fix(webui): sort sessions by transcript activity

nanobot/webui/session_list_index.py

@@ -9,11 +9,13 @@ from __future__ import annotations
 
 import json
 import os
+from datetime import datetime
 from pathlib import Path
 from typing import Any
 
 from loguru import logger
 
+from nanobot.config.paths import get_webui_dir
 from nanobot.cron.session_turns import CRON_HISTORY_META
 from nanobot.session.manager import (
     _SESSION_LIST_PREVIEW_MAX_CHARS,
@@ -26,6 +28,8 @@ from nanobot.session.manager import (
 
 _INDEX_VERSION = 1
 _INDEX_FILENAME = ".webui_session_index.json"
+_WEBUI_ACTIVITY_MTIME_NS = "webui_activity_mtime_ns"
+_WEBUI_ACTIVITY_SIZE = "webui_activity_size"
 
 
 def list_webui_sessions(session_manager: SessionManager) -> list[dict[str, Any]]:
@@ -117,7 +121,13 @@ def _indexed_row_matches_file(row: dict[str, Any], path: Path) -> bool:
         signature = _file_signature(path)
     except OSError:
         return False
-    return row.get("mtime_ns") == signature["mtime_ns"] and row.get("size") == signature["size"]
+    activity_signature = _webui_activity_signature(str(row.get("key")))
+    return (
+        row.get("mtime_ns") == signature["mtime_ns"]
+        and row.get("size") == signature["size"]
+        and row.get(_WEBUI_ACTIVITY_MTIME_NS) == activity_signature[_WEBUI_ACTIVITY_MTIME_NS]
+        and row.get(_WEBUI_ACTIVITY_SIZE) == activity_signature[_WEBUI_ACTIVITY_SIZE]
+    )
 
 
 def _public_row(sessions_dir: Path, row: dict[str, Any]) -> dict[str, Any]:
@@ -155,17 +165,69 @@ def _preview_from_messages(messages: list[dict[str, Any]]) -> str:
     return fallback_preview
 
 
+def _webui_activity_paths(session_key: str) -> list[Path]:
+    stem = SessionManager.safe_key(session_key)
+    webui_dir = get_webui_dir()
+    return [
+        webui_dir / f"{stem}.jsonl",
+        webui_dir / f"{stem}.json",
+    ]
+
+
+def _webui_activity_signature(session_key: str) -> dict[str, int]:
+    latest_mtime_ns = 0
+    total_size = 0
+    for path in _webui_activity_paths(session_key):
+        try:
+            stat = path.stat()
+        except OSError:
+            continue
+        if not path.is_file():
+            continue
+        latest_mtime_ns = max(latest_mtime_ns, stat.st_mtime_ns)
+        total_size += stat.st_size
+    return {
+        _WEBUI_ACTIVITY_MTIME_NS: latest_mtime_ns,
+        _WEBUI_ACTIVITY_SIZE: total_size,
+    }
+
+
+def _webui_activity_updated_at(signature: dict[str, int]) -> str | None:
+    mtime_ns = signature.get(_WEBUI_ACTIVITY_MTIME_NS, 0)
+    if mtime_ns <= 0:
+        return None
+    return datetime.fromtimestamp(mtime_ns / 1_000_000_000).isoformat()
+
+
+def _timestamp(value: str | None) -> float:
+    if not value:
+        return 0.0
+    try:
+        return datetime.fromisoformat(value).timestamp()
+    except ValueError:
+        return 0.0
+
+
+def _latest_updated_at(stored: str | None, activity: str | None) -> str | None:
+    if _timestamp(activity) > _timestamp(stored):
+        return activity
+    return stored
+
+
 def _indexed_row_for_session(session: Session, path: Path) -> dict[str, Any]:
     signature = _file_signature(path)
+    activity_signature = _webui_activity_signature(session.key)
+    activity_updated_at = _webui_activity_updated_at(activity_signature)
     return {
         "key": session.key,
         "created_at": session.created_at.isoformat(),
-        "updated_at": session.updated_at.isoformat(),
+        "updated_at": _latest_updated_at(session.updated_at.isoformat(), activity_updated_at),
         "title": _metadata_title(session.metadata),
         "preview": _preview_from_messages(session.messages),
         "file": path.name,
         "mtime_ns": signature["mtime_ns"],
         "size": signature["size"],
+        **activity_signature,
     }
 
 
@@ -207,15 +269,19 @@ def _scan_session_row(session_manager: SessionManager, path: Path) -> dict[str,
                 if not fallback_preview and item.get("role") == "assistant":
                     fallback_preview = text
             signature = _file_signature(path)
+            key = data.get("key") or fallback_key
+            activity_signature = _webui_activity_signature(key)
+            activity_updated_at = _webui_activity_updated_at(activity_signature)
             return {
-                "key": data.get("key") or fallback_key,
+                "key": key,
                 "created_at": data.get("created_at"),
-                "updated_at": data.get("updated_at"),
+                "updated_at": _latest_updated_at(data.get("updated_at"), activity_updated_at),
                 "title": _metadata_title(data.get("metadata", {})),
                 "preview": preview or fallback_preview,
                 "file": path.name,
                 "mtime_ns": signature["mtime_ns"],
                 "size": signature["size"],
+                **activity_signature,
             }
     except Exception:
         repaired = session_manager._repair(fallback_key)

tests/webui/test_session_list_index.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import os
+from datetime import datetime
 from pathlib import Path
 
 import nanobot.webui.session_list_index as session_list_index
@@ -86,5 +88,86 @@ def test_webui_session_list_skips_cron_internal_user_preview(tmp_path: Path) ->
     assert list_webui_sessions(manager)[0]["preview"] == "提醒已经到期。"
 
