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>

tests/ai/agent/tools/index.test.js

@@ -2,9 +2,9 @@ import { describe, it, expect } from 'vitest';
 import { companionRegistry } from '../../../../lib/ai/agent/tools/index.js';
 
 describe('companion registry', () => {
-  it('registers exactly the four v1 tools', () => {
+  it('registers exactly the five companion tools', () => {
     expect(companionRegistry.listTools().map(t => t.name).sort())
-      .toEqual(['context', 'propose_change', 'read', 'search']);
+      .toEqual(['context', 'propose_change', 'propose_improvement', 'read', 'search']);
   });
   it('exposes them in Anthropic shape', () => {
     const tools = companionRegistry.toAnthropicTools();