docs: add LLM-focused API shape audit and recommendations

[developit]

Motivation

• Provide a focused, LLM-oriented audit of Kinu's public API shape to surface token-level ambiguities and composition inconsistencies.
• Recommend a minimal, guessable contract so models (and humans) produce correct code from a short prompt and component list.
• Propose concrete, low-runtime changes and documentation/CI guidance rather than runtime refactors.

Description

• Add docs/kinu-api-shape-audit.md, a deep review that documents current API topology, nomenclature issues (e.g. commandFor vs commandfor, flat vs namespace exports, alias leakage), an LLM error surface map, and high-impact recommendations.
• Add docs/kinu-llm-native-recommendations.md, a prescriptive plan that declares canonical rules (Component.Slot namespace in docs, frozen slot vocabulary, HTML-first event names, canonical commandFor spelling), CI/fixture suggestions, rollout phases, and a terse 2-sentence Kinu card.
• The recommendations prioritize documentation, a small "grammar card", and contract lint/first-try fixture checks over adding heavy metadata or runtime abstractions.

Testing

• This is a documentation-only change; no automated tests were executed as part of this PR.

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Codex Task

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[github-actions]

Size Change: 0 B

Total Size: 37.7 kB

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Filename	Size
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benchmarks/size/.tmp/few-components/bundle.js	637 B
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benchmarks/size/.tmp/nearly-all-components/bundle.js	4 kB
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benchmarks/size/.tmp/one-component/bundle.js	341 B
dist/index.css	10.9 kB
dist/index.js	6.34 kB

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