[joeblau]

Prepares the 0.3.0 release of @bloxwap/haptic. The npm run bench suite (#35) found four performance issues, and this release ships the fixes, which have already been merged to main:

• perf: tree-shake web-haptics out of triggerHaptic imports (−62% gzip) #42 (closes Tree-shake web-haptics out of imperative triggerHaptic imports (−2 KB gzip) #36): triggerHaptic no longer bundles web-haptics. The imperative-only import went from 3,313 to 1,273 gzip bytes (−62%).
• perf: create the host MutationObserver only on the iOS native path #43 (closes Create the host MutationObserver only on the iOS native path #38): the host MutationObserver now runs only on the iOS native path. Observers per instance (vibration / iOS / desktop) went from 1/1/1 to 0/1/0. Vibration mount for 1,000 targets dropped by about 24%.
• perf: resolve iOS routing on the first client-only render (useSyncExternalStore) #44 (closes Resolve iOS routing with useSyncExternalStore to cut iOS mount renders from 3 to 1 #39): useIOSNativeHaptics() now resolves on the first client-only render. iOS commits per mount went from 3 to 2. This is a visible behavior change, which is why the version is a pre-1.0 minor.
• perf: skip the web-haptics engine on desktop browsers without vibration #45 (closes Skip WebHaptics engine, hidden DOM and rAF loop on desktop browsers without vibration #37): desktop browsers without vibration no longer get a web-haptics engine. Engines, body nodes and rAF after 100 taps went from 100/300/2 to 0/0/0, and first-tap cost fell by about 70%.

Changes

• Version bumped to 0.3.0 in the package, the docs workspace dependency and the lockfile.
• Changelog dated, with release-status lines updated in the README and docs.
• New scoped pending-certification decision, .github/planning/0.3.0-release.json. Its implementation commit is 26603e7, the current main, so runtime source is unchanged after it.
• RELEASING.md and releasing.mdx now reference the new decision.

Device-testing notes

Every benchmark number above is a simulated-browser measurement (Node 24, production React, jsdom with a stubbed navigator). None come from physical devices. Physical iPhone, Android, iPadOS and VoiceOver certification is still pending in #9, and the CHANGELOG, README and docs say so.

After merge: tag v0.3.0 on the merge commit and publish the GitHub release. That triggers publish_npm.yml.