♻️ 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/__init__.py

@@ -0,0 +1,40 @@
+from . import builders, models
+from .builders import (
+    InfoCardBuilder,
+    LayoutBuilder,
+    MarkdownBuilder,
+    NotebookBuilder,
+    PluginHelpPageBuilder,
+    PluginMenuBuilder,
+    TableBuilder,
+)
+from .models import (
+    HelpCategory,
+    HelpItem,
+    InfoCardData,
+    PluginHelpPageData,
+    PluginMenuCategory,
+    PluginMenuData,
+    PluginMenuItem,
+    RenderableComponent,
+)
+
+__all__ = [
+    "HelpCategory",
+    "HelpItem",
+    "InfoCardBuilder",
+    "InfoCardData",
+    "LayoutBuilder",
+    "MarkdownBuilder",
+    "NotebookBuilder",
+    "PluginHelpPageBuilder",
+    "PluginHelpPageData",
+    "PluginMenuBuilder",
+    "PluginMenuCategory",
+    "PluginMenuData",
+    "PluginMenuItem",
+    "RenderableComponent",
+    "TableBuilder",
+    "builders",
+    "models",
+]