Add AutoType custom component

[CarlosNZ]

Closes #393.

A new AutoType component for @json-edit-react/components: an edit-only node that replaces the Type selector with a single plain text input and infers the value's type from what you type.

• 12.3 → number, true/false → boolean, null → null, {"a":1} → object, [1,2,3] → array, and anything that doesn't parse stays a string.
• Applies to every value node (guard ({ value }) => !isCollection(value)); collections aren't matched, so they keep their built-in "Edit as JSON" editor. The leaf→collection direction works too — type an object literal into a leaf and it grows into a real collection.
• No type selector by design — pair it with allowTypeSelection={false}.

How it works

The type detection lives in the definition's fromStandardType (componentProps?.jsonParse ?? JSON.parse), so every confirm path (Enter / ✓ / Tab) funnels through one transform — the established pattern for the shipped components. The component itself is ~10 lines: a StringEdit over the value.

An unchanged confirm keeps the original value via a value === nodeData.value check: the edit buffer holds the committed value verbatim until the first keystroke, and nodeData.value is the committed value, so opening and confirming a stringy value without editing it never silently re-types it. (A "0077"-style string stays a string regardless, since leading zeros aren't valid number syntax.)

Optional jsonParse component prop (default JSON.parse) accepts a lenient parser such as JSON5.parse for unquoted keys, single quotes and trailing commas. jsonStringify was deliberately not added — guarded to leaf nodes, the component only ever serialises primitives, where String() matches any JSON serializer.

Included

• Component + definition + barrel export.
• Regression test (packages/components/test/AutoType.test.tsx, 12 cases): parse table, string fallback, leaf → collection, leaf → array, unchanged-revert, and the custom jsonParse override.
• README "Available components" row + details section, and a CHANGELOG entry under the pending 0.9.0-beta.4.
• A JSON5-powered demo example at /examples/auto-type.

Verification

• pnpm --filter @json-edit-react/components compile ✅, build ✅ (tree-shake check still passes — hyperlinkDefinition → 1.2 kB, no heavy deps pulled).
• Full Jest suite: 30 suites, 712 passed, no regressions.
• Demo tsc -b ✅.

🤖 Generated with Claude Code

[github-actions]

Bundle size impact

@json-edit-react/components

Format	Base raw	PR raw	Δ raw	Base gzip	PR gzip	Δ gzip
esm	13.97 KB	14.47 KB	🔺 +512 B (+3.58%)	4.63 KB	4.76 KB	🔺 +136 B (+2.87%)
cjs	14.56 KB	15.10 KB	🔺 +560 B (+3.76%)	4.48 KB	4.62 KB	🔺 +136 B (+2.96%)

_{Measured from build/index.{cjs,esm}.js. Gzip at level 9.}