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

.gitea/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: ci
+
+on:
+  push:
+    branches: [main, master, v8]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [24, 26]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+      - run: npm install
+      - run: npm test
+      - run: npm run size
+
+  e2e:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+      - run: npm install
+      - run: npx playwright install --with-deps chromium-headless-shell
+      - run: npm run test:e2e