feat: AiAnalysis - 16通道AI数据UDP实时采集与分析

功能：
- UDP端口监听，实时接收数据
- 解析16通道逗号分隔的ADC数据
- 实时波形绘制（支持滚轮缩放、右键拖拽、双击恢复）
- 数据自动保存到 data_端口号/ 目录
- 支持打开历史CSV文件回放查看
- 16通道独立颜色，可切换显示/隐藏
- 深色主题界面

datamanager.cpp

@@ -0,0 +1,127 @@
+#include "datamanager.h"
+#include <QDir>
+#include <QDebug>
+
+DataManager::DataManager(QObject *parent)
+    : QObject(parent)
+    , m_recording(false)
+    , m_headerWritten(false)
+{
+}
+
+DataManager::~DataManager()
+{
+    stopRecording();
+}
+
+bool DataManager::startRecording(const QString &dirPath)
+{
+    stopRecording();
+
+    QDir dir(dirPath);
+    if (!dir.exists()) {
+        if (!dir.mkpath(".")) {
+            qWarning() << "无法创建目录:" << dirPath;
+            return false;
+        }
+    }
+
+    QString fileName = QDateTime::currentDateTime().toString("yyyy-MM-dd_HH-mm-ss") + ".csv";
+    m_filePath = dir.filePath(fileName);
+
+    m_file.setFileName(m_filePath);
+    if (!m_file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+        qWarning() << "无法创建文件:" << m_filePath;
+        return false;
+    }
+
+    m_stream.setDevice(&m_file);
+    m_headerWritten = false;
+    m_recording = true;
+
+    qDebug() << "开始记录数据到:" << m_filePath;
+    return true;
+}
+
+void DataManager::stopRecording()
+{
+    if (m_recording) {
+        m_stream.flush();
+        m_file.close();
+        m_recording = false;
+        qDebug() << "停止记录, 文件:" << m_filePath;
+    }
+}
+
+bool DataManager::isRecording() const
+{
+    return m_recording;
+}
+
+QString DataManager::currentFilePath() const
+{
+    return m_filePath;
+}
+
+void DataManager::appendDataPoint(const QVector<int> &values)
+{
+    if (!m_recording) return;
+
+    if (!m_headerWritten) {
+        // 写入表头
+        QStringList headers;
+        for (int i = 0; i < 16; ++i) {
+            headers << QString("ch%1").arg(i);
+        }
+        m_stream << headers.join(",") << "\n";
+        m_headerWritten = true;
+    }
+
+    QStringList parts;
+    for (int v : values) {
+        parts << QString::number(v);
+    }
+    m_stream << parts.join(",") << "\n";
+}
+
+QVector<QVector<double>> DataManager::loadFile(const QString &filePath, QString &error)
+{
+    QVector<QVector<double>> result(16);
+
+    QFile file(filePath);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        error = QString("无法打开文件: %1").arg(filePath);
+        return result;
+    }
+
+    QTextStream stream(&file);
+    bool firstLine = true;
+
+    while (!stream.atEnd()) {
+        QString line = stream.readLine().trimmed();
+        if (line.isEmpty()) continue;
+
+        // 跳过表头
+        if (firstLine) {
+            firstLine = false;
+            // 检查是否是表头（包含非数字字符如ch）
+            if (line.contains("ch", Qt::CaseInsensitive) && !line.at(0).isDigit()) {
+                continue;
+            }
+        }
+
+        QStringList parts = line.split(",");
+        if (parts.size() < 16) continue;
+
+        for (int i = 0; i < 16; ++i) {
+            bool ok;
+            double val = parts[i].toDouble(&ok);
+            if (ok) {
+                result[i].append(val);
+            }
+        }
+    }
+
+    file.close();
+    return result;
+}