Initial commit: Flutter 无书应用项目

2026-03-30 02:35:31 +08:00
commit 9175ff9905
566 changed files with 103261 additions and 0 deletions
--- a/.trae/skills/brainstorming/scripts/frame-template.html
+++ b/.trae/skills/brainstorming/scripts/frame-template.html
@@ -0,0 +1,214 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Superpowers Brainstorming</title>
+  <style>
+    /*
+     * BRAINSTORM COMPANION FRAME TEMPLATE
+     *
+     * This template provides a consistent frame with:
+     * - OS-aware light/dark theming
+     * - Fixed header and selection indicator bar
+     * - Scrollable main content area
+     * - CSS helpers for common UI patterns
+     *
+     * Content is injected via placeholder comment in #claude-content.
+     */
+
+    * { box-sizing: border-box; margin: 0; padding: 0; }
+    html, body { height: 100%; overflow: hidden; }
+
+    /* ===== THEME VARIABLES ===== */
+    :root {
+      --bg-primary: #f5f5f7;
+      --bg-secondary: #ffffff;
+      --bg-tertiary: #e5e5e7;
+      --border: #d1d1d6;
+      --text-primary: #1d1d1f;
+      --text-secondary: #86868b;
+      --text-tertiary: #aeaeb2;
+      --accent: #0071e3;
+      --accent-hover: #0077ed;
+      --success: #34c759;
+      --warning: #ff9f0a;
+      --error: #ff3b30;
+      --selected-bg: #e8f4fd;
+      --selected-border: #0071e3;
+    }
+
+    @media (prefers-color-scheme: dark) {
+      :root {
+        --bg-primary: #1d1d1f;
+        --bg-secondary: #2d2d2f;
+        --bg-tertiary: #3d3d3f;
+        --border: #424245;
+        --text-primary: #f5f5f7;
+        --text-secondary: #86868b;
+        --text-tertiary: #636366;
+        --accent: #0a84ff;
+        --accent-hover: #409cff;
+        --selected-bg: rgba(10, 132, 255, 0.15);
+        --selected-border: #0a84ff;
+      }
+    }
+
+    body {
+      font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
+      background: var(--bg-primary);
+      color: var(--text-primary);
+      display: flex;
+      flex-direction: column;
+      line-height: 1.5;
+    }
+
+    /* ===== FRAME STRUCTURE ===== */
+    .header {
+      background: var(--bg-secondary);
+      padding: 0.5rem 1.5rem;
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      border-bottom: 1px solid var(--border);
+      flex-shrink: 0;
+    }
+    .header h1 { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
+    .header .status { font-size: 0.7rem; color: var(--success); display: flex; align-items: center; gap: 0.4rem; }
+    .header .status::before { content: ''; width: 6px; height: 6px; background: var(--success); border-radius: 50%; }
+
+    .main { flex: 1; overflow-y: auto; }
+    #claude-content { padding: 2rem; min-height: 100%; }
+
+    .indicator-bar {
+      background: var(--bg-secondary);
+      border-top: 1px solid var(--border);
+      padding: 0.5rem 1.5rem;
+      flex-shrink: 0;
+      text-align: center;
+    }
+    .indicator-bar span {
+      font-size: 0.75rem;
+      color: var(--text-secondary);
+    }
+    .indicator-bar .selected-text {
+      color: var(--accent);
+      font-weight: 500;
+    }
+
+    /* ===== TYPOGRAPHY ===== */
+    h2 { font-size: 1.5rem; font-weight: 600; margin-bottom: 0.5rem; }
+    h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.25rem; }
+    .subtitle { color: var(--text-secondary); margin-bottom: 1.5rem; }
+    .section { margin-bottom: 2rem; }
+    .label { font-size: 0.7rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
+
+    /* ===== OPTIONS (for A/B/C choices) ===== */
+    .options { display: flex; flex-direction: column; gap: 0.75rem; }
+    .option {
+      background: var(--bg-secondary);
+      border: 2px solid var(--border);
+      border-radius: 12px;
+      padding: 1rem 1.25rem;
+      cursor: pointer;
+      transition: all 0.15s ease;
+      display: flex;
+      align-items: flex-start;
