fix(panel): running-harvest detection covers manually triggered runs

active_harvests() only read launchd/systemd service state, so runs started
via the panel button or a terminal (not launchd) were invisible on the
homepage. Union with runlock-based detection: each port-<port>.<pid>.lock
created by harvest.sh itself, PID liveness-checked, source name recovered
from the PID's command line — launcher-independent.

bin/platform_layer.py

@@ -7,6 +7,7 @@ bash 侧的同一实现,保证脚本与面板永远行为一致;读取类操作
 
 import json
 import os
+import re
 import subprocess
 import sys
 from datetime import datetime, timedelta
@@ -371,7 +372,37 @@ def service_state(name):
 
 
 def active_harvests():
-    return [n for n, _ in list_schedules().items() if service_state(n) == "running"]
+    """正在运行的采集源名列表(跨启动方式)。
+
+    launchd/systemd 服务态只能看到定时触发的任务;手动触发(面板按钮、
+    终端)不经过服务管理器。runlocks(port-<port>.<pid>.lock)由 harvest.sh
+    自身创建,对 PID 反查命令行可得源名 —— 两者取并集。
+    """
+    active = [n for n, _ in list_schedules().items() if service_state(n) == "running"]
+    lockdir = Path(default_work_dir()) / "runlocks"
+    if not lockdir.is_dir():
+        return active
+    for f in sorted(lockdir.glob("port-*.lock")):
+        stem = f.name[:-5]  # port-<port>.<pid>
+        try:
+            pid = int(stem.rsplit(".", 1)[1])
+        except (ValueError, IndexError):
+            continue
+        try:
+            os.kill(pid, 0)  # 进程存活检查
+        except OSError:
+            continue
+        try:
+            cmd = subprocess.run(
+                ["ps", "-p", str(pid), "-o", "command="],
+                capture_output=True, text=True, timeout=5,
+            ).stdout
+        except Exception:  # noqa: BLE001
+            continue
+        m = re.search(r"harvest\.sh\s+([A-Za-z0-9_-]+)", cmd)
+        if m and m.group(1) not in active:
+            active.append(m.group(1))
+    return active
 
 
 def schedule_enable(name):