v4.0.0-beta.2

4.0.0-beta.2 — unreleased

Added

• formular/devtools subpath export with a floating
  <FormularDevtools /> inspection panel. Three tabs: state (values,
  errors, flags), fields (registered paths + per-field flags), events
  (rolling log of every form event). Self-contained inline styles, no
  portals, no global CSS, opt-in via explicit render. Props for
  position, default open/tab, and an enabled kill-switch.
• Shipping as a subpath export of the same package (not a separate
  npm name) — single version, and tree-shakes out of the main bundle
  when not imported. The devtools bundle weighs 3.1 KB brotli;
  main bundle is unchanged.
• Integrated into examples/vite-react so you can poke at it via
  npm run dev.

Changed

• tsdown.config.ts switched from a single multi-entry build to two
  independent build passes (dist/index.js + dist/devtools/index.js).
  The multi-entry approach produced a shared chunk that every entry
  had to load, inflating the main bundle for consumers that don't use
  devtools. Two passes produce self-contained bundles — devtools pays
  a small code-duplication cost, main bundle stays lean.

Bundle

Bundle	Limit (brotli)	Actual
ESM entry	6.5 kB	5.96 kB (unchanged)
CJS entry	7 kB	6.22 kB (unchanged)
Tree-shaken core	5 kB	4.32 kB (unchanged)
Devtools subpath	5 kB	3.12 kB (new)