+      gap: 1rem;
+    }
+    .option:hover { border-color: var(--accent); }
+    .option.selected { background: var(--selected-bg); border-color: var(--selected-border); }
+    .option .letter {
+      background: var(--bg-tertiary);
+      color: var(--text-secondary);
+      width: 1.75rem; height: 1.75rem;
+      border-radius: 6px;
+      display: flex; align-items: center; justify-content: center;
+      font-weight: 600; font-size: 0.85rem; flex-shrink: 0;
+    }
+    .option.selected .letter { background: var(--accent); color: white; }
+    .option .content { flex: 1; }
+    .option .content h3 { font-size: 0.95rem; margin-bottom: 0.15rem; }
+    .option .content p { color: var(--text-secondary); font-size: 0.85rem; margin: 0; }
+
+    /* ===== CARDS (for showing designs/mockups) ===== */
+    .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
+    .card {
+      background: var(--bg-secondary);
+      border: 1px solid var(--border);
+      border-radius: 12px;
+      overflow: hidden;
+      cursor: pointer;
+      transition: all 0.15s ease;
+    }
+    .card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
+    .card.selected { border-color: var(--selected-border); border-width: 2px; }
+    .card-image { background: var(--bg-tertiary); aspect-ratio: 16/10; display: flex; align-items: center; justify-content: center; }
+    .card-body { padding: 1rem; }
+    .card-body h3 { margin-bottom: 0.25rem; }
+    .card-body p { color: var(--text-secondary); font-size: 0.85rem; }
+
+    /* ===== MOCKUP CONTAINER ===== */
+    .mockup {
+      background: var(--bg-secondary);
+      border: 1px solid var(--border);
+      border-radius: 12px;
+      overflow: hidden;
+      margin-bottom: 1.5rem;
+    }
+    .mockup-header {
+      background: var(--bg-tertiary);
+      padding: 0.5rem 1rem;
+      font-size: 0.75rem;
+      color: var(--text-secondary);
+      border-bottom: 1px solid var(--border);
+    }
+    .mockup-body { padding: 1.5rem; }
+
+    /* ===== SPLIT VIEW (side-by-side comparison) ===== */
+    .split { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
+    @media (max-width: 700px) { .split { grid-template-columns: 1fr; } }
+
+    /* ===== PROS/CONS ===== */
+    .pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1rem 0; }
+    .pros, .cons { background: var(--bg-secondary); border-radius: 8px; padding: 1rem; }
+    .pros h4 { color: var(--success); font-size: 0.85rem; margin-bottom: 0.5rem; }
+    .cons h4 { color: var(--error); font-size: 0.85rem; margin-bottom: 0.5rem; }
+    .pros ul, .cons ul { margin-left: 1.25rem; font-size: 0.85rem; color: var(--text-secondary); }
+    .pros li, .cons li { margin-bottom: 0.25rem; }
+
+    /* ===== PLACEHOLDER (for mockup areas) ===== */
+    .placeholder {
+      background: var(--bg-tertiary);
+      border: 2px dashed var(--border);
+      border-radius: 8px;
+      padding: 2rem;
+      text-align: center;
+      color: var(--text-tertiary);
+    }
+
+    /* ===== INLINE MOCKUP ELEMENTS ===== */
+    .mock-nav { background: var(--accent); color: white; padding: 0.75rem 1rem; display: flex; gap: 1.5rem; font-size: 0.9rem; }
+    .mock-sidebar { background: var(--bg-tertiary); padding: 1rem; min-width: 180px; }
+    .mock-content { padding: 1.5rem; flex: 1; }
+    .mock-button { background: var(--accent); color: white; border: none; padding: 0.5rem 1rem; border-radius: 6px; font-size: 0.85rem; }
+    .mock-input { background: var(--bg-primary); border: 1px solid var(--border); border-radius: 6px; padding: 0.5rem; width: 100%; }
+  </style>
+</head>
+<body>
+  <div class="header">
+    <h1><a href="https://github.com/obra/superpowers" style="color: inherit; text-decoration: none;">Superpowers Brainstorming</a></h1>
+    <div class="status">Connected</div>
+  </div>
+
+  <div class="main">
