Load sx/sxc/ directory for core layout components like ~docs/page, ~docs/section, ~docs/code. Auto-detect Docker (/app/sxc) vs dev (/project/sx/sxc) paths with SX_SXC_DIR env override. Fixes pages that use ~docs/page — all content pages now render correctly with full component expansion. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>