docs: bootstrap Convert Ruby SDK wiki Shared cross-SDK concept docs (copied from the sibling wiki, links rewritten to this wiki) + Ruby-specific pages (Quickstart, Installation, Initialization, Configuration, ReturnTypes & Sentinels, CodeExamples, ForkSafety & Runtime Recipes, TrackingControl, Testing, Changelog) + AI_Index routing table, Home, sidebar/footer, CLAUDE authoring rules, and sdk-docs-config readme.io mapping. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

abbaseya committed Jun 8, 2026