+    <div id="claude-content">
+      <!-- CONTENT -->
+    </div>
+  </div>
+
+  <div class="indicator-bar">
+    <span id="indicator-text">Click an option above, then return to the terminal</span>
+  </div>
+
+</body>
+</html>
--- a/.trae/skills/brainstorming/scripts/helper.js
+++ b/.trae/skills/brainstorming/scripts/helper.js
@@ -0,0 +1,88 @@
+(function() {
+  const WS_URL = 'ws://' + window.location.host;
+  let ws = null;
+  let eventQueue = [];
+
+  function connect() {
+    ws = new WebSocket(WS_URL);
+
+    ws.onopen = () => {
+      eventQueue.forEach(e => ws.send(JSON.stringify(e)));
+      eventQueue = [];
+    };
+
+    ws.onmessage = (msg) => {
+      const data = JSON.parse(msg.data);
+      if (data.type === 'reload') {
+        window.location.reload();
+      }
+    };
+
+    ws.onclose = () => {
+      setTimeout(connect, 1000);
+    };
+  }
+
+  function sendEvent(event) {
+    event.timestamp = Date.now();
+    if (ws && ws.readyState === WebSocket.OPEN) {
+      ws.send(JSON.stringify(event));
+    } else {
+      eventQueue.push(event);
+    }
+  }
+
+  // Capture clicks on choice elements
+  document.addEventListener('click', (e) => {
+    const target = e.target.closest('[data-choice]');
+    if (!target) return;
+
+    sendEvent({
+      type: 'click',
+      text: target.textContent.trim(),
+      choice: target.dataset.choice,
+      id: target.id || null
+    });
+
+    // Update indicator bar (defer so toggleSelect runs first)
+    setTimeout(() => {
+      const indicator = document.getElementById('indicator-text');
+      if (!indicator) return;
+      const container = target.closest('.options') || target.closest('.cards');
+      const selected = container ? container.querySelectorAll('.selected') : [];
+      if (selected.length === 0) {
+        indicator.textContent = 'Click an option above, then return to the terminal';
+      } else if (selected.length === 1) {
+        const label = selected[0].querySelector('h3, .content h3, .card-body h3')?.textContent?.trim() || selected[0].dataset.choice;
+        indicator.innerHTML = '<span class="selected-text">' + label + ' selected</span> — return to terminal to continue';
+      } else {
+        indicator.innerHTML = '<span class="selected-text">' + selected.length + ' selected</span> — return to terminal to continue';
+      }
+    }, 0);
+  });
+
+  // Frame UI: selection tracking
+  window.selectedChoice = null;
+
+  window.toggleSelect = function(el) {
+    const container = el.closest('.options') || el.closest('.cards');
+    const multi = container && container.dataset.multiselect !== undefined;
+    if (container && !multi) {
+      container.querySelectorAll('.option, .card').forEach(o => o.classList.remove('selected'));
+    }
+    if (multi) {
+      el.classList.toggle('selected');
+    } else {
+      el.classList.add('selected');
+    }
+    window.selectedChoice = el.dataset.choice;
+  };
+
+  // Expose API for explicit use
+  window.brainstorm = {
+    send: sendEvent,
+    choice: (value, metadata = {}) => sendEvent({ type: 'choice', value, ...metadata })
+  };
+
+  connect();
+})();
--- a/.trae/skills/brainstorming/scripts/server.cjs
+++ b/.trae/skills/brainstorming/scripts/server.cjs
@@ -0,0 +1,354 @@
+const crypto = require('crypto');
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+// ========== WebSocket Protocol (RFC 6455) ==========
+
+const OPCODES = { TEXT: 0x01, CLOSE: 0x08, PING: 0x09, PONG: 0x0A };
+const WS_MAGIC = '258EAFA5-E914-47DA-95CA-C5AB0DC85B11';
+
+function computeAcceptKey(clientKey) {
+  return crypto.createHash('sha1').update(clientKey + WS_MAGIC).digest('base64');
+}
+
+function encodeFrame(opcode, payload) {
+  const fin = 0x80;
+  const len = payload.length;
+  let header;
+
+  if (len < 126) {
+    header = Buffer.alloc(2);
+    header[0] = fin | opcode;
