Resolve upstream changes without dropping translations or the signal-recording guide. Add a production HTML regression for stable routes, edit links, assets and fragment targets. Refs #2401 Co-Authored-By: Codex <noreply@openai.com>
Feature specifications
Feature specifications are grouped by domain and meaningful feature slug. Each
directory owns one spec.md, one plan.md and one tasks.md.
Follow documentation ownership and authoring for the specification lifecycle, roadmap granularity and producer-owned contracts.