fix: 修复输出路径问题 — 路径解析改为基于应用目录而非CWD

当从外部目录(如D:\ccc)拖入文件时，输出文件会错误地写入源目录。
根因是所有路径使用相对路径 + os.getcwd() 解析，CWD不同则路径错误。

修复方案：
- ConfigManager.get_path() 改为使用 app_root (exe所在目录/脚本所在目录)
- 将 22 处裸硬编码 "data/result"/"data/output" 替换为 config.get_path()
- 添加 result_folder 到默认配置和 config.ini
- 修复 error_utils.py 中的路径匹配字符串

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

app/ui/file_operations.py

@@ -35,11 +35,11 @@ def ensure_directories():
     """确保必要的目录结构存在"""
     config = ConfigManager()
     directories = [
-        config.get('Paths', 'input_folder', fallback='data/input'),
-        config.get('Paths', 'output_folder', fallback='data/output'),
-        'data/result',
-        config.get('Paths', 'temp_folder', fallback='data/temp'),
-        'logs'
+        config.get_path('Paths', 'input_folder', fallback='data/input', create=True),
+        config.get_path('Paths', 'output_folder', fallback='data/output', create=True),
+        config.get_path('Paths', 'result_folder', fallback='data/result', create=True),
+        config.get_path('Paths', 'temp_folder', fallback='data/temp', create=True),
+        os.path.join(config.app_root, 'logs')
     ]
     for directory in directories:
         if not os.path.exists(directory):
@@ -52,8 +52,8 @@ def clean_cache(log_widget):
     from .command_runner import set_running_task
     try:
         config = ConfigManager()
-        processed_record = config.get('Paths', 'processed_record', fallback='data/processed_files.json')
-        output_folder = config.get('Paths', 'output_folder', fallback='data/output')
+        processed_record = config.get_path('Paths', 'processed_record', fallback='data/processed_files.json')
+        output_folder = config.get_path('Paths', 'output_folder', fallback='data/output')
         cache_files = [
             processed_record,
             os.path.join(output_folder, "processed_files.json"),
@@ -65,7 +65,7 @@ def clean_cache(log_widget):
                 os.remove(cache_file)
                 add_to_log(log_widget, f"已清除缓存文件: {cache_file}\n", "success")
 
-        temp_dir = os.path.join("data/temp")
+        temp_dir = config.get_path('Paths', 'temp_folder', fallback='data/temp')
         if os.path.exists(temp_dir):
             for file in os.listdir(temp_dir):
                 file_path = os.path.join(temp_dir, file)
@@ -76,7 +76,7 @@ def clean_cache(log_widget):
                 except Exception as e:
                     add_to_log(log_widget, f"清除文件时出错: {file_path}, 错误: {str(e)}\n", "error")
 
-        log_dir = "logs"
+        log_dir = os.path.join(config.app_root, 'logs')
         if os.path.exists(log_dir):
             for file in os.listdir(log_dir):
                 if file.endswith(".active"):
@@ -98,22 +98,18 @@ def clean_cache(log_widget):
 
 def open_result_directory():
     try:
-        result_dir = os.path.abspath("data/result")
-        if not os.path.exists(result_dir):
-            os.makedirs(result_dir, exist_ok=True)
+        config = ConfigManager()
+        result_dir = config.get_path('Paths', 'result_folder', fallback='data/result', create=True)
         os.startfile(result_dir)
     except Exception as e:
         messagebox.showerror("错误", f"无法打开结果目录: {str(e)}")
 
 
-def _open_directory_from_settings(settings_key, default_path, label):
-    """通用的从用户设置读取路径并打开目录"""
-    from .user_settings import load_user_settings
+def _open_directory_from_settings(config_key, default_path, label):
+    """通用的从配置读取路径并打开目录"""
     try:
-        s = load_user_settings()
-        path = os.path.abspath(s.get(settings_key, default_path))
-        if not os.path.exists(path):
-            os.makedirs(path, exist_ok=True)
+        config = ConfigManager()
+        path = config.get_path('Paths', config_key, fallback=default_path, create=True)
         os.startfile(path)
     except Exception as e:
         messagebox.showerror("错误", f"无法打开{label}: {str(e)}")
@@ -138,9 +134,10 @@ def clean_data_files(log_widget):
             add_to_log(log_widget, "操作已取消\n", "info")
             return
 
+        config = ConfigManager()
         files_cleaned = 0
 
-        input_dir = "data/input"
+        input_dir = config.get_path('Paths', 'input_folder', fallback='data/input')
         if os.path.exists(input_dir):
             for file in os.listdir(input_dir):
                 file_path = os.path.join(input_dir, file)
@@ -149,7 +146,7 @@ def clean_data_files(log_widget):
                     files_cleaned += 1
             add_to_log(log_widget, "已清理input目录\n", "info")
 
-        output_dir = "data/output"
+        output_dir = config.get_path('Paths', 'output_folder', fallback='data/output')
         if os.path.exists(output_dir):
             for file in os.listdir(output_dir):
                 file_path = os.path.join(output_dir, file)
@@ -170,8 +167,9 @@ def clean_result_files(log_widget):
         if not messagebox.askyesno("确认清理", "确定要清理result目录的文件吗？这将删除所有已生成的采购单文件。"):
             add_to_log(log_widget, "操作已取消\n", "info")
             return
+        config = ConfigManager()
         count = 0
-        result_dir = "data/result"
+        result_dir = config.get_path('Paths', 'result_folder', fallback='data/result')
         if os.path.exists(result_dir):
             for file in os.listdir(result_dir):
                 file_path = os.path.join(result_dir, file)