+    header[1] = len;
+  } else if (len < 65536) {
+    header = Buffer.alloc(4);
+    header[0] = fin | opcode;
+    header[1] = 126;
+    header.writeUInt16BE(len, 2);
+  } else {
+    header = Buffer.alloc(10);
+    header[0] = fin | opcode;
+    header[1] = 127;
+    header.writeBigUInt64BE(BigInt(len), 2);
+  }
+
+  return Buffer.concat([header, payload]);
+}
+
+function decodeFrame(buffer) {
+  if (buffer.length < 2) return null;
+
+  const secondByte = buffer[1];
+  const opcode = buffer[0] & 0x0F;
+  const masked = (secondByte & 0x80) !== 0;
+  let payloadLen = secondByte & 0x7F;
+  let offset = 2;
+
+  if (!masked) throw new Error('Client frames must be masked');
+
+  if (payloadLen === 126) {
+    if (buffer.length < 4) return null;
+    payloadLen = buffer.readUInt16BE(2);
+    offset = 4;
+  } else if (payloadLen === 127) {
+    if (buffer.length < 10) return null;
+    payloadLen = Number(buffer.readBigUInt64BE(2));
+    offset = 10;
+  }
+
+  const maskOffset = offset;
+  const dataOffset = offset + 4;
+  const totalLen = dataOffset + payloadLen;
+  if (buffer.length < totalLen) return null;
+
+  const mask = buffer.slice(maskOffset, dataOffset);
+  const data = Buffer.alloc(payloadLen);
+  for (let i = 0; i < payloadLen; i++) {
+    data[i] = buffer[dataOffset + i] ^ mask[i % 4];
+  }
+
+  return { opcode, payload: data, bytesConsumed: totalLen };
+}
+
+// ========== Configuration ==========
+
+const PORT = process.env.BRAINSTORM_PORT || (49152 + Math.floor(Math.random() * 16383));
+const HOST = process.env.BRAINSTORM_HOST || '127.0.0.1';
+const URL_HOST = process.env.BRAINSTORM_URL_HOST || (HOST === '127.0.0.1' ? 'localhost' : HOST);
+const SESSION_DIR = process.env.BRAINSTORM_DIR || '/tmp/brainstorm';
+const CONTENT_DIR = path.join(SESSION_DIR, 'content');
+const STATE_DIR = path.join(SESSION_DIR, 'state');
+let ownerPid = process.env.BRAINSTORM_OWNER_PID ? Number(process.env.BRAINSTORM_OWNER_PID) : null;
+
+const MIME_TYPES = {
+  '.html': 'text/html', '.css': 'text/css', '.js': 'application/javascript',
+  '.json': 'application/json', '.png': 'image/png', '.jpg': 'image/jpeg',
+  '.jpeg': 'image/jpeg', '.gif': 'image/gif', '.svg': 'image/svg+xml'
+};
+
+// ========== Templates and Constants ==========
+
+const WAITING_PAGE = `<!DOCTYPE html>
+<html>
+<head><meta charset="utf-8"><title>Brainstorm Companion</title>
+<style>body { font-family: system-ui, sans-serif; padding: 2rem; max-width: 800px; margin: 0 auto; }
+h1 { color: #333; } p { color: #666; }</style>
+</head>
+<body><h1>Brainstorm Companion</h1>
+<p>Waiting for the agent to push a screen...</p></body></html>`;
+
+const frameTemplate = fs.readFileSync(path.join(__dirname, 'frame-template.html'), 'utf-8');
+const helperScript = fs.readFileSync(path.join(__dirname, 'helper.js'), 'utf-8');
+const helperInjection = '<script>\n' + helperScript + '\n</script>';
+
+// ========== Helper Functions ==========
+
+function isFullDocument(html) {
+  const trimmed = html.trimStart().toLowerCase();
+  return trimmed.startsWith('<!doctype') || trimmed.startsWith('<html');
+}
+
+function wrapInFrame(content) {
+  return frameTemplate.replace('<!-- CONTENT -->', content);
+}
+
+function getNewestScreen() {
+  const files = fs.readdirSync(CONTENT_DIR)
+    .filter(f => f.endsWith('.html'))
+    .map(f => {
+      const fp = path.join(CONTENT_DIR, f);
+      return { path: fp, mtime: fs.statSync(fp).mtime.getTime() };
+    })
+    .sort((a, b) => b.mtime - a.mtime);
+  return files.length > 0 ? files[0].path : null;
+}
+
+// ========== HTTP Request Handler ==========
+
+function handleRequest(req, res) {
+  touchActivity();
+  if (req.method === 'GET' && req.url === '/') {
+    const screenFile = getNewestScreen();
+    let html = screenFile
+      ? (raw => isFullDocument(raw) ? raw : wrapInFrame(raw))(fs.readFileSync(screenFile, 'utf-8'))
