docs: Phase 4 complete — bankai v10

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

docs/v8.md

@@ -87,6 +87,32 @@ Server string rendering is on par with nanohtml v1 (~13k ops/s, within
 - [ ] Phase 3 follow-ups for the RFC: API shape feedback on lazy()
       (thenable handlers vs wrapper), serializing streamed state for
       hydration of async holes (bankai v10 territory).
+- [x] Phase 4: bankai v10 — `packages/bankai`, a thin shell over Vite 8
+      (Rolldown). The server side needs no build at all: v8 apps are
+      plain ESM that Node runs as-authored, so only the client bundles.
+      - `bankai start <entry>` — dev: Vite middleware mode + HMR, with
+        per-request streaming SSR through vite.ssrLoadModule and a
+        virtual client entry (the user writes one isomorphic module;
+        bankai generates the two lines of browser glue).
+      - `bankai build <entry>` — client bundle + Vite manifest +
+        dist/bankai.json route/asset metadata + service worker (if
+        `<entry dir>/sw.js` exists, built with the precache list
+        injected) + brotli/gzip precompression of every text asset.
+      - `bankai serve` — production: static assets with immutable
+        caching and precompressed-variant negotiation, 103 Early Hints
+        (`res.writeEarlyHints`) carrying the route's assets before every
+        SSR page, streaming render, and a `window.initialState` tail
+        (script-safe serialization, choo internals filtered; hydration
+        ignores server-only scripts).
+      - `bankai inspect` — raw/gzip/brotli size table from the manifest.
+      All proven end-to-end in real Chromium: both dev and prod pages
+      hydrate with zero console errors and zero mismatch warnings, and
+      the 103 interim response is asserted at the HTTP level.
+- [ ] Phase 4 follow-ups: HTTP/2 dev server with local certs (browsers
+      only act on Early Hints over h2/h3), static prerender of
+      enumerable routes, SSR `<title>` from state (needs a head hook in
+      toStream), edge-runtime deploy recipe (`new Response(toStream())`
+      — the server core is already web-standard).
 - [ ] Phase 4: bankai v10 (Vite 8/Rolldown shell, SSR middleware,
       103 Early Hints, service worker, precompression)
 - [ ] Phase 5: docs, examples, launch