feat: add Production ID input widget and UI configuration

- Add ProductionIdInput widget with placeholder and multi-line support
- Add UIConfig class for font family, font size, and input width settings
- Refactor data extraction tab to use horizontal PanedWindow layout
  - Left panel: Production ID text input (draggable width)
  - Right panel: control panel and log output
- Share Production IDs between data extraction and material validation tabs
- Add UI settings group in settings page (font selection, size, input width)
- For User users: automatically use shared Production IDs, simplified UI
- Apply font settings to input and log widgets
- Use sashpos() to set initial pane width correctly

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

config/schema.py

@@ -269,6 +269,34 @@ class ValidationConfig:
         return errors
 
 
+@dataclass
+class UIConfig:
+    """用户界面配置"""
+
+    font_family: str = "Microsoft YaHei UI"
+    font_size: int = 10
+    production_id_input_width: int = 20
+
+    @classmethod
+    def from_env(cls) -> "UIConfig":
+        """从环境变量创建配置"""
+        from config.env_loader import get_env, get_env_int
+        return cls(
+            font_family=get_env("UI_FONT_FAMILY", "Microsoft YaHei UI"),
+            font_size=get_env_int("UI_FONT_SIZE", 10),
+            production_id_input_width=get_env_int("UI_PRODUCTION_ID_INPUT_WIDTH", 20),
+        )
+
+    def validate(self) -> list[str]:
+        """验证配置，返回错误列表"""
+        errors = []
+        if self.font_size < 8 or self.font_size > 24:
+            errors.append("字号必须在 8-24 之间")
+        if self.production_id_input_width < 10 or self.production_id_input_width > 100:
+            errors.append("输入框宽度必须在 10-100 之间")
+        return errors
+
+
 @dataclass
 class AppConfig:
     """应用总配置"""
@@ -278,6 +306,7 @@ class AppConfig:
     paths: PathConfig
     extraction: ExtractionConfig
     validation: ValidationConfig
+    ui: UIConfig
 
     @classmethod
     def from_env(cls) -> "AppConfig":
@@ -288,6 +317,7 @@ class AppConfig:
             paths=PathConfig.from_env(),
             extraction=ExtractionConfig.from_env(),
             validation=ValidationConfig.from_env(),
+            ui=UIConfig.from_env(),
         )
 
     def validate(self) -> list[str]:
@@ -298,6 +328,7 @@ class AppConfig:
         errors.extend(self.paths.validate())
         errors.extend(self.extraction.validate())
         errors.extend(self.validation.validate())
+        errors.extend(self.ui.validate())
         return errors
 
     def to_dict(self) -> dict:
@@ -348,4 +379,9 @@ class AppConfig:
                 "default_manager": self.validation.default_manager,
                 "match_mode": self.validation.match_mode,
             },
+            "ui": {
+                "font_family": self.ui.font_family,
+                "font_size": self.ui.font_size,
+                "production_id_input_width": self.ui.production_id_input_width,
+            },
         }