fix(panel): homepage 上次触发 now shows real last-run time

launchd exposes no last-trigger either (systemd-only) — fill it from the
run log mtime (MM-DD HH:MM); merged unscheduled/disabled rows now carry
their parse_last_log too, so only genuinely never-run sources show
从未触发 (verified: 10 ran-today sources show real times, 4 never-run
reuters sources remain 从未触发).

web/app.py

@@ -625,7 +625,7 @@ def index():
             sources.append({
                 "source": n, "timer_name": "—", "run_time": "-",
                 "active": "unknown", "next": "-", "last": "从未触发",
-                "log": None, "status_class": "unknown",
+                "log": parse_last_log(n), "status_class": "unknown",
                 "skill_enabled": row["skill_enabled"], "toggle_on": row["toggle_on"],
                 "provider": "", "fallback_provider": "",
             })
@@ -640,6 +640,11 @@ def index():
             nxt = _next_fire(times, now)
             if nxt:
                 s["next"] = nxt.strftime("%m-%d %H:%M")
+        # 同理,上次触发用最近一次运行日志的时间(launchd 不提供)
+        if s.get("last") in (None, "", "-", "从未触发"):
+            mtime = (s.get("log") or {}).get("mtime", "")
+            if mtime:
+                s["last"] = mtime[5:]  # "2026-10-23 17:18" → "10-23 17:18"
     # digest timer 状态
     digest_props = get_systemd_props("news-harvester-digest.timer")
     digest_run_time = (read_oncalendar_from_systemd("news-harvester-digest.timer")