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

electron/logger.ts

@@ -0,0 +1,45 @@
+import { app } from 'electron';
+import fs from 'node:fs';
+import path from 'node:path';
+import type { LogEntry } from '../shared/ipc';
+
+const MAX_LOG_BYTES = 5 * 1024 * 1024;
+
+export function getLogPath(): string {
+  return path.join(app.getPath('userData'), 'eveflow.log');
+}
+
+export function writeLog(entry: LogEntry): void {
+  try {
+    const logPath = getLogPath();
+    const data = entry.data !== undefined ? ' | ' + safeJson(entry.data) : '';
+    const line = `[${entry.ts}] [${entry.level}] [${entry.tag}] ${entry.message}${data}\n`;
+    try {
+      const stat = fs.statSync(logPath);
+      if (stat.size > MAX_LOG_BYTES) fs.renameSync(logPath, logPath + '.old');
+    } catch {
+      /* first start: file does not exist yet */
+    }
+    fs.appendFileSync(logPath, line, 'utf8');
+  } catch (err) {
+    console.error('[logger] cannot write log file:', (err as Error).message);
+  }
+}
+
+export function log(level: LogEntry['level'], tag: string, message: string, data?: unknown): void {
+  const entry: LogEntry = { ts: new Date().toISOString(), level, tag, message, data };
+  const consoleLine = `[${tag}] ${message}`;
+  if (level === 'ERROR') console.error(consoleLine, data ?? '');
+  else if (level === 'WARN') console.warn(consoleLine, data ?? '');
+  else console.log(consoleLine, data ?? '');
+  writeLog(entry);
+}
+
+function safeJson(value: unknown): string {
+  try {
+    const text = JSON.stringify(value);
+    return text.length > 4000 ? text.slice(0, 4000) + '...' : text;
+  } catch {
+    return String(value);
+  }
+}