adapter (render-to-html
from adapter-html.sx) via CEK evaluator. Handles reactive primitives
(signals, deref, computed) for island bodies. Native renderer as fallback.
Header island SSRs correctly: (<sx>), tagline, copyright, path.
Stepper renders body but ~cssx/tw shows as raw SX (client-affinity
component not expanded server-side, client not expanding either).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
giles
6a22699587