feat: Sentinel 数字跳动动画 + 进度条平滑过渡

- 数字 count-up/down: requestAnimationFrame + ease-out cubic, 350ms
- 中间值过渡: 15%→22% 会显示 15.2,16.1,17.5...22.0
- 进度条: CSS transition 自动处理宽度变化
- 卡片 DOM 复用: 更新值而非重建 innerHTML

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

config/permissions/pending_requests.json

@@ -218,5 +218,27 @@
       "framework.command.execute"
     ],
     "timestamp": 27154.605505473
+  },
+  "8408596b": {
+    "plugin_name": "example_plugin",
+    "permissions": [
+      "plugin.example.read",
+      "plugin.example.write",
+      "plugin.example.execute",
+      "framework.event.subscribe",
+      "framework.command.execute"
+    ],
+    "timestamp": 27252.869951113
+  },
+  "09adcbfe": {
+    "plugin_name": "sentinel",
+    "permissions": [
+      "plugin.sentinel.read",
+      "plugin.sentinel.write",
+      "plugin.network.access",
+      "framework.event.subscribe",
+      "framework.command.execute"
+    ],
+    "timestamp": 27252.872485748
   }
 }