feat: 磁盘分区列 — 多分区/进度条/overflow/过滤虚拟FS

SystemInfoCollector:
- _get_partitions(): psutil disk_partitions + 过滤虚拟FS
- 跳过 tmpfs/devtmpfs/proc/sysfs/cgroup等22种
- 无psutil时 fallback到根分区

前端4列: 160px 1fr 0.8fr 1fr
- col-disk: 分区名/挂载点/进度条/百分比
- max-height:200px overflow:auto
- 跨平台兼容

Co-Authored-By: Claude <noreply@anthropic.com>

services/web_panel/utils/system_info.py

@@ -66,6 +66,7 @@ class SystemInfoCollector:
             "memory": self._get_memory(),
             "swap": self._get_swap(),
             "disk": self._get_disk(),
+            "partitions": self._get_partitions(),
             "process": self._get_process(),
             "network": self._get_network(),
             "net_speed": self._get_network_speed(),
@@ -137,6 +138,53 @@ class SystemInfoCollector:
             pass
         return {"total_gb": 0, "used_gb": 0, "percent": 0}
 
+    _SKIP_FS = {'tmpfs', 'devtmpfs', 'devfs', 'overlay', 'squashfs', 'proc', 'sysfs',
+                'cgroup', 'cgroup2', 'debugfs', 'tracefs', 'fusectl', 'configfs',
+                'securityfs', 'pstore', 'efivarfs', 'autofs', 'ramfs', 'hugetlbfs',
+                'mqueue', 'bpf', 'binfmt_misc', 'rpc_pipefs', 'nfsd', 'smb3fs_ctl',
+                'snapfuse', 'fuse.gvfsd-fuse', 'fuse.portal'}
+
+    def _get_partitions(self) -> list:
+        """获取存储分区列表 (过滤虚拟文件系统)"""
+        parts = []
+        if self.psutil:
+            try:
+                for p in self.psutil.disk_partitions(all=False):
+                    if p.fstype and p.fstype.lower() in self._SKIP_FS:
+                        continue
+                    try:
+                        usage = self.psutil.disk_usage(p.mountpoint)
+                        parts.append({
+                            "device": p.device,
+                            "mount": p.mountpoint,
+                            "fstype": p.fstype or "",
+                            "total_gb": round(usage.total / 1073741824, 1),
+                            "used_gb": round(usage.used / 1073741824, 1),
+                            "percent": usage.percent,
+                        })
+                    except (PermissionError, OSError):
+                        parts.append({
+                            "device": p.device,
+                            "mount": p.mountpoint,
+                            "fstype": p.fstype or "",
+                            "total_gb": 0, "used_gb": 0, "percent": 0,
+                        })
+            except Exception:
+                pass
+        if not parts:
+            # Fallback: just root partition
+            disk = self._get_disk()
+            if disk.get("total_gb", 0) > 0:
+                parts.append({
+                    "device": "/",
+                    "mount": "/",
+                    "fstype": "",
+                    "total_gb": disk["total_gb"],
+                    "used_gb": disk["used_gb"],
+                    "percent": disk["percent"],
+                })
+        return parts
+
     def _get_disk(self) -> Dict[str, Any]:
         if self.psutil:
             try: