feat: 2.14.0 — Eithan terminal toolbar, voice UX, Dross improvements framework

- Terminal renamed Eithan: mobile font A−/A+ (per-URL ttyd opts), same-origin
  xterm Copy/Paste buttons, scroll-to-live, touch-default 17px
- Dross voice: no keyboard pop after transcribe (fine-pointer only focus),
  autogrow textarea to ~5 lines, live amplitude meter on the mic while recording
- Dross improvements: propose_improvement tool (CSS layer, exfil-sanitized,
  owner-approved, per-improvement rollback/restore), public /improvements.css,
  Settings panel. External MCP registry unchanged (no tool leak).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

lib/api/index.js

@@ -40,6 +40,7 @@ import { router as kuttRouter } from './routes/kutt.js';
 import { router as themeRouter } from './routes/theme.js';
 import { router as drossRouter } from './routes/dross.js';
 import { router as voiceRouter } from './routes/voice.js';
+import { router as improvementsRouter, cssHandler } from './routes/improvements.js';
 
 export function mountApi(app) {
   const api = Router();
@@ -76,6 +77,7 @@ export function mountApi(app) {
   api.use('/kutt', kuttRouter);
   api.use('/theme', themeRouter);
   api.use('/dross', drossRouter);
+  api.use('/improvements', improvementsRouter);
   api.use('/voice', voiceRouter);
   api.use('/pending-changes', pendingChangesRouter);
   api.use('/audit', auditRouter);
@@ -92,6 +94,7 @@ export function mountApi(app) {
   api.use((_req, _res, next) => next(new NotFoundError('route not found')));
 
   api.use(errorMiddleware);
+  app.get('/improvements.css', cssHandler); // public, exfil-safe (see route file)
   app.use('/api', api);
   return api;
 }