## Modular refactor + dev section

Restructured the site from a single 380-line `index.html` into a small modular `src/` tree that builds back into one fully-inlined, contract-clean `index.html`. Behaviour and visuals are unchanged; the codebase is now testable and easy to extend.

- **Three-tier architecture** under `src/`: pure `core/` logic (risk-queue state machine, a safe Markdown parser, version formatting), a thin `services/` IO edge for reading vault files, and `components/` as light-DOM custom elements (`rm-risk-queue`, `rm-dev-releases`).
- **Build-inline pipeline** (`build.js`): authoring stays modular, but the shipped artifact is a single inlined file so it runs identically in the SG/App host, the vault preview, and the static domain.
- **Unit tests** with `node:assert` cover the pure core with known-answer vectors; the build runs them as a gate alongside syntax, contract, and version-lockstep checks.
- **New Dev section** (this one) renders these release notes live from `dev/releases/`.
- **New versioning**: the version now lives in a bare `version` file; release details live as Markdown in `dev/releases/`, replacing `version.json`, `CHANGELOG.md`, and the standalone changelog page.