feat: 重构代码生成模块并优化相关功能

- 重构代码生成模板，统一路由前缀和业务路径规范
- 优化数据库表分页查询性能，支持方言特定实现
- 新增同步数据库差异预览功能
- 调整字段配置界面，支持拖拽排序和批量设置
- 清理旧版示例代码和冗余配置
- 修复权限和路由嵌套路径处理问题
- 优化前端样式和交互细节

backend/app/plugin/module_example/demo01/schema.py

@@ -0,0 +1,105 @@
+import re
+from dataclasses import dataclass
+
+from fastapi import Query
+from pydantic import (
+    BaseModel,
+    ConfigDict,
+    Field,
+    field_validator,
+    model_validator,
+)
+
+from app.common.enums import QueueEnum
+from app.core.base_schema import BaseSchema, UserBySchema
+from app.core.validator import DateTimeStr
+
+
+class Demo01CreateSchema(BaseModel):
+    """新增模型"""
+
+    name: str = Field(..., description="名称")
+    status: str = Field(default="0", description="是否启用(0:启用 1:禁用)")
+    description: str | None = Field(default=None, description="描述")
+
+    @field_validator("name")
+    @classmethod
+    def validate_name(cls, v: str) -> str:
+        """验证名称字段的格式和内容"""
+        # 去除首尾空格
+        v = v.strip()
+        if not v:
+            raise ValueError("名称不能为空")
+        return v
+
+    @model_validator(mode="after")
+    def _after_validation(self):
+        """
+        核心业务规则校验
+        """
+        # 长度校验：名称最小长度
+        if len(self.name) < 2 or len(self.name) > 50:
+            raise ValueError("名称长度必须在2-50个字符之间")
+        # 格式校验：名称只能包含字母、数字、下划线和中划线
+        if not re.fullmatch(r"[A-Za-z0-9_-]+", self.name):
+            raise ValueError("名称只能包含字母、数字、下划线和中划线")
+        if self.status not in ["0", "1"]:
+            raise ValueError("是否启用必须为0或1")
+        # 描述校验：描述最大长度
+        if self.description and len(self.description) > 255:
+            raise ValueError("描述长度不能超过255个字符")
+        return self
+
+
+class Demo01UpdateSchema(Demo01CreateSchema):
+    """更新模型"""
+
+
+class Demo01OutSchema(Demo01CreateSchema, BaseSchema, UserBySchema):
+    """响应模型"""
+
+    model_config = ConfigDict(from_attributes=True)
+
+
+@dataclass
+class Demo01QueryParam:
+    """示例查询参数"""
+
+    def __init__(
+        self,
+        name: str | None = Query(None, description="名称"),
+        description: str | None = Query(None, description="描述"),
+        status: str | None = Query(None, description="是否启用"),
+        created_time: list[DateTimeStr] | None = Query(
+            None,
+            description="创建时间范围",
+            examples=["2025-01-01 00:00:00", "2025-12-31 23:59:59"],
+        ),
+        updated_time: list[DateTimeStr] | None = Query(
+            None,
+            description="更新时间范围",
+            examples=["2025-01-01 00:00:00", "2025-12-31 23:59:59"],
+        ),
+        created_id: int | None = Query(None, description="创建人"),
+        updated_id: int | None = Query(None, description="更新人"),
+    ) -> None:
+        # 模糊查询字段
+        self.name = (QueueEnum.like.value, name)
+        if description:
+            self.description = (QueueEnum.like.value, description)
+
+        # 精确查询字段
+        if status:
+            self.status = (QueueEnum.eq.value, status)
+
+        # 时间范围查询
+        if created_time and len(created_time) == 2:
+            self.created_time = (QueueEnum.between.value, (created_time[0], created_time[1]))
+        if updated_time and len(updated_time) == 2:
+            self.updated_time = (QueueEnum.between.value, (updated_time[0], updated_time[1]))
+
+        # 关联查询字段
+        if created_id:
+            self.created_id = (QueueEnum.eq.value, created_id)
+        if updated_id:
+            self.updated_id = (QueueEnum.eq.value, updated_id)