fix(package): resolve extensionless hook subpaths

[xobotyi]

Fixes the subpath resolution problem found while reviewing #1670.

Problem

$ node -e "import('@react-hookz/web/useToggle')"
Error [ERR_UNSUPPORTED_DIR_IMPORT]: Directory import '.../dist/useToggle' is not supported

"./*": "./dist/*" maps useToggle onto a directory, so the natural extensionless specifier has never worked — only the useToggle/index.js form the README documented, or the useToggle/ trailing-slash form, which Node warns about:

DeprecationWarning: Use of deprecated trailing slash pattern mapping "./useToggle/" ...
Mapping specifiers ending in "/" is no longer supported. (DEP0155)

Change

 "exports": {
   ".": "./dist/index.js",
   "./package.json": "./package.json",
-  "./*/": "./dist/*/index.js",
-  "./*": "./dist/*"
+  "./*.js": "./dist/*.js",
+  "./*": "./dist/*/index.js",
+  "./*/": "./dist/*/index.js"
 }

./* now targets the directory's entry file, and ./*.js preserves explicit file paths — its * matches slashes, so useToggle/index.js still lands on dist/useToggle/index.js. Exact keys and pattern specificity ordering are handled by Node, not by key order.

./*/ is kept deliberately. It is deprecated, but it is the only form that worked for people who wanted a directory-style import, and dropping it would break them for no gain — it warns only when used.

Purely additive: every specifier that resolved before resolves to the same file.

Verification

Packed the tarball, installed it into a scratch consumer with react 19, and resolved each form (Node 26):

Specifier	Before	After
@react-hookz/web	ok	ok, 62 exports
@react-hookz/web/useToggle	ERR_UNSUPPORTED_DIR_IMPORT	ok
@react-hookz/web/useToggle/index.js	ok	ok
@react-hookz/web/useMeasure	ERR_UNSUPPORTED_DIR_IMPORT	ok, 3 exports
@react-hookz/web/types.js	ok	ok
@react-hookz/web/util/const.js	ok	ok
@react-hookz/web/package.json	ok	ok
@react-hookz/web/useToggle/	ok + DEP0155	ok + DEP0155

Types follow the same map — tsc under moduleResolution: NodeNext accepts import {useToggle} from '@react-hookz/web/useToggle' and import type {Measures} from '@react-hookz/web/useMeasure' against the packed tarball (exit 0).

README's direct-import example switches to the short form.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.19%. Comparing base (acdc7e5) to head (8584e3c).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1694   +/-   ##
=======================================
  Coverage   83.19%   83.19%           
=======================================
  Files          62       62           
  Lines         839      839           
  Branches      151      151           
=======================================
  Hits          698      698           
  Misses         16       16           
  Partials      125      125           

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[Copilot]

Pull request overview

This PR updates @react-hookz/web’s package export map so extensionless hook subpath imports (e.g. @react-hookz/web/useToggle) resolve to the hook directory entry file instead of a directory path, and updates the README to document the shorter import form.

Changes:

• Adjust package.json#exports so ./* resolves to ./dist/*/index.js (fixing ERR_UNSUPPORTED_DIR_IMPORT for extensionless hook imports).
• Add a ./*.js export pattern to preserve explicit .js deep imports (including useX/index.js forms).
• Update README direct-import example to use @react-hookz/web/useMountEffect instead of the explicit .../index.js path.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
README.md	Updates docs to show the now-supported extensionless single-hook import.
package.json	Fixes subpath export resolution by mapping extensionless subpaths to each hook’s index.js, while preserving explicit .js deep imports.

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[xobotyi]

🎉 This PR is included in version 26.1.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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