GET /api/mobile/actions/:address

GET /api/mobile/actions/0x0ffb0d05edcc648bc5dd06e844490b98384df4a1?limit=100

{
  "count": 3,
  "actions": [
    {
      "txHash": "0x...",
      "actionType": "post",
      "weight": 1.0,
      "targetId": "post_xyz123",
      "status": "confirmed",
      "blockNumber": 1232,
      "timestamp": 1729379800,
      "deviceInfo": {
        "os": "iOS",
        "networkType": "5g",
        "region": "BR-SP"
      }
    },
    {
      "txHash": "0x...",
      "actionType": "like",
      "weight": 0.2,
      "targetId": "post_abc456",
      "status": "pending"
    }
  ]
}