發佈 0.1.7：新增會話模式開關（獨立／共用）

摘要：
bot 設定新增「會話模式」：預設各聊天室獨立會話；可切為所有聊天室
共用一條記憶（單一專案助理情境）。共用模式下 /new 清除全部記憶，
/status 會顯示目前模式，bot 列表小字標示「共用會話」。

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

package.json

@@ -1,6 +1,6 @@
 {
   "name": "telegram-codex-bot",
-  "version": "0.1.5",
+  "version": "0.1.7",
   "description": "Telegram bot powered by the local Codex CLI — zero-dependency, pm2-managed, with a built-in PM2 web viewer",
   "license": "MIT",
   "type": "commonjs",

src/bot.js

@@ -32,7 +32,7 @@ function loadCodexDefaults() {
   }
 }
 
-// — ✅ 16:06:32 | ctx 24% +1.2k | gpt-5.6-sol / high / Fast
+// — ✅ 16:06:32 | ctx 24% +1.2k | gpt-5.6-sol / high
 function buildFooter(config, usage, modelMeta, codexDefaults) {
   const time = new Date().toLocaleTimeString('zh-TW', { hour12: false });
   const parts = [`— ✅ ${time}`];
@@ -50,12 +50,7 @@ function buildFooter(config, usage, modelMeta, codexDefaults) {
 
   if (model) {
     const effort = config.reasoningEffort || codexDefaults.effort || meta?.default_reasoning_level || '';
-    const tier = config.serviceTier || codexDefaults.tier || '';
-    // 顯示速度層級的名稱（priority → Fast），對照模型快取
-    const tierName = tier
-      ? (meta?.service_tiers?.find((t) => t.id === tier)?.name || tier)
-      : '';
-    parts.push([model, effort, tierName].filter(Boolean).join(' / '));
+    parts.push(effort ? `${model} / ${effort}` : model);
   }
   return `\n\n${parts.join(' | ')}`;
 }
@@ -141,14 +136,14 @@ function startBot(config) {
   }
 
   function statusText(chatId) {
-    const s = sessions.get(chatId);
+    const s = sessions.get(sessionKeyOf(chatId));
     return [
       '📋 目前狀態',
       `工作目錄：${config.workDir}`,
       `沙盒模式：${config.sandbox}`,
       `模型：${config.model || '（codex 預設）'}`,
       `推理強度：${config.reasoningEffort || '（預設）'}`,
-      `速度：${config.serviceTier || '（預設）'}`,
+      `會話模式：${config.sharedSession ? '所有聊天室共用' : '各聊天室獨立'}`,
       s ? `會話：${s.threadId}\n最後使用：${s.updatedAt}` : '會話：尚未建立（下一則訊息會開新會話）',
     ].join('\n');
   }
@@ -164,9 +159,15 @@ function startBot(config) {
     '群組中要 @我 或回覆我的訊息才會觸發。可以直接傳圖片（附文字說明）。',
   ].join('\n');
 
+  // 會話 key：獨立模式用 chat id，共用模式所有聊天室用同一把
+  function sessionKeyOf(chatId) {
+    return config.sharedSession ? 'shared' : chatId;
+  }
+
   async function handleMessage(message) {
     if (!message || message.from?.id === botId) return;
     const chatId = message.chat.id;
+    const sessionKey = sessionKeyOf(chatId);
     const text = message.text || message.caption || '';
     const photo = pickPhoto(message);
     if (!text && !photo) return;
@@ -179,8 +180,14 @@ function startBot(config) {
       return;
     }
     if (matchCommand(content, NEW_COMMANDS)) {
-      sessions.clear(chatId);
-      await t.sendMessage(chatId, '🆕 已開新會話，之前的對話記憶已清除。', { replyTo: message.message_id });
+      sessions.clear(sessionKey);
+      await t.sendMessage(
+        chatId,
+        config.sharedSession
+          ? '🆕 已開新會話（此 bot 為共用會話模式，所有聊天室的記憶一併清除）。'
+          : '🆕 已開新會話，之前的對話記憶已清除。',
+        { replyTo: message.message_id }
+      );
       return;
     }
     if (matchCommand(content, STATUS_COMMANDS)) {
@@ -221,7 +228,7 @@ function startBot(config) {
       }
 
       const prompt = buildPrompt(message, content || '（使用者只傳了圖片，請描述並依上下文處理）');
-      const existing = sessions.get(chatId);
+      const existing = sessions.get(sessionKey);
 
       let result;
       let sessionResetNote = '';
@@ -234,7 +241,7 @@ function startBot(config) {
         const sessionGone = /session|thread|conversation/i.test(err.message) && /not.*found|找不到|no .*(session|thread)/i.test(err.message);
         const modelMismatch = /recorded with model/i.test(err.message);
         if (existing && (sessionGone || modelMismatch)) {
-          sessions.clear(chatId);
+          sessions.clear(sessionKey);
           result = await runCodex({ config, prompt, threadId: null, images, onProgress });
           sessionResetNote = modelMismatch
             ? '🆕 模型設定已變更，舊會話無法沿用，已自動開新會話（先前的對話記憶未帶入）。\n\n'
@@ -244,7 +251,7 @@ function startBot(config) {
         }
       }
 
-      if (result.threadId) sessions.set(chatId, result.threadId);
+      if (result.threadId) sessions.set(sessionKey, result.threadId);
 
       const footer = buildFooter(config, result.usage, modelMeta, codexDefaults);
       const html = t.mdToTgHtml(sessionResetNote + (result.text || '（Codex 沒有回覆文字）') + footer);

src/config.js

@@ -18,8 +18,10 @@ const DEFAULTS = {
   model: '',
   // 推理強度（low/medium/high/xhigh/max/ultra…依模型而定）；空字串 = codex 預設
   reasoningEffort: '',
-  // 速度（service tier，如 priority = Fast 1.5x）；空字串 = codex 預設
-  serviceTier: '',
+  // 速度固定 Fast（priority = 1.5x）；要改只能手動編輯設定檔
+  serviceTier: 'priority',
+  // 會話模式：false = 每個聊天室獨立會話（預設）；true = 所有聊天室共用一個會話
+  sharedSession: false,
   // 單次回應逾時（分鐘）
   timeoutMinutes: 30,
   // pm2 程序名稱（web 檢視工具會叫 <pm2Name>-web）
@@ -80,6 +82,9 @@ function loadConfig(explicitPath) {
     }
     cfg.web.port = port;
   }
+  // 速度政策固定 Fast：舊設定檔存了空值也矯正回 priority
+  if (!cfg.serviceTier) cfg.serviceTier = 'priority';
+
   const minutes = Number(cfg.timeoutMinutes);
   if (!(minutes > 0)) throw new Error(`timeoutMinutes 必須是正數：${cfg.timeoutMinutes}`);
   cfg.timeoutMinutes = minutes;

src/registry.js

@@ -78,6 +78,7 @@ async function listBots() {
       sandbox: cfg?.sandbox || null,
       model: cfg?.model || '',
       reasoningEffort: cfg?.reasoningEffort || '',
+      sharedSession: !!cfg?.sharedSession,
       serviceTier: cfg?.serviceTier || '',
       timeoutMinutes: cfg?.timeoutMinutes || null,
       tokenMasked: maskToken(cfg?.telegramToken),
@@ -112,7 +113,7 @@ function validateBotInput({ name, token, workDir, sandbox }, { isCreate }) {
   }
 }
 
-async function createBot({ name, token, workDir, sandbox, model, reasoningEffort, serviceTier, timeoutMinutes }) {
+async function createBot({ name, token, workDir, sandbox, model, reasoningEffort, sharedSession, timeoutMinutes }) {
   validateBotInput({ name, token, workDir, sandbox }, { isCreate: true });
   const reg = loadRegistry();
   if (reg.bots[name]) throw new Error(`已有同名 bot：${name}`);
@@ -128,7 +129,8 @@ async function createBot({ name, token, workDir, sandbox, model, reasoningEffort
     sandbox: sandbox || 'workspace-write',
     model: model || '',
     reasoningEffort: reasoningEffort || '',
-    serviceTier: serviceTier || '',
+    sharedSession: !!sharedSession,
+    serviceTier: 'priority', // 速度固定 Fast 1.5x
     timeoutMinutes: Number(timeoutMinutes) || 30,
     pm2Name: name,
     // UI 建的 bot 不各自開 web，統一由控制台管理
@@ -158,7 +160,7 @@ async function updateBot(name, patch) {
   }
   if (patch.model !== undefined) raw.model = patch.model;
   if (patch.reasoningEffort !== undefined) raw.reasoningEffort = patch.reasoningEffort;
-  if (patch.serviceTier !== undefined) raw.serviceTier = patch.serviceTier;
+  if (patch.sharedSession !== undefined) raw.sharedSession = !!patch.sharedSession;
   if (patch.timeoutMinutes !== undefined && Number(patch.timeoutMinutes) > 0) {
     raw.timeoutMinutes = Number(patch.timeoutMinutes);
   }

src/web/public/index.html

@@ -217,10 +217,15 @@
     <div class="field">
       <label>推理強度</label>
       <select id="f-effort"></select>
+      <div class="hint">速度固定為 Fast（1.5x）</div>
     </div>
     <div class="field">
-      <label>速度</label>
-      <select id="f-tier"></select>
+      <label>會話模式</label>
+      <select id="f-session">
+        <option value="per-chat" selected>各聊天室獨立（私訊、每個群組各自記憶）</option>
+        <option value="shared">所有聊天室共用（同一條記憶，適合單一專案助理）</option>
+      </select>
+      <div class="hint">共用模式下 /new 會清掉所有聊天室的記憶</div>
     </div>
     <div class="field">
       <label>逾時（分鐘）</label>
@@ -314,7 +319,7 @@ async function loadModels() {
   } catch { modelsCache = []; }
 }
 // 下拉沒有「預設」空選項：直接把真實預設值選起來
-function populateModelSelects(selModel, selEffort, selTier) {
+function populateModelSelects(selModel, selEffort) {
   const mSel = document.getElementById('f-model');
   let opts = modelsCache.map(m => '<option value="' + esc(m.slug) + '">' + esc(m.label) + '</option>').join('');
   // 設定檔裡有但快取沒有的模型（手填過的）也要能顯示
@@ -326,9 +331,9 @@ function populateModelSelects(selModel, selEffort, selTier) {
   const wanted = selModel || modelDefaults.model;
   mSel.value = wanted;
   if (mSel.value !== wanted || !mSel.value) mSel.selectedIndex = 0;
-  syncEffortTier(selEffort, selTier);
+  syncEffortTier(selEffort);
 }
-function syncEffortTier(selEffort, selTier) {
+function syncEffortTier(selEffort) {
   const slug = document.getElementById('f-model').value;
   const m = modelsCache.find(x => x.slug === slug);
   let efforts = m ? m.efforts.slice() : ['low', 'medium', 'high', 'xhigh', 'max'];
@@ -341,22 +346,6 @@ function syncEffortTier(selEffort, selTier) {
     : efforts.includes(modelDefaults.effort) ? modelDefaults.effort
     : (m && efforts.includes(m.defaultEffort)) ? m.defaultEffort
     : efforts[0];
-
-  const tiers = m ? m.tiers.slice() : [];
-  const tSel = document.getElementById('f-tier');
-  const prevT = (selTier !== undefined && selTier !== '') ? selTier : tSel.value;
-  if (!tiers.length) {
-    tSel.innerHTML = '<option value="">標準</option>';
-    tSel.value = '';
-  } else {
-    // 模型快取只列「額外」的速度層級，補一個標準選項在前面
-    tSel.innerHTML = '<option value="">標準</option>' +
-      tiers.map(t => '<option value="' + esc(t.id) + '">' + esc(t.name) + (t.description ? '（' + esc(t.description) + '）' : '') + '</option>').join('');
-    tSel.value = tiers.some(t => t.id === prevT) ? prevT
-      : tiers.some(t => t.id === modelDefaults.tier) ? modelDefaults.tier
-      : tiers.some(t => t.id === (m && m.defaultTier)) ? m.defaultTier
-      : '';
-  }
 }
 
 // ---------- Bot 管理 ----------
@@ -393,8 +382,8 @@ function renderBots(bots) {
       '<td>' + statusBadge(b.status) + '</td>' +
       '<td><span class="mono" title="' + esc(b.workDir) + '">' + esc(shortPath(b.workDir)) + '</span></td>' +
       '<td class="mono">' + esc(b.sandbox || '-') +
-        ((b.model || b.reasoningEffort || b.serviceTier)
-          ? '<br><span class="script-name">' + esc([b.model, b.reasoningEffort, b.serviceTier].filter(Boolean).join(' / ')) + '</span>'
+        ((b.model || b.reasoningEffort || b.sharedSession)
+          ? '<br><span class="script-name">' + esc([b.model, b.reasoningEffort, b.sharedSession ? '共用會話' : ''].filter(Boolean).join(' / ')) + '</span>'
           : '') + '</td>' +
       '<td class="mono">' + esc(b.tokenMasked || '-') + '</td>' +
       '<td>' + fmtBytes(b.memory) + '</td>' +
@@ -462,7 +451,8 @@ function openCreate() {
   document.getElementById('f-token-hint').textContent = '跟 @BotFather 申請；儲存時會自動驗證';
   document.getElementById('f-workdir').value = '';
   document.getElementById('f-sandbox').value = 'workspace-write';
-  populateModelSelects('', '', '');
+  populateModelSelects('', '');
+  document.getElementById('f-session').value = 'per-chat';
   document.getElementById('f-timeout').value = '30';
   document.getElementById('f-autostart-wrap').style.display = '';
   document.getElementById('f-autostart').checked = true;
@@ -483,7 +473,8 @@ function openEdit(name) {
   document.getElementById('f-token-hint').textContent = '留空表示沿用現有 token';
   document.getElementById('f-workdir').value = b.workDir || '';
   document.getElementById('f-sandbox').value = b.sandbox || 'workspace-write';
-  populateModelSelects(b.model || '', b.reasoningEffort || '', b.serviceTier || '');
+  populateModelSelects(b.model || '', b.reasoningEffort || '');
+  document.getElementById('f-session').value = b.sharedSession ? 'shared' : 'per-chat';
   document.getElementById('f-timeout').value = b.timeoutMinutes || 30;
   document.getElementById('f-autostart-wrap').style.display = 'none';
   document.getElementById('bot-modal').classList.add('show');
@@ -504,7 +495,7 @@ async function saveBot() {
     sandbox: document.getElementById('f-sandbox').value,
     model: document.getElementById('f-model').value,
     reasoningEffort: document.getElementById('f-effort').value,
-    serviceTier: document.getElementById('f-tier').value,
+    sharedSession: document.getElementById('f-session').value === 'shared',
     timeoutMinutes: document.getElementById('f-timeout').value,
   };
   try {