fix: harden recording recovery and dashboard metrics

frontend/src/components/ui/StorageCapacity.vue

@@ -5,6 +5,7 @@ interface StorageCapacityStatus {
   isEnabled: boolean;
   isAvailable: boolean;
   checkedPath: string;
+  volumeRoot: string;
   totalBytes: number;
   usedBytes: number;
   availableBytes: number;
@@ -83,6 +84,9 @@ function formatBytes(bytes: number) {
         <el-tag v-else :type="tagType" effect="light">{{ statusLabel }}</el-tag>
       </div>
       <p class="storage-capacity__path" :title="status.checkedPath">{{ status.checkedPath || "未配置输出路径" }}</p>
+      <p class="storage-capacity__volume" :title="status.volumeRoot">
+        检测卷：{{ status.volumeRoot || "--" }}
+      </p>
 
       <dl class="storage-capacity__metrics">
         <div><dt>已使用</dt><dd>{{ status.isAvailable ? formatBytes(status.usedBytes) : "--" }}</dd></div>
@@ -103,6 +107,7 @@ function formatBytes(bytes: number) {
 .storage-capacity__summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
 .storage-capacity__summary > strong { min-width: 0; color: var(--text-primary); font-size: 13px; font-variant-numeric: tabular-nums; }
 .storage-capacity__path { margin: 7px 0 0; overflow: hidden; color: var(--text-secondary); font-family: var(--font-mono); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
+.storage-capacity__volume { margin: 3px 0 0; overflow: hidden; color: var(--text-muted); font-family: var(--font-mono); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
 .storage-capacity__metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 13px 0 0; }
 .storage-capacity__metrics > div { min-width: 0; padding: 9px; border-radius: var(--radius-sm); background: var(--surface-muted); }
 .storage-capacity__metrics dt { color: var(--text-muted); font-size: 9px; }

frontend/src/types.ts

@@ -703,6 +703,7 @@ export interface StorageGuardStatus {
   isAvailable: boolean;
   hasEnoughSpace: boolean;
   checkedPath: string;
+  volumeRoot: string;
   totalBytes: number;
   usedBytes: number;
   availableBytes: number;
@@ -1011,6 +1012,7 @@ export interface DashboardStorageStatus {
   hasEnoughSpace: boolean;
   message: string;
   checkedPath: string;
+  volumeRoot: string;
   totalBytes: number;
   usedBytes: number;
   availableBytes: number;