feat(ui): static shell + router + api wrapper

Three-column grid (sidebar / main / right rail) with Cradle aesthetic:
blackflame accent on Cinzel display headings + Cormorant Garamond body
in cards, system UI for chrome. Hash-based router covers all entity
routes plus search, inbox, sacred-valley. api.js stores OWNER_TOKEN in
localStorage and prompts via a modal on 401. dom.js provides safe el()
+ mount() builders so no component ever assigns innerHTML from API data
(the only exception is an explicit, scary-named html: opt-in for
sanitizer output, used later by the markdown editor).

state.js is a tiny event bus for shared chrome state (pending count).
Components and views are loaded as ES modules — sidebar / topbar /
rightrail + 9 view stubs that the later Phase E tasks fill in.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

server.js

@@ -9,6 +9,7 @@ const VERSION = '2.0.0-alpha.1';
 export function createApp() {
   const app = express();
   app.use(express.json({ limit: '10mb' }));
+  app.use(express.static('public'));
 
   app.get('/health', async (_req, res) => {
     let db_ok = false;