 
+def test_webui_session_list_uses_webui_transcript_activity_for_sort(
+    tmp_path: Path,
+    monkeypatch,
+) -> None:
+    webui_dir = tmp_path / "webui"
+    webui_dir.mkdir()
+    monkeypatch.setattr(session_list_index, "get_webui_dir", lambda: webui_dir)
+
+    manager = SessionManager(tmp_path)
+    old_session = manager.get_or_create("websocket:old-metadata")
+    old_session.created_at = datetime(2026, 6, 15, 10, 0, 0)
+    old_session.updated_at = datetime(2026, 6, 15, 10, 0, 0)
+    old_session.add_message("user", "old metadata")
+    old_session.updated_at = datetime(2026, 6, 15, 10, 0, 0)
+    manager.save(old_session)
+
+    newer_metadata = manager.get_or_create("websocket:newer-metadata")
+    newer_metadata.created_at = datetime(2026, 6, 15, 11, 0, 0)
+    newer_metadata.updated_at = datetime(2026, 6, 15, 11, 0, 0)
+    newer_metadata.add_message("user", "newer metadata")
+    newer_metadata.updated_at = datetime(2026, 6, 15, 11, 0, 0)
+    manager.save(newer_metadata)
+
+    transcript = webui_dir / "websocket_old-metadata.jsonl"
+    transcript.write_text(
+        '{"event":"turn_end","chat_id":"old-metadata"}\n',
+        encoding="utf-8",
+    )
+    activity_ns = int(datetime(2026, 6, 15, 12, 0, 0).timestamp() * 1_000_000_000)
+    os.utime(transcript, ns=(activity_ns, activity_ns))
+
+    rows = list_webui_sessions(manager)
+
+    assert [row["key"] for row in rows] == [
+        "websocket:old-metadata",
+        "websocket:newer-metadata",
+    ]
+    assert rows[0]["updated_at"].startswith("2026-06-15T12:00:00")
+
+
+def test_webui_session_list_rescans_when_transcript_changes(
+    tmp_path: Path,
+    monkeypatch,
+) -> None:
+    webui_dir = tmp_path / "webui"
+    webui_dir.mkdir()
+    monkeypatch.setattr(session_list_index, "get_webui_dir", lambda: webui_dir)
+
+    manager = SessionManager(tmp_path)
+    session = manager.get_or_create("websocket:transcript-change")
+    session.created_at = datetime(2026, 6, 15, 10, 0, 0)
+    session.updated_at = datetime(2026, 6, 15, 10, 0, 0)
+    session.add_message("user", "preview")
+    session.updated_at = datetime(2026, 6, 15, 10, 0, 0)
+    manager.save(session)
+
+    assert list_webui_sessions(manager)[0]["preview"] == "preview"
+
+    transcript = webui_dir / "websocket_transcript-change.jsonl"
+    transcript.write_text(
+        '{"event":"turn_end","chat_id":"transcript-change"}\n',
+        encoding="utf-8",
+    )
+    activity_ns = int(datetime(2026, 6, 15, 12, 30, 0).timestamp() * 1_000_000_000)
+    os.utime(transcript, ns=(activity_ns, activity_ns))
+
+    original_scan = session_list_index._scan_session_row
+    scanned: list[str] = []
+
+    def record_scan(session_manager: SessionManager, path: Path) -> dict | None:
+        scanned.append(path.name)
+        return original_scan(session_manager, path)
+
+    monkeypatch.setattr(session_list_index, "_scan_session_row", record_scan)
+
+    rows = list_webui_sessions(manager)
+
+    assert scanned == [manager._get_session_path("websocket:transcript-change").name]
+    assert rows[0]["updated_at"].startswith("2026-06-15T12:30:00")
+
+
 def list_webui_sessions(manager: SessionManager) -> list[dict]:
     return session_list_index.list_webui_sessions(manager)

webui/src/components/settings/SettingsView.tsx

@@ -1733,9 +1733,11 @@ export function SettingsView({
                 {t("settings.backToChat")}
               </button>
             ) : null}
-            <p className="mb-2 text-[12px] font-normal text-muted-foreground">
+            {activeSection !== "automations" ? (
-              {t("settings.sidebar.title")}
+              <p className="mb-2 text-[12px] font-normal text-muted-foreground">
-            </p>
+                {t("settings.sidebar.title")}
+              </p>
+            ) : null}
             <h1 className="text-[24px] font-normal leading-tight tracking-normal text-foreground sm:text-[28px]">
               {text(`settings.nav.${activeSection}`, titleForSection(activeSection))}
             </h1>