argszero · argszero · Aug 20, 2026 · Aug 20, 2026
diff --git a/emrg/gui/renderer/js/app.js b/emrg/gui/renderer/js/app.js
@@ -559,10 +559,17 @@ const App = (() => {
   function sessionProjectName(sid) {
     const os = state.openSessions.find((s) => s.sid === sid);
     if (os && os.projectName) return os.projectName;
+    // rant 17:48:07：回退用会话自身 cwd 末段（与历史列表一致），再 "home"
+    const cur = state.sessions.find((s) => s.session_id === sid);
+    if (cur && cur.cwd) {
+      const norm = String(cur.cwd).replace(/\\/g, "/").replace(/\/+$/, "");
+      const seg = norm.split("/");
+      if (seg[seg.length - 1]) return seg[seg.length - 1];
+    }
     return "home";
   }
 
-  // 会话视图顶部标题栏：项目/名称(id) 或 项目/id（有 title 时带 (id) 后缀）
+  // 会话视图顶部标题栏：统一 project/name|id（rant 2026-08-20T17:48:07）
   function renderSessionHeader(sid) {
     if (!sid) return;
     const view = [...$("workspace").children].find((c) => c.dataset?.sid === sid);
@@ -575,7 +582,7 @@ const App = (() => {
     const cur = state.sessions.find((s) => s.session_id === sid) || {};
     const project = sessionProjectName(sid);
     const title = cur.title && cur.title !== sid ? cur.title : "";
-    const text = title ? `${project}/${title}(${sid})` : `${project}/${sid}`;
+    const text = `${project}/${title}|${sid}`;
     header.textContent = text;
     header.title = text; // 悬停完整信息
   }

diff --git a/emrg/gui/renderer/js/i18n.js b/emrg/gui/renderer/js/i18n.js
@@ -317,10 +317,6 @@ const I18N = (() => {
       "chat.elapsed": "耗时 {s}",
       "chat.expand": "展开全文",
       "chat.toolGroupSummary": "{count} 个工具执行 · {time}",
-      // 时间分组（utils.js/sidebar.js）
-      "util.groupToday": "今天",
-      "util.groupYesterday": "昨天",
-      "util.groupEarlier": "更早",
       // 结果面板（result-panel.js）
       // Markdown 代码块（markdown.js）
       "md.copyCode": "复制代码",
@@ -410,7 +406,6 @@ const I18N = (() => {
       "app.closeSession": "❌ 关闭会话（保留数据）",
       "app.closeFailed": "关闭会话失败了：{msg}",
       "sidebar.openSessions": "打开的会话",
-      "sidebar.openSessionOf": "{project} / {title}",
       "app.noModels": "还没有配置模型",
       "app.goSettings": "去设置添加",
       "app.modelSwitchFailed": "切换模型失败了：{msg}",
@@ -727,10 +722,6 @@ const I18N = (() => {
       "chat.elapsed": "took {s}",
       "chat.expand": "Expand full text",
       "chat.toolGroupSummary": "{count} tool calls · {time}",
-      // Time groups (utils.js/sidebar.js)
-      "util.groupToday": "Today",
-      "util.groupYesterday": "Yesterday",
-      "util.groupEarlier": "Earlier",
       // Result panel (result-panel.js)
       // Markdown code block (markdown.js)
       "md.copyCode": "Copy code",
@@ -820,7 +811,6 @@ const I18N = (() => {
       "app.closeSession": "❌ Close session (keep data)",
       "app.closeFailed": "Failed to close session: {msg}",
       "sidebar.openSessions": "Open sessions",
-      "sidebar.openSessionOf": "{project} / {title}",
       "app.noModels": "No models configured",
       "app.goSettings": "Add in Settings",
       "app.modelSwitchFailed": "Failed to switch model: {msg}",

diff --git a/emrg/gui/renderer/js/sidebar.js b/emrg/gui/renderer/js/sidebar.js
@@ -27,10 +27,10 @@ const Sidebar = (() => {
     const known = (App.state && App.state.sessions) || [];
     for (const entry of openSessions) {
       const cur = known.find((s) => s.session_id === entry.sid) || {};
-      const title = entry.title || cur.title || entry.sid; // entry.title 优先（跨项目），再 cur.title（当前项目），最后 sid
+      const title = entry.title || cur.title || ""; // entry.title 优先（跨项目），再 cur.title；id 单独显示，不降级为 sid
       const item = el("div", { class: "conv-item open-session-item" });
       item.dataset.sid = entry.sid;
-      item.appendChild(el("span", { class: "conv-title" }, _t("sidebar.openSessionOf", { project: entry.projectName || "", title })));
+      item.appendChild(el("span", { class: "conv-title" }, sessionLabel(entry.projectName || "", title, entry.sid)));
       item.addEventListener("click", () => App.switchSession(entry.sid));
       item.addEventListener("contextmenu", (e) => {
         e.preventDefault();
@@ -41,7 +41,20 @@ const Sidebar = (() => {
     highlight(App.state.sessionId);
   }
 
-  /** 渲染分组对话列表 */
+  /** 会话条目统一格式 project/name|id（rant 2026-08-20T17:48:07 三处统一） */
+  function sessionLabel(project, title, sid) {
+    return `${project}/${title}|${sid}`;
+  }
+
+  /** cwd 末段作项目名（Path(s.cwd).name 语义，兼容 \\ 与 /） */
+  function cwdProjectName(cwd) {
+    if (!cwd) return "";
+    const norm = String(cwd).replace(/\\/g, "/").replace(/\/+$/, "");
+    const seg = norm.split("/");
+    return seg[seg.length - 1] || "";
+  }
+
+  /** 渲染会话列表（rant 17:48:07：去掉今天/昨天/更早分组，按最后活跃倒序，project/name|id） */
   function render(list) {
     sessions = list || [];
     const nav = $("conv-list");
@@ -50,32 +63,21 @@ const Sidebar = (() => {
       nav.appendChild(el("div", { class: "conv-item placeholder" }, EMRG_Copy.COPY.noSessions));
       return;
     }
-    // rant 21:19：分组标签本地化（顺序保持 今天→昨天→更早 不变）
-    const groups = {};
-    for (const lbl of [_t("util.groupToday"), _t("util.groupYesterday"), _t("util.groupEarlier")]) {
-      groups[lbl] = [];
-    }
-    for (const s of sessions) {
-      const g = groupLabel(s.updated_at || s.created_at);
-      if (!groups[g]) groups[g] = [];
-      groups[g].push(s);
-    }
-    for (const [label, items] of Object.entries(groups)) {
-      if (!items.length) continue;
-      nav.appendChild(el("div", { class: "conv-group-label" }, label));
-      for (const s of items) {
-        const item = el("div", { class: "conv-item" });
-        item.dataset.sid = s.session_id;
-        const title = s.title || s.session_id; // G27：title 优先
-        item.appendChild(el("span", { class: "conv-title" }, title));
-        item.addEventListener("click", () => App.switchSession(s.session_id));
-        // 右键菜单：重命名 / 删除（友好确认）
-        item.addEventListener("contextmenu", (e) => {
-          e.preventDefault();
-          App.showConvMenu(item, s.session_id, title);
-        });
-        nav.appendChild(item);
-      }
+    const sorted = [...sessions].sort((a, b) =>
+      String(b.updated_at || b.created_at || "").localeCompare(String(a.updated_at || a.created_at || "")));
+    for (const s of sorted) {
+      const item = el("div", { class: "conv-item" });
+      item.dataset.sid = s.session_id;
+      const title = s.title || ""; // G27：title 优先，无 title 则空（id 已单独显示）
+      const project = cwdProjectName(s.cwd);
+      item.appendChild(el("span", { class: "conv-title" }, sessionLabel(project, title, s.session_id)));
+      item.addEventListener("click", () => App.switchSession(s.session_id));
+      // 右键菜单：重命名 / 删除（友好确认）
+      item.addEventListener("contextmenu", (e) => {
+        e.preventDefault();
+        App.showConvMenu(item, s.session_id, title || s.session_id);
+      });
+      nav.appendChild(item);
     }
     highlight(App.state.sessionId);
   }

diff --git a/emrg/gui/renderer/js/utils.js b/emrg/gui/renderer/js/utils.js
@@ -42,19 +42,6 @@ function genRequestId() {
   });
 }
 
-/** 会话时间分组：今天 / 昨天 / 更早 */
-function groupLabel(ts) {
-  if (!ts) return _t("util.groupEarlier");
-  const d = new Date(ts);
-  if (Number.isNaN(d.getTime())) return _t("util.groupEarlier");
-  const now = new Date();
-  const startOfDay = (x) => new Date(x.getFullYear(), x.getMonth(), x.getDate()).getTime();
-  const dayDiff = Math.round((startOfDay(now) - startOfDay(d)) / 86400000);
-  if (dayDiff <= 0) return _t("util.groupToday");
-  if (dayDiff === 1) return _t("util.groupYesterday");
-  return _t("util.groupEarlier");
-}
-
 /** rant 21:19：i18n 取词（i18n.js 缺失时回退 key 本身） */
 function _t(key, params) {
   try {
@@ -116,7 +103,6 @@ window.$ = $;
 window.el = el;
 window.escapeHtml = escapeHtml;
 window.genRequestId = genRequestId;
-window.groupLabel = groupLabel;
 window.applyTheme = applyTheme;
 window.relTime = relTime;
 window.showToast = showToast;
diff --git a/emrg/gui/test/i18n.test.js b/emrg/gui/test/i18n.test.js
@@ -145,15 +145,6 @@ test("Stage2：动态文案键（app/chat/dlg/panel）双语齐全", () => {
   assert.strictEqual(evalIn(zh, 'I18N.t("dlg.deleteModelBody", { name: "gpt-4o" })'), "「gpt-4o」将从可用模型里移除。");
 });
 
-test("Stage2：时间分组标签本地化（util.group*）", () => {
-  const { ctx } = makeSandbox({ navigator: { language: "en-US" } });
-  assert.strictEqual(evalIn(ctx, 'I18N.t("util.groupToday")'), "Today");
-  assert.strictEqual(evalIn(ctx, 'I18N.t("util.groupYesterday")'), "Yesterday");
-  assert.strictEqual(evalIn(ctx, 'I18N.t("util.groupEarlier")'), "Earlier");
-  const { ctx: zh } = makeSandbox({ navigator: { language: "zh-CN" } });
-  assert.strictEqual(evalIn(zh, 'I18N.t("util.groupToday")'), "今天");
-});
-
 test("Stage2：成长卡/关于区静态文案键（#501 吸收）", () => {
   const { ctx } = makeSandbox({ navigator: { language: "en-US" } });
   assert.strictEqual(evalIn(ctx, 'I18N.t("copy.growthCountPrefix")'), "Self-evolved");

diff --git a/emrg/gui/test/renderer.smoke.test.js b/emrg/gui/test/renderer.smoke.test.js
@@ -296,9 +296,9 @@ test("boot：config 就绪 → 加载会话列表", async () => {
     switchSession: async () => ({}),
   });
   await tick();
-  // conv-list 应有分组标签 + 会话项
+  // conv-list 应有会话项（rant 17:48:07：无分组标签，直接 project/name|id）
   const items = vm.runInContext('document.getElementById("conv-list").children.length', ctx);
-  assert.ok(items >= 2, `conv-list 应有分组标签+会话项，实际 ${items}`);
+  assert.ok(items >= 1, `conv-list 应有会话项，实际 ${items}`);
 });
 
 test("流式 delta 追加 + 工具行 running→done 状态流转", async () => {
@@ -1941,15 +1941,15 @@ test("P4 s2: open_sessions 事件 → 渲染打开会话区（项目名/标题 +
   assert.strictEqual(els["open-sessions-label"].hidden, true, "label hidden when no open sessions");
 });
 
-test("P4 s2: 跨项目打开会话（entry.title 优先，state.sessions 无该 sid）→ 显示 entry.title 而非 sid", async () => {
+test("P4 s2: 跨项目打开会话（entry.title 优先，state.sessions 无该 sid）→ 统一 project/name|id 格式", async () => {
   const { ctx, els } = makeSandbox({});
   await tick();
   await vm.runInContext(
     'App.state.sessionId = "sess-x";' +
     'App.state.sessions = [{ session_id: "sess-local", title: "Local" }];' + // 当前项目会话；无 sess-x / sess-other
     'App.handleEvent({ type: "open_sessions", data: { openSessions: [' + // main 已按 lastActive 倒序
     '  { sid: "sess-x", projectName: "evolution", projectPath: "/p/evolution", lastActive: "t3", title: "Evolution Task" },' + // 跨项目 + title
-    '  { sid: "sess-other", projectName: "mem", projectPath: "/p/mem", lastActive: "t2" },' + // 跨项目无 title → sid 兜底
+    '  { sid: "sess-other", projectName: "mem", projectPath: "/p/mem", lastActive: "t2" },' + // 跨项目无 title → 空 name
     '  { sid: "sess-local", projectName: "emrg", projectPath: "/p/emrg", lastActive: "t1" }' + // 当前项目 → state.sessions title
     '] } });',
     ctx
@@ -1958,11 +1958,12 @@ test("P4 s2: 跨项目打开会话（entry.title 优先，state.sessions 无该
   assert.strictEqual(nav.children.length, 3, "three open-session items rendered");
   const t0 = nav.children[0].children[0] || nav.children[0];
   assert.ok((t0.textContent || "").includes("Evolution Task"), "cross-project entry shows entry.title");
-  assert.ok(!(t0.textContent || "").includes("sess-x"), "does NOT fall back to sid when entry.title present");
+  assert.ok((t0.textContent || "").includes("sess-x"), "id 单独显示（project/name|id）");
   const t1 = nav.children[1].children[0] || nav.children[1];
-  assert.ok((t1.textContent || "").includes("sess-other"), "cross-project no title + not in state.sessions → sid fallback");
+  assert.ok((t1.textContent || "").includes("sess-other"), "cross-project no title → id 兜底显示");
   const t2 = nav.children[2].children[0] || nav.children[2];
   assert.ok((t2.textContent || "").includes("Local"), "current-project entry still resolves via state.sessions title");
+  assert.ok((t2.textContent || "").includes("sess-local"), "当前项目条目同样带 id（project/name|id）");
 });
 
 test("P4 s2: closeOpenSession 关闭激活会话 → 切到剩余打开会话 + 容器释放", async () => {