+      : WAITING_PAGE;
+
+    if (html.includes('</body>')) {
+      html = html.replace('</body>', helperInjection + '\n</body>');
+    } else {
+      html += helperInjection;
+    }
+
+    res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' });
+    res.end(html);
+  } else if (req.method === 'GET' && req.url.startsWith('/files/')) {
+    const fileName = req.url.slice(7);
+    const filePath = path.join(CONTENT_DIR, path.basename(fileName));
+    if (!fs.existsSync(filePath)) {
+      res.writeHead(404);
+      res.end('Not found');
+      return;
+    }
+    const ext = path.extname(filePath).toLowerCase();
+    const contentType = MIME_TYPES[ext] || 'application/octet-stream';
+    res.writeHead(200, { 'Content-Type': contentType });
+    res.end(fs.readFileSync(filePath));
+  } else {
+    res.writeHead(404);
+    res.end('Not found');
+  }
+}
+
+// ========== WebSocket Connection Handling ==========
+
+const clients = new Set();
+
+function handleUpgrade(req, socket) {
+  const key = req.headers['sec-websocket-key'];
+  if (!key) { socket.destroy(); return; }
+
+  const accept = computeAcceptKey(key);
+  socket.write(
+    'HTTP/1.1 101 Switching Protocols\r\n' +
+    'Upgrade: websocket\r\n' +
+    'Connection: Upgrade\r\n' +
+    'Sec-WebSocket-Accept: ' + accept + '\r\n\r\n'
+  );
+
+  let buffer = Buffer.alloc(0);
+  clients.add(socket);
+
+  socket.on('data', (chunk) => {
+    buffer = Buffer.concat([buffer, chunk]);
+    while (buffer.length > 0) {
+      let result;
+      try {
+        result = decodeFrame(buffer);
+      } catch (e) {
+        socket.end(encodeFrame(OPCODES.CLOSE, Buffer.alloc(0)));
+        clients.delete(socket);
+        return;
+      }
+      if (!result) break;
+      buffer = buffer.slice(result.bytesConsumed);
+
+      switch (result.opcode) {
+        case OPCODES.TEXT:
+          handleMessage(result.payload.toString());
+          break;
+        case OPCODES.CLOSE:
+          socket.end(encodeFrame(OPCODES.CLOSE, Buffer.alloc(0)));
+          clients.delete(socket);
+          return;
+        case OPCODES.PING:
+          socket.write(encodeFrame(OPCODES.PONG, result.payload));
+          break;
+        case OPCODES.PONG:
+          break;
+        default: {
+          const closeBuf = Buffer.alloc(2);
+          closeBuf.writeUInt16BE(1003);
+          socket.end(encodeFrame(OPCODES.CLOSE, closeBuf));
+          clients.delete(socket);
+          return;
+        }
+      }
+    }
+  });
+
+  socket.on('close', () => clients.delete(socket));
+  socket.on('error', () => clients.delete(socket));
+}
+
+function handleMessage(text) {
+  let event;
+  try {
+    event = JSON.parse(text);
+  } catch (e) {
+    console.error('Failed to parse WebSocket message:', e.message);
+    return;
+  }
+  touchActivity();
+  console.log(JSON.stringify({ source: 'user-event', ...event }));
+  if (event.choice) {
+    const eventsFile = path.join(STATE_DIR, 'events');
+    fs.appendFileSync(eventsFile, JSON.stringify(event) + '\n');
+  }
+}
+
+function broadcast(msg) {
+  const frame = encodeFrame(OPCODES.TEXT, Buffer.from(JSON.stringify(msg)));
+  for (const socket of clients) {
+    try { socket.write(frame); } catch (e) { clients.delete(socket); }
+  }
+}
+
+// ========== Activity Tracking ==========
+
+const IDLE_TIMEOUT_MS = 30 * 60 * 1000; // 30 minutes
+let lastActivity = Date.now();
+
+function touchActivity() {
+  lastActivity = Date.now();
+}
+
+// ========== File Watching ==========
+
+const debounceTimers = new Map();
+
+// ========== Server Startup ==========
+
+function startServer() {
+  if (!fs.existsSync(CONTENT_DIR)) fs.mkdirSync(CONTENT_DIR, { recursive: true });
+  if (!fs.existsSync(STATE_DIR)) fs.mkdirSync(STATE_DIR, { recursive: true });
+
+  // Track known files to distinguish new screens from updates.
