STEAM_SIGNIN.md gains its Built section (section 8) and status; MODULE_API.md records 1.17.0 (ctx.identities.list, onIdentityLinking, onIdentityLinked); BACKEND_DESIGN.md gains the auth_providers / user_identities shapes, the identities route with ?id=, and the Steam security notes in section 6; PLAN_REDESIGNS section 15 notes the build. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY