docs(adr,protocol): v1 status sweep + block-library author guide (T-7.1)

[slavasolutions]

T-7.1 — ADR sweep + block-library author guide + CONTENT-PROTOCOL polish.

ADR sweep

• 0007 (pages-as-folders) → Reframed by ADR-0021 (page block storage shifted to v1 dialect)
• 0008 (saas-renderer-on-cloudflare-workers) → Superseded by ADR-0024 (Workers renderer dropped for self-hosted Astro)
• 0021–0028 each gain an Implementation status (2026-05-07) section citing the PRs that landed each piece (or "scoped for v1.0 stamp" for items still in flight)

ADR README index

• 0007 row updated to reframed
• 0019 noted as skipped/reserved
• 0021–0028 annotated with v1 impl status
• New "v1 ADR set — one-line summaries" section

New file: docs/guides/block-library-authoring.md

~325 lines covering:

• What a block library is (per ADR-0024 + 0028) — npm package exporting components + Zod schemas
• Required exports (component + schema + name + version)
• Widget vocabulary (ADR-0027): text, textarea, url, image, select, markdown
• `optionsFromTokens` for binding to bucket tokens (ADR-0025)
• Versioning + migrations (ADR-0022): when to bump block schemaVersion + how to ship a migration
• Publishing cadence (ADR-0028): scaffolder lockstep, semver minor for new blocks, major for break
• Worked Pricing block example (Zod → Astro component → register in package.json)
• Reference: `@clearcms/blocks-marketing`

CONTENT-PROTOCOL polish (additive)

• "What's new in v1" section near top (5 bullets: site-mode, theme tokens, block library, schemaVersion, markdown widget)
• Cross-link to author guide
• Renderer name fix: `clear-site` → `@clearcms/renderer` per ADR-0024

Changeset

Empty frontmatter — root docs, no package version bumps.

Independence

`git diff --stat origin/release/v1.0` shows only docs/* and .changeset/*. Zero S1-territory paths.

Closes T-7.1.

🤖 Generated with Claude Code