+  // macOS fs.watch reports 'rename' for both new files and overwrites,
+  // so we can't rely on eventType alone.
+  const knownFiles = new Set(
+    fs.readdirSync(CONTENT_DIR).filter(f => f.endsWith('.html'))
+  );
+
+  const server = http.createServer(handleRequest);
+  server.on('upgrade', handleUpgrade);
+
+  const watcher = fs.watch(CONTENT_DIR, (eventType, filename) => {
+    if (!filename || !filename.endsWith('.html')) return;
+
+    if (debounceTimers.has(filename)) clearTimeout(debounceTimers.get(filename));
+    debounceTimers.set(filename, setTimeout(() => {
+      debounceTimers.delete(filename);
+      const filePath = path.join(CONTENT_DIR, filename);
+
+      if (!fs.existsSync(filePath)) return; // file was deleted
+      touchActivity();
+
+      if (!knownFiles.has(filename)) {
+        knownFiles.add(filename);
+        const eventsFile = path.join(STATE_DIR, 'events');
+        if (fs.existsSync(eventsFile)) fs.unlinkSync(eventsFile);
+        console.log(JSON.stringify({ type: 'screen-added', file: filePath }));
+      } else {
+        console.log(JSON.stringify({ type: 'screen-updated', file: filePath }));
+      }
+
+      broadcast({ type: 'reload' });
+    }, 100));
+  });
+  watcher.on('error', (err) => console.error('fs.watch error:', err.message));
+
+  function shutdown(reason) {
+    console.log(JSON.stringify({ type: 'server-stopped', reason }));
+    const infoFile = path.join(STATE_DIR, 'server-info');
+    if (fs.existsSync(infoFile)) fs.unlinkSync(infoFile);
+    fs.writeFileSync(
+      path.join(STATE_DIR, 'server-stopped'),
+      JSON.stringify({ reason, timestamp: Date.now() }) + '\n'
+    );
+    watcher.close();
+    clearInterval(lifecycleCheck);
+    server.close(() => process.exit(0));
+  }
+
+  function ownerAlive() {
+    if (!ownerPid) return true;
+    try { process.kill(ownerPid, 0); return true; } catch (e) { return e.code === 'EPERM'; }
+  }
+
+  // Check every 60s: exit if owner process died or idle for 30 minutes
+  const lifecycleCheck = setInterval(() => {
+    if (!ownerAlive()) shutdown('owner process exited');
+    else if (Date.now() - lastActivity > IDLE_TIMEOUT_MS) shutdown('idle timeout');
+  }, 60 * 1000);
+  lifecycleCheck.unref();
+
+  // Validate owner PID at startup. If it's already dead, the PID resolution
+  // was wrong (common on WSL, Tailscale SSH, and cross-user scenarios).
+  // Disable monitoring and rely on the idle timeout instead.
+  if (ownerPid) {
+    try { process.kill(ownerPid, 0); }
+    catch (e) {
+      if (e.code !== 'EPERM') {
+        console.log(JSON.stringify({ type: 'owner-pid-invalid', pid: ownerPid, reason: 'dead at startup' }));
+        ownerPid = null;
+      }
+    }
+  }
+
+  server.listen(PORT, HOST, () => {
+    const info = JSON.stringify({
+      type: 'server-started', port: Number(PORT), host: HOST,
+      url_host: URL_HOST, url: 'http://' + URL_HOST + ':' + PORT,
+      screen_dir: CONTENT_DIR, state_dir: STATE_DIR
+    });
+    console.log(info);
+    fs.writeFileSync(path.join(STATE_DIR, 'server-info'), info + '\n');
+  });
+}
+
+if (require.main === module) {
+  startServer();
+}
+
+module.exports = { computeAcceptKey, encodeFrame, decodeFrame, OPCODES };
--- a/.trae/skills/brainstorming/scripts/start-server.sh
+++ b/.trae/skills/brainstorming/scripts/start-server.sh
@@ -0,0 +1,148 @@
+#!/usr/bin/env bash
+# Start the brainstorm server and output connection info
+# Usage: start-server.sh [--project-dir <path>] [--host <bind-host>] [--url-host <display-host>] [--foreground] [--background]
+#
+# Starts server on a random high port, outputs JSON with URL.
