feat: 新增 Playwright 测试 + ModelStage UI 更新与 serial 小修

src-tauri/src/serial_core/serial.rs

@@ -241,13 +241,28 @@ pub async fn run_hand_gateway_serial(
                         frame.valid_config,
                         frame.block_count,
                     );
-                    for node in frame.nodes {
+                    let mut pressure_matrix = Vec::new();
+                    for node in &frame.nodes {
                         info!(
                             "[hand_gateway][node] mask=0x{:08X} valid={} payload={:02X?}",
                             node.config_mask,
                             node.valid,
                             node.payload,
                         );
+                        if node.valid {
+                            pressure_matrix.extend(
+                                HandGatewayCodec::parse_node_payload(&node.payload)?
+                                    .into_iter()
+                                    .map(f32::from),
+                            );
+                        } else {
+                            let sample_count = node.payload.len() / 2;
+                            pressure_matrix.extend(std::iter::repeat(0.0).take(sample_count));
+                        }
+                    }
+
+                    if !pressure_matrix.is_empty() {
+                        app.emit("hand_gateway_pressure_matrix", pressure_matrix)?;
                     }
                 }
             }