feat(core): 添加SVN日志查询工具和DeepSeek AI处理功能

- 实现SVN日志查询工具，支持版本范围和用户过滤
- 添加DeepSeek API集成，用于AI分析日志内容
- 创建Excel生成器，输出工作量统计报表
- 添加日志实体类和项目配置管理功能
- 集成POI库支持Excel文件操作
- 实现Markdown格式日志导出功能

src/main/java/com/svnlog/LogEntry.java

@@ -0,0 +1,71 @@
+package com.svnlog;
+
+import java.util.Date;
+
+public class LogEntry {
+    private long revision;
+    private String author;
+    private Date date;
+    private String message;
+    private String[] changedPaths;
+
+    public LogEntry() {
+    }
+
+    public LogEntry(long revision, String author, Date date, String message) {
+        this.revision = revision;
+        this.author = author;
+        this.date = date;
+        this.message = message;
+    }
+
+    public long getRevision() {
+        return revision;
+    }
+
+    public void setRevision(long revision) {
+        this.revision = revision;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public void setDate(Date date) {
+        this.date = date;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public String[] getChangedPaths() {
+        return changedPaths;
+    }
+
+    public void setChangedPaths(String[] changedPaths) {
+        this.changedPaths = changedPaths;
+    }
+
+    @Override
+    public String toString() {
+        return "LogEntry{" +
+                "revision=" + revision +
+                ", author='" + author + '\'' +
+                ", date=" + date +
+                ", message='" + message + '\'' +
+                '}';
+    }
+}