rebrand: buuh — a friendly public fork under the uhhm org

Packages renamed to the @uhhm scope (@uhhm/buuh, @uhhm/buuh-html,
@uhhm/buuh-component, @uhhm/buuh-devtools, @uhhm/buuh-migrate,
@uhhm/bankai). Scoping is load-bearing twice over: npm routes registries
per scope so @uhhm/* resolves against project.uhhm.no while everything
else stays on npmjs, and it means this fork never squats upstream's
names anywhere. The codemod now migrates choo v7 apps to the @uhhm
names. README rewritten with the fork framing and full upstream credit;
the choojs RFC moves to docs/upstream-rfc-draft.md, in the drawer for if
this work ever goes home. API unchanged — choo() is still choo().

Also: Gitea Actions CI + release workflows (npm publish to the uhhm
registry on tag push, CDN bundle uploaded as a generic package),
npm run bundle producing dist-cdn/buuh.js (the whole framework as one
minified ES module for import-map use), docs/publishing.md explaining
what Gitea Packages is (a real npm registry) and is not (a CDN — serve
the bundle from a static host with module-safe MIME instead), and
onload.js constructing window.MutationObserver to match its own guard
(surfaced by smoke-testing the bundle outside a full browser).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014NgfSjHE11oFpoSnLVKLXd

packages/component/test/component.test.js

@@ -5,7 +5,7 @@ import { test, before } from 'node:test'
 import assert from 'node:assert'
 import { Window } from 'happy-dom'
 
-import serverHtml from '@choojs/html/server'
+import serverHtml from '@uhhm/buuh-html/server'
 
 test('renders via createElement on the server (no window)', async () => {
   const { default: Component } = await import('../index.js')
@@ -29,8 +29,8 @@ test('browser: render, mount, update morphs in place, proxy stands in', async ()
   // module registry caches per specifier; component/index.js re-evaluates
   // _hasWindow per instance, so importing after globals are set is enough
   const { default: Component } = await import('../index.js?browser')
-  const { default: html } = await import('@choojs/html/browser')
-  const { default: morph } = await import('@choojs/html/morph')
+  const { default: html } = await import('@uhhm/buuh-html/browser')
+  const { default: morph } = await import('@uhhm/buuh-html/morph')
 
   class Counter extends Component {
     createElement (n) {