[clbotdev]

Fixes the page builder issues grouped under #137.

Pricing (#134)

• The desktop grid has one column per plan (up to 4), so 1–2 plans fill the row instead of leaving empty columns. A single plan is capped at max-w-xl.
• Optional Monthly/Yearly switch: pricingSwitcher, monthlyPriceCaption, yearlyPriceCaption, defaultPeriod (defaults to yearly, like CourseLit). Each tier gets priceYearly and buttonActionYearly, which fall back to price / buttonAction.
• Both prices are in the server-rendered HTML. A small client island (pricing-period-switch) sets data-period and CSS shows the matching price and button.

Header (#132, #133)

• The mobile menu button only renders when there's a link or CTA to show.
• Optional GitHub link: githubRepo (owner/repo or a github.com URL) and showGithubStars. The star count is fetched in the browser (island header-github-stars) so it doesn't use the server's GitHub API quota, and is hidden on error or 0. The field is a plain string; the header ignores values that don't parse as a repo, so clearing or half-typing it still autosaves.

Block icons

Every built-in block sets metadata.icon, so the "Add a block" picker and the block settings header show a distinct icon per block instead of one shared layout icon.

Schema

Zod schemas updated; schema/page.v1.json and schema/site.v1.json regenerated. Changeset included.

Testing

• New tests: pricing columns for 1–5 plans, the switch, yearly fallbacks and links; GitHub repo parsing, the link in all three header layouts, the hamburger rule; schema acceptance (including a cleared githubRepo); every block having a distinct, valid icon.
• bun run typecheck and bun run test pass across the workspace.
• Browser smoke on a local stack: edited a team's homepage in the editor, published, and checked the live site at desktop and 390px. Covered 2 plans filling the row, toggling Yearly ↔ Monthly (price and button link both switch), the GitHub link with its star count, the hamburger hidden with no links or CTA, distinct icons in the block picker, and clearing each new field (it saves).

Not in this PR

• Document the new fields in frontlit-skills (frontlit-pages/references/blocks.md).
• Switch medialit.frontlit.app to the new pricing switch and GitHub link once released.
• Existing behaviour, not changed here: header-only edits don't enable the page editor's Publish button.

Closes #132, closes #133, closes #134.