Download center: copy code, online/offline status; remove client offline mode.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/routes.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 
 import json
 import secrets
+from datetime import datetime
 from functools import wraps
 
 from flask import (
@@ -323,7 +324,8 @@ def register_routes(app: Flask) -> None:
             if u["role"] == "admin":
                 acts = conn.execute(
                     """
-                    SELECT act.*, a.name AS account_name, m.name AS machine_name
+                    SELECT act.*, a.name AS account_name, m.name AS machine_name,
+                           m.last_seen_at AS machine_last_seen
                     FROM activations act
                     LEFT JOIN accounts a ON a.id = act.account_id
                     LEFT JOIN machines m ON m.id = act.machine_id
@@ -333,7 +335,8 @@ def register_routes(app: Flask) -> None:
             else:
                 acts = conn.execute(
                     """
-                    SELECT act.*, a.name AS account_name, m.name AS machine_name
+                    SELECT act.*, a.name AS account_name, m.name AS machine_name,
+                           m.last_seen_at AS machine_last_seen
                     FROM activations act
                     LEFT JOIN accounts a ON a.id = act.account_id
                     LEFT JOIN machines m ON m.id = act.machine_id
@@ -342,7 +345,25 @@ def register_routes(app: Flask) -> None:
                     """,
                     (u.get("account_id"),),
                 ).fetchall()
-            activations = [database.row_to_dict(r) for r in acts]
+            activations = []
+            now_ts = database.now()
+            online_sec = 180  # 3 分钟内有心跳视为在线
+            for r in acts:
+                item = database.row_to_dict(r)
+                last = item.get("machine_last_seen")
+                if item.get("status") == "active" and last and (now_ts - float(last)) <= online_sec:
+                    item["online_label"] = "在线"
+                    item["online"] = True
+                else:
+                    item["online_label"] = "离线"
+                    item["online"] = False
+                try:
+                    item["created_at_fmt"] = datetime.fromtimestamp(float(item["created_at"])).strftime(
+                        "%Y-%m-%d %H:%M"
+                    )
+                except (TypeError, ValueError, OSError):
+                    item["created_at_fmt"] = str(item.get("created_at") or "—")
+                activations.append(item)
         exe_name = "黄金市价辅助.exe"
         exe_path = RELEASES_DIR / exe_name
         return render_template(