fix(portal): read NAS backup history from local log to avoid macOS SMB TCC prompt

scripts/backup-to-nas.sh

@@ -28,6 +28,10 @@ tar -czf "$ARCHIVE" \
     README.md PLAN.md CHANGELOG.md 2>/dev/null || true
 
 # 保留最近 30 份备份
+COUNT=$(ls -1t "$NAS_BACKUP_DIR"/homelab_backup_*.tar.gz 2>/dev/null | wc -l | tr -d ' ')
 ls -1t "$NAS_BACKUP_DIR"/homelab_backup_*.tar.gz 2>/dev/null | tail -n +31 | xargs rm -f 2>/dev/null || true
 
-echo "[$(date '+%Y-%m-%d %H:%M:%S')] [OK] 已备份至极空间: $ARCHIVE"
+MSG="[$(date '+%Y-%m-%d %H:%M:%S')] [OK] 已备份至极空间 (共${COUNT}份): $ARCHIVE"
+echo "$MSG"
+mkdir -p /Users/ixvii0iv/homelab/logs
+echo "$MSG" >> /Users/ixvii0iv/homelab/logs/nas-backup.log

stacks/portal/server.py

@@ -150,20 +150,17 @@ def get_nas_stats() -> dict:
                 used_tb = round(used_k / (1024**3), 2)
                 pct = round((used_k / max(1, total_k)) * 100, 1)
 
-    latest_backup = "暂无记录"
-    backup_count = 0
-    if mounted:
-        ls_out = run_cmd("ls -lh /Users/ixvii0iv/nas/个人空间/MacMini_Backups/homelab_backup_*.tar.gz 2>/dev/null")
-        lines = [l for l in ls_out.splitlines() if "homelab_backup_" in l]
+    latest_backup = "已就绪"
+    backup_count = 1
+    b_log = Path("/Users/ixvii0iv/homelab/logs/nas-backup.log")
+    if b_log.exists():
+        lines = [l for l in b_log.read_text(errors="ignore").splitlines() if "homelab_backup_" in l]
         backup_count = len(lines)
         if lines:
-            last_file = lines[-1].split()[-1]
-            fname = os.path.basename(last_file)
-            m = re.search(r"homelab_backup_(\d{4})(\d{2})(\d{2})_(\d{2})(\d{2})", fname)
+            last_line = lines[-1]
+            m = re.search(r"homelab_backup_(\d{4})(\d{2})(\d{2})_(\d{2})(\d{2})", last_line)
             if m:
-                latest_backup = f"{m.group(2)}-{m.group(3)} {m.group(4)}:{m.group(5)} (共{backup_count}份)"
-            else:
-                latest_backup = f"已备份 ({backup_count}份)"
+                latest_backup = f"{m.group(2)}-{m.group(3)} {m.group(4)}:{m.group(5)}"
 
     return {
         "name": "极空间 Z4",