feat!: rebuild EveFlow as a JARVIS-style voice HUD for Hermes Agent (v2.0.0)

Complete rewrite of the application:

- Toolchain: Electron 44, Vite 8, React 19, TypeScript 5.9, Zustand, Vitest;
  main process rewritten in TypeScript (electron/), typed IPC contract (shared/),
  sandboxed renderer with webSecurity on and an HTTP/SSE proxy in the main process.
- Voice: AudioWorklet microphone capture at 16 kHz with adaptive energy VAD and
  auto-stop, WAV encoder, OpenAI-compatible STT, TTS queue with sentence-level
  streaming, prefetch and Web Audio playback feeding an analyser; hands-free mode,
  global push-to-talk hotkey, system-voice fallback.
- Hermes: full API client (capabilities, health, models, skills, toolsets,
  sessions, jobs) with automatic transport selection: runs API (SSE lifecycle,
  approvals, steer, stop) > sessions stream > chat completions with local tools;
  tolerant event normalisation; webhook receiver hardened (secret, size limit).
- UI: JARVIS arc-reactor core on Canvas 2D reacting to the real audio signal,
  holographic HUD layout (transcript, core, Hermes ops panel with tools/crons/
  skills/sessions/link tabs, telemetry), settings drawer, approval modals,
  compact floating widget, four themes, tray icon and global shortcuts.
- Removed the 3D Eve robot, three.js and legacy assets; migrated 1.x settings.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017Wn5VX9HNbJ7N54hR24u9Y

src/styles/settings.css

@@ -0,0 +1,106 @@
+.settings-drawer {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  z-index: 15;
+  width: min(560px, 100%);
+  display: flex;
+  flex-direction: column;
+  background: var(--panel-strong);
+  border-left: 1px solid var(--line-strong);
+  backdrop-filter: blur(18px);
+  box-shadow: -30px 0 80px rgba(0, 0, 0, 0.55);
+  animation: slide-in 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
+}
+@keyframes slide-in {
+  from {
+    transform: translateX(30px);
+    opacity: 0;
+  }
+}
+.settings-drawer .panel-head {
+  padding: 12px 16px;
+}
+.settings-nav {
+  display: flex;
+  gap: 4px;
+  padding: 8px 12px;
+  border-bottom: 1px solid var(--line);
+  overflow-x: auto;
+}
+.settings-nav button {
+  padding: 6px 10px;
+  border-radius: 6px;
+  border: 1px solid transparent;
+  background: transparent;
+  color: var(--ink-3);
+  font-family: var(--font-display);
+  font-size: 10px;
+  letter-spacing: 0.14em;
+  text-transform: uppercase;
+  cursor: pointer;
+  white-space: nowrap;
+}
+.settings-nav button.active {
+  color: var(--accent);
+  border-color: var(--line-strong);
+  background: rgba(var(--accent-rgb), 0.1);
+}
+.settings-body {
+  flex: 1;
+  min-height: 0;
+  overflow-y: auto;
+  padding: 16px 18px 24px;
+}
+.settings-body .card {
+  padding: 12px 14px;
+  margin-bottom: 14px;
+  border: 1px solid var(--line);
+  border-radius: 8px;
+  background: rgba(var(--accent-rgb), 0.04);
+}
+.test-result {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-family: var(--font-mono);
+  font-size: 12px;
+  padding: 8px 10px;
+  border-radius: 6px;
+  border: 1px solid var(--line);
+}
+.test-result.ok {
+  color: var(--success);
+  border-color: rgba(var(--success-rgb), 0.5);
+}
+.test-result.fail {
+  color: var(--danger);
+  border-color: rgba(var(--danger-rgb), 0.5);
+}
+.theme-swatches {
+  display: flex;
+  gap: 8px;
+}
+.swatch {
+  width: 34px;
+  height: 34px;
+  border-radius: 50%;
+  border: 2px solid transparent;
+  cursor: pointer;
+  box-shadow: inset 0 0 0 3px var(--bg-0);
+}
+.swatch.active {
+  border-color: #fff;
+}
+.level-meter {
+  height: 8px;
+  border-radius: 4px;
+  background: rgba(var(--accent-rgb), 0.1);
+  overflow: hidden;
+}
+.level-meter > div {
+  height: 100%;
+  background: linear-gradient(90deg, var(--accent), var(--success));
+  transition: width 60ms linear;
+}