docs: tell the ReadonlyView product story

[Cylop]

Summary

• Reframe the README and website around the problem: expose live internal data without exposing mutation.
• Add mental-model, use-case, decision-guide, and expanded API documentation.
• Add tested SDK, registry, and plugin examples with owner liveness and consumer mutation rejection.
• Add accessible website story, comparison, fit guidance, calls to action, and short-viewport keyboard navigation.
• Add unpublished, channel-native launch drafts and long-form technical content under marketing/.
• Improve npm keyword discoverability without adding dependencies or exports.

Verification

• npm run release:check — 102 unit tests plus types, package, website, size, benchmark, and release checks
• npm run test:browser — 28 passed locally across Chromium and Firefox; WebKit remains required in Linux CI
• Product range has no src/ diff from the hardening base
• npm package remains the intended seven files and excludes marketing/
• Independent final delivery review: 0 Critical, 0 Important, 0 Minor

Delivery gate

This is a stacked PR based on fix/native-method-hardening so its diff contains communication work only. Do not retarget to main, merge, deploy, or post the marketing drafts until PR #5 is merged and @nipe-solutions/[email protected] plus npm latest = 2.0.1 are publicly verified.

Nothing in this PR publishes npm, deploys the website, or posts to social channels.

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Project	Deployment	Actions	Updated
readonly-view	Ready	Preview	Sep 4, 2026 11:30am UTC