Update build scripts and README: Enhance build command to include static HTML checks and curriculum validation, streamline development process with new dev script, and clarify local development instructions. Update curriculum wiring in catalog to support dynamic subject loading and improve Mermaid map integration.

README.md

@@ -19,7 +19,7 @@ Free, open-source textbooks for every learner — from elementary school through
 | Search | [Pagefind](https://pagefind.app/) (post-build index, Component UI) |
 | Hosting | Cloudflare Workers (static assets via Wrangler) |
 
-Chapter content is **HTML partials** in the theme today (not Markdown). Canvas maps use the [JSON Canvas](https://jsoncanvas.org/) standard (Obsidian-compatible) via [json-canvas-viewer](https://github.com/Hesprs/JSON-Canvas-Viewer).
+Chapter content is **HTML partials** in the theme today (not Markdown). Catalog maps use a Mermaid-powered interactive tree view (pan/zoom).
 
 **Contributing curriculum, subjects, or chapters?** See [CONTRIBUTING.md](CONTRIBUTING.md).
 
@@ -52,15 +52,13 @@ Install JS dependencies:
 bun install
 ```
 
-Build the Solid bundle, index search (once per session or after content changes), then start Zola’s dev server:
+For day-to-day local development, run JS watch + Zola serve together:
 
 ```bash
-bun run build:js
-bun run index:search
-zola serve
+bun run dev
 ```
 
-Open [http://127.0.0.1:1111](http://127.0.0.1:1111). Re-run `bun run build:js` (or `bun run dev:js` in another terminal) when you change `frontend/`. Re-run `bun run index:search` when you change chapter HTML or add pages so search stays up to date.
+Open [http://127.0.0.1:1111](http://127.0.0.1:1111). Re-run `bun run index:search` when you change chapter HTML or add pages so search stays up to date.
 
 Search UI is available immediately; results require the index step above (`static/pagefind/` is gitignored and copied from the build output).
 
@@ -98,38 +96,6 @@ The visual design is inspired by [manlung.work](https://manlung.work/): paper ba
 
 These issues make contributions harder than they should be. PRs that fix any item are welcome.
 
-### Catalog & data
-
-- [ ] **Auto-wire subjects in `catalog.html`** — stop hardcoding `if subject.id == "math"`; load `data/{id}-curriculum.json` by subject `id` convention.
-- [ ] **Single source for subjects** — merge `catalog.json` subject stubs and `{subject}-curriculum.json` or generate one from the other at build time.
-- [ ] **`scripts/validate-curriculum.ts`** — JSON schema check: slugs, `curriculums` ⊆ global list, live chapters have `content/`, `graph.edges` acyclic.
-- [ ] **Document or script new curriculum labels** — today requires `catalog.json`, Sass badge, and TS `curriculumBadgeClass()` mapping.
-
-### Chapters & content
-
-- [x] **Colocated chapter folders** — `content/{subject}/{slug}/` with `sync:chapters`, generic `chapter.html`, auto widget registry.
-- [x] **Strand kicker from front matter** — `[extra] strand` in `_index.md`.
-- [ ] **Subject-agnostic catalog load in chapter template** — breadcrumb still loads `math-curriculum.json` literally until more subjects go live.
-- [ ] **Markdown chapters (optional)** — README/spec disagree on format; if staying HTML, document clearly everywhere.
-- [ ] **Defuddle “copy as Markdown”** — spec calls for it on every page; not implemented.
-
-### Site & discoverability
-
-- [ ] **Data-driven homepage cards** — “Browse by subject” / featured blocks duplicate manual edits in `index.html`.
-- [x] **Pagefind search** — `/search/`, header modal (⌘K), `bun run index:search` for local dev.
-- [ ] **CONTRIBUTING wizard or checklist in CI** — fail PR if live chapter missing partial or catalog entry.
-
-### Build & repo hygiene
-
-- [ ] **Prevent stale theme `static/**/*.html`** — committed copies under `themes/openfreebooks/static/` override Zola output (index, catalog, math); add CI check or pre-commit.
-- [ ] **Clarify package manager** — project uses **Bun** (`bun run build`); align docs/tooling if pnpm is preferred elsewhere.
-- [ ] **`dev` one-liner** — e.g. `bun run dev` running `vite build --watch` + `zola serve` together.
-
-### New subject onboarding
-
-- [ ] **Subject scaffold command** — e.g. `bun run scaffold:subject science` creating `data/science-curriculum.json`, `content/science/_index.md`, and catalog entry.
-- [ ] **Redirect template generic** — `math-redirect.html` → `subject-redirect.html` using `?subject=` from section path.
-
 ## Agent skills
 
 | Skill | Path | Use |