feat: add Tkinter GUI application for ERP automation tools

Implement a comprehensive GUI application with the following features:
- Data Extraction tab: Extract material plan data from ERP system
- Material Validation tab: Validate material status and match deletions
- Data Query tab: Query database for production order information
- Settings tab: Manage ERP, database, browser, and path configurations

Key components:
- MainWindow: Tabbed interface with status bar
- ConfigManager: JSON-based configuration management
- LogText: Custom read-only text widget with colored logging
- FileSelector: Reusable file/directory selection component
- ProgressDialog: Modal progress dialog for long operations

Technical details:
- Thread-safe UI updates using root.after()
- Stdout capture for legacy script integration
- Event-based readonly mode allowing copy/select operations
- Custom widget composition to avoid Tkinter ScrolledText issues

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

gui/widgets/progress_dialog.py

@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+进度对话框组件
+
+用于显示长时间运行操作的进度。
+"""
+
+import tkinter as tk
+from tkinter import ttk
+from typing import Optional, Callable
+
+
+class ProgressDialog:
+    """进度对话框"""
+
+    def __init__(
+        self,
+        parent,
+        title: str = "处理中...",
+        message: str = "请稍候",
+        can_cancel: bool = True,
+        on_cancel: Optional[Callable] = None
+    ):
+        """
+        初始化进度对话框
+
+        Args:
+            parent: 父窗口
+            title: 对话框标题
+            message: 显示消息
+            can_cancel: 是否可以取消
+            on_cancel: 取消回调函数
+        """
+        self.parent = parent
+        self.can_cancel = can_cancel
+        self.on_cancel = on_cancel
+        self.cancelled = False
+
+        # 创建对话框
+        self.dialog = tk.Toplevel(parent)
+        self.dialog.title(title)
+        self.dialog.resizable(False, False)
+        self.dialog.transient(parent)
+        self.dialog.grab_set()
+
+        # 居中显示
+        self._center()
+
+        # 创建内容
+        self._create_widgets(message)
+
+    def _center(self):
+        """将对话框居中显示"""
+        self.dialog.update_idletasks()
+        width = 400
+        height = 150
+        x = (self.dialog.winfo_screenwidth() // 2) - (width // 2)
+        y = (self.dialog.winfo_screenheight() // 2) - (height // 2)
+        self.dialog.geometry(f"{width}x{height}+{x}+{y}")
+
+    def _create_widgets(self, message: str):
+        """创建对话框组件"""
+        # 消息标签
+        self.message_label = ttk.Label(self.dialog, text=message, wraplength=380)
+        self.message_label.pack(pady=(20, 10), padx=20)
+
+        # 进度条
+        self.progress = ttk.Progressbar(
+            self.dialog,
+            mode='indeterminate',
+            length=360
+        )
+        self.progress.pack(pady=10, padx=20)
+        self.progress.start(10)
+
+        # 取消按钮
+        if self.can_cancel:
+            button_frame = ttk.Frame(self.dialog)
+            button_frame.pack(pady=10)
+
+            self.cancel_button = ttk.Button(
+                button_frame,
+                text="取消",
+                command=self._on_cancel
+            )
+            self.cancel_button.pack()
+
+    def _on_cancel(self):
+        """处理取消操作"""
+        self.cancelled = True
+        if self.on_cancel:
+            self.on_cancel()
+        self.close()
+
+    def update_message(self, message: str):
+        """更新显示消息"""
+        self.message_label.config(text=message)
+        self.dialog.update_idletasks()
+
+    def set_progress(self, value: int, maximum: int = 100):
+        """
+        设置进度值
+
+        Args:
+            value: 当前进度值
+            maximum: 最大值
+        """
+        self.progress.config(mode='determinate', maximum=maximum)
+        self.progress['value'] = value
+        self.dialog.update_idletasks()
+
+    def close(self):
+        """关闭对话框"""
+        self.progress.stop()
+        self.dialog.destroy()
+
+    def is_cancelled(self) -> bool:
+        """检查是否已取消"""
+        return self.cancelled