♻️ refactor: 统一图片渲染架构并引入通用UI组件系统 (#2019)

* ♻️ refactor: 统一图片渲染架构并引入通用UI组件系统

🎨 **渲染服务重构**
- 统一图片渲染入口，引入主题系统支持
- 优化Jinja2环境管理，支持主题覆盖和插件命名空间
- 新增UI缓存机制和主题重载功能

✨ **通用UI组件系统**
- 新增 zhenxun.ui 模块，提供数据模型和构建器
- 引入BaseBuilder基类，支持链式调用
- 新增多种UI构建器：InfoCard, Markdown, Table, Chart, Layout等
- 新增通用组件：Divider, Badge, ProgressBar, UserInfoBlock

🔄 **插件迁移**
- 迁移9个内置插件至新渲染系统
- 移除各插件中分散的图片生成工具
- 优化数据处理和渲染逻辑

💥 **Breaking Changes**
- 移除旧的图片渲染接口和模板路径
- TEMPLATE_PATH 更名为 THEMES_PATH
- 插件需适配新的RendererService和zhenxun.ui模块

* ✅ test(check): 更新自检插件测试中的渲染服务模拟

* ♻️ refactor(renderer): 将缓存文件名哈希算法切换到 SHA256

* ♻️ refactor(shop): 移除商店HTML图片生成模块

* 🚨 auto fix by pre-commit hooks

---------

Co-authored-by: webjoin111 <455457521@qq.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

zhenxun/ui/models/core/markdown.py

@@ -0,0 +1,124 @@
+from abc import ABC, abstractmethod
+from typing import Literal
+
+from pydantic import BaseModel, Field
+
+__all__ = [
+    "CodeElement",
+    "HeadingElement",
+    "ImageElement",
+    "ListElement",
+    "ListItemElement",
+    "MarkdownData",
+    "MarkdownElement",
+    "QuoteElement",
+    "RawHtmlElement",
+    "TableElement",
+    "TextElement",
+]
+
+
+class MarkdownElement(BaseModel, ABC):
+    @abstractmethod
+    def to_markdown(self) -> str:
+        """Serializes the element to its Markdown string representation."""
+        pass
+
+
+class TextElement(MarkdownElement):
+    text: str
+
+    def to_markdown(self) -> str:
+        return self.text
+
+
+class HeadingElement(MarkdownElement):
+    text: str
+    level: int = Field(..., ge=1, le=6)
+
+    def to_markdown(self) -> str:
+        return f"{'#' * self.level} {self.text}"
+
+
+class ImageElement(MarkdownElement):
+    src: str
+    alt: str = "image"
+
+    def to_markdown(self) -> str:
+        return f"![{self.alt}]({self.src})"
+
+
+class CodeElement(MarkdownElement):
+    code: str
+    language: str = ""
+
+    def to_markdown(self) -> str:
+        return f"```{self.language}\n{self.code}\n```"
+
+
+class RawHtmlElement(MarkdownElement):
+    html: str
+
+    def to_markdown(self) -> str:
+        return self.html
+
+
+class TableElement(MarkdownElement):
+    headers: list[str]
+    rows: list[list[str]]
+    alignments: list[Literal["left", "center", "right"]] | None = None
+
+    def to_markdown(self) -> str:
+        header_row = "| " + " | ".join(self.headers) + " |"
+
+        if self.alignments:
+            align_map = {"left": ":---", "center": ":---:", "right": "---:"}
+            separator_row = (
+                "| "
+                + " | ".join([align_map.get(a, "---") for a in self.alignments])
+                + " |"
+            )
+        else:
+            separator_row = "| " + " | ".join(["---"] * len(self.headers)) + " |"
+
+        data_rows = "\n".join(
+            "| " + " | ".join(map(str, row)) + " |" for row in self.rows
+        )
+        return f"{header_row}\n{separator_row}\n{data_rows}"
+
+
+class ContainerElement(MarkdownElement):
+    content: list[MarkdownElement] = Field(default_factory=list)
+
+
+class QuoteElement(ContainerElement):
+    def to_markdown(self) -> str:
+        inner_md = "\n".join(part.to_markdown() for part in self.content)
+        return "\n".join([f"> {line}" for line in inner_md.split("\n")])
+
+
+class ListItemElement(ContainerElement):
+    def to_markdown(self) -> str:
+        return "\n".join(part.to_markdown() for part in self.content)
+
+
+class ListElement(ContainerElement):
+    ordered: bool = False
+
+    def to_markdown(self) -> str:
+        lines = []
+        for i, item in enumerate(self.content):
+            if isinstance(item, ListItemElement):
+                prefix = f"{i + 1}." if self.ordered else "*"
+                item_content = item.to_markdown()
+                lines.append(f"{prefix} {item_content}")
+        return "\n".join(lines)
+
+
+class MarkdownData(BaseModel):
+    """Markdown转图片的数据模型"""
+
+    style_name: str | None = None
+    markdown: str
+    width: int = 800
+    css_path: str | None = None