Admin: APP-Version + SW-Version im System-Panel — SW by-v439, APP_VER 418

backend/routes/admin.py

@@ -569,6 +569,18 @@ async def system_info(user=Depends(require_admin)):
     except (OSError, AttributeError):
         pass
 
+    # SW-Cache-Version aus sw.js lesen
+    sw_version = "?"
+    try:
+        import re as _re
+        static_dir = os.getenv("STATIC_DIR", "/app/static")
+        sw_content = open(os.path.join(static_dir, "sw.js")).readline()
+        m = _re.search(r"'(by-v\d+)'", sw_content)
+        if m:
+            sw_version = m.group(1)
+    except Exception:
+        pass
+
     return {
         "db_size_mb":     round(db_size_mb, 2),
         "media_size_mb":  round(media_size_mb, 2),
@@ -576,6 +588,7 @@ async def system_info(user=Depends(require_admin)):
         "python_version": sys.version.split()[0],
         "disk_total_gb":  round(disk_total_gb, 2),
         "disk_free_gb":   round(disk_free_gb, 2),
+        "sw_version":     sw_version,
     }