+# Each session gets its own directory to avoid conflicts.
+#
+# Options:
+#   --project-dir <path>  Store session files under <path>/.superpowers/brainstorm/
+#                         instead of /tmp. Files persist after server stops.
+#   --host <bind-host>    Host/interface to bind (default: 127.0.0.1).
+#                         Use 0.0.0.0 in remote/containerized environments.
+#   --url-host <host>     Hostname shown in returned URL JSON.
+#   --foreground          Run server in the current terminal (no backgrounding).
+#   --background          Force background mode (overrides Codex auto-foreground).
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+# Parse arguments
+PROJECT_DIR=""
+FOREGROUND="false"
+FORCE_BACKGROUND="false"
+BIND_HOST="127.0.0.1"
+URL_HOST=""
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --project-dir)
+      PROJECT_DIR="$2"
+      shift 2
+      ;;
+    --host)
+      BIND_HOST="$2"
+      shift 2
+      ;;
+    --url-host)
+      URL_HOST="$2"
+      shift 2
+      ;;
+    --foreground|--no-daemon)
+      FOREGROUND="true"
+      shift
+      ;;
+    --background|--daemon)
+      FORCE_BACKGROUND="true"
+      shift
+      ;;
+    *)
+      echo "{\"error\": \"Unknown argument: $1\"}"
+      exit 1
+      ;;
+  esac
+done
+
+if [[ -z "$URL_HOST" ]]; then
+  if [[ "$BIND_HOST" == "127.0.0.1" || "$BIND_HOST" == "localhost" ]]; then
+    URL_HOST="localhost"
+  else
+    URL_HOST="$BIND_HOST"
+  fi
+fi
+
+# Some environments reap detached/background processes. Auto-foreground when detected.
+if [[ -n "${CODEX_CI:-}" && "$FOREGROUND" != "true" && "$FORCE_BACKGROUND" != "true" ]]; then
+  FOREGROUND="true"
+fi
+
+# Windows/Git Bash reaps nohup background processes. Auto-foreground when detected.
+if [[ "$FOREGROUND" != "true" && "$FORCE_BACKGROUND" != "true" ]]; then
+  case "${OSTYPE:-}" in
+    msys*|cygwin*|mingw*) FOREGROUND="true" ;;
+  esac
+  if [[ -n "${MSYSTEM:-}" ]]; then
+    FOREGROUND="true"
+  fi
+fi
+
+# Generate unique session directory
+SESSION_ID="$$-$(date +%s)"
+
+if [[ -n "$PROJECT_DIR" ]]; then
+  SESSION_DIR="${PROJECT_DIR}/.superpowers/brainstorm/${SESSION_ID}"
+else
+  SESSION_DIR="/tmp/brainstorm-${SESSION_ID}"
+fi
+
+STATE_DIR="${SESSION_DIR}/state"
+PID_FILE="${STATE_DIR}/server.pid"
+LOG_FILE="${STATE_DIR}/server.log"
+
+# Create fresh session directory with content and state peers
+mkdir -p "${SESSION_DIR}/content" "$STATE_DIR"
+
+# Kill any existing server
+if [[ -f "$PID_FILE" ]]; then
+  old_pid=$(cat "$PID_FILE")
+  kill "$old_pid" 2>/dev/null
+  rm -f "$PID_FILE"
+fi
+
+cd "$SCRIPT_DIR"
+
+# Resolve the harness PID (grandparent of this script).
+# $PPID is the ephemeral shell the harness spawned to run us — it dies
+# when this script exits. The harness itself is $PPID's parent.
+OWNER_PID="$(ps -o ppid= -p "$PPID" 2>/dev/null | tr -d ' ')"
+if [[ -z "$OWNER_PID" || "$OWNER_PID" == "1" ]]; then
+  OWNER_PID="$PPID"
+fi
+
+# Foreground mode for environments that reap detached/background processes.
+if [[ "$FOREGROUND" == "true" ]]; then
+  echo "$$" > "$PID_FILE"
+  env BRAINSTORM_DIR="$SESSION_DIR" BRAINSTORM_HOST="$BIND_HOST" BRAINSTORM_URL_HOST="$URL_HOST" BRAINSTORM_OWNER_PID="$OWNER_PID" node server.cjs
+  exit $?
+fi
+
+# Start server, capturing output to log file
+# Use nohup to survive shell exit; disown to remove from job table
+nohup env BRAINSTORM_DIR="$SESSION_DIR" BRAINSTORM_HOST="$BIND_HOST" BRAINSTORM_URL_HOST="$URL_HOST" BRAINSTORM_OWNER_PID="$OWNER_PID" node server.cjs > "$LOG_FILE" 2>&1 &
+SERVER_PID=$!
+disown "$SERVER_PID" 2>/dev/null
+echo "$SERVER_PID" > "$PID_FILE"
+
+# Wait for server-started message (check log file)
+for i in {1..50}; do
+  if grep -q "server-started" "$LOG_FILE" 2>/dev/null; then
+    # Verify server is still alive after a short window (catches process reapers)
+    alive="true"
+    for _ in {1..20}; do
+      if ! kill -0 "$SERVER_PID" 2>/dev/null; then
+        alive="false"
+        break
+      fi
+      sleep 0.1
+    done
+    if [[ "$alive" != "true" ]]; then
+      echo "{\"error\": \"Server started but was killed. Retry in a persistent terminal with: $SCRIPT_DIR/start-server.sh${PROJECT_DIR:+ --project-dir $PROJECT_DIR} --host $BIND_HOST --url-host $URL_HOST --foreground\"}"
+      exit 1
+    fi
+    grep "server-started" "$LOG_FILE" | head -1
+    exit 0
+  fi
+  sleep 0.1
+done
+
+# Timeout - server didn't start
+echo '{"error": "Server failed to start within 5 seconds"}'
+exit 1
--- a/.trae/skills/brainstorming/scripts/stop-server.sh
+++ b/.trae/skills/brainstorming/scripts/stop-server.sh
@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+# Stop the brainstorm server and clean up
+# Usage: stop-server.sh <session_dir>
+#
+# Kills the server process. Only deletes session directory if it's
+# under /tmp (ephemeral). Persistent directories (.superpowers/) are
+# kept so mockups can be reviewed later.
+
+SESSION_DIR="$1"
+
+if [[ -z "$SESSION_DIR" ]]; then
+  echo '{"error": "Usage: stop-server.sh <session_dir>"}'
+  exit 1
+fi
+
+STATE_DIR="${SESSION_DIR}/state"
+PID_FILE="${STATE_DIR}/server.pid"
+
+if [[ -f "$PID_FILE" ]]; then
+  pid=$(cat "$PID_FILE")
+
+  # Try to stop gracefully, fallback to force if still alive
+  kill "$pid" 2>/dev/null || true
+
+  # Wait for graceful shutdown (up to ~2s)
+  for i in {1..20}; do
+    if ! kill -0 "$pid" 2>/dev/null; then
+      break
+    fi
+    sleep 0.1
+  done
+
+  # If still running, escalate to SIGKILL
+  if kill -0 "$pid" 2>/dev/null; then
+    kill -9 "$pid" 2>/dev/null || true
+
+    # Give SIGKILL a moment to take effect
+    sleep 0.1
+  fi
+
+  if kill -0 "$pid" 2>/dev/null; then
+    echo '{"status": "failed", "error": "process still running"}'
+    exit 1
+  fi
+
+  rm -f "$PID_FILE" "${STATE_DIR}/server.log"
+
+  # Only delete ephemeral /tmp directories
+  if [[ "$SESSION_DIR" == /tmp/* ]]; then
+    rm -rf "$SESSION_DIR"
+  fi
+
+  echo '{"status": "stopped"}'
+else
+  echo '{"status": "not_running"}'
+fi