feat: 增加 ECharts 渲染与预览交互增强

- 新增可复用的 markdown-echarts 工作区，支持安全的 YAML 围栏、默认值、语义校验、错误占位和 SVG 渲染
- 将 ECharts 接入统一 Markdown、快速预览、精确预览与 PDF 链路，并复用 Mermaid 的不可跨页和超高图单页适配策略
- 默认示例加入 ECharts，增加源文本折叠、顶部文档状态、页码输入跳转与滚动同步
- 快速预览改用外层容器滚动，使滚动条与精确预览统一贴在预览区域右侧，并兼容显示缩放
- 完善 Docker 工作区复制、可配置 Compose 镜像、测试覆盖和进度文档

apps/web/src/styles.css

@@ -63,6 +63,39 @@ button:disabled {
   background: rgb(247 248 246 / 92%);
 }
 
+.topbar-primary {
+  display: flex;
+  flex: 1;
+  align-items: center;
+  gap: 32px;
+  min-width: 0;
+}
+
+.topbar-brand {
+  flex: none;
+}
+
+.document-summary {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+  max-width: min(42vw, 520px);
+  padding-left: 28px;
+  border-left: 1px solid #d4dad7;
+}
+
+.document-summary > strong {
+  overflow: hidden;
+  font-size: 0.82rem;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.document-summary .render-status {
+  max-width: 100%;
+  margin-top: 3px;
+}
+
 .eyebrow {
   margin: 0 0 4px;
   color: #3b755d;
@@ -82,6 +115,7 @@ h1 {
 
 .topbar-actions {
   display: flex;
+  flex: none;
   flex-wrap: wrap;
   gap: 10px;
 }
@@ -104,6 +138,11 @@ h1 {
   grid-template-columns: minmax(360px, 0.8fr) minmax(520px, 1.2fr);
   flex: 1;
   min-height: 0;
+  transition: grid-template-columns 180ms ease;
+}
+
+.editor-layout.is-source-collapsed {
+  grid-template-columns: 48px minmax(520px, 1fr);
 }
 
 .editor-panel,
@@ -119,6 +158,45 @@ h1 {
   background: #f6f7f5;
 }
 
+.source-panel-content {
+  display: flex;
+  flex: 1;
+  flex-direction: column;
+  min-height: 0;
+}
+
+.source-panel-content[hidden] {
+  display: none;
+}
+
+.source-panel-toggle {
+  min-height: 32px;
+  padding: 0 10px;
+  border-color: #c9d4ce;
+  background: #f8fbf9;
+  color: #4f695e;
+  font-size: 0.7rem;
+}
+
+.source-panel-restore {
+  width: 100%;
+  height: 100%;
+  min-height: 0;
+  padding: 14px 0;
+  border: 0;
+  border-radius: 0;
+  background: #f0f3f1;
+  color: #4f695e;
+  font-size: 0.72rem;
+  letter-spacing: 0.08em;
+  writing-mode: vertical-rl;
+}
+
+.source-panel-restore:hover {
+  background: #e4ebe7;
+  color: #356c55;
+}
+
 .panel-heading {
   display: flex;
   align-items: center;
@@ -181,12 +259,43 @@ h1 {
   flex: none;
   min-height: 44px;
   align-items: center;
-  justify-content: flex-end;
+  justify-content: space-between;
+  gap: 12px;
   padding: 6px 20px;
   border-bottom: 1px solid #d9dedb;
   background: rgb(255 255 255 / 58%);
 }
 
+.preview-page-control {
+  display: inline-flex;
+  flex: none;
+  align-items: center;
+  gap: 5px;
+  color: #5d7168;
+  font-size: 0.7rem;
+  font-variant-numeric: tabular-nums;
+  white-space: nowrap;
+}
+
+.preview-page-control input {
+  width: 48px;
+  height: 30px;
+  padding: 0 6px;
+  border: 1px solid #c9d4ce;
+  border-radius: 7px;
+  outline: 0;
+  background: #fff;
+  color: #356c55;
+  font: inherit;
+  font-weight: 700;
+  text-align: center;
+}
+
+.preview-page-control input:focus {
+  border-color: #74a88f;
+  box-shadow: 0 0 0 3px rgb(116 168 143 / 16%);
+}
+
 .preview-zoom-control {
   display: flex;
   align-items: center;
@@ -248,14 +357,6 @@ h1 {
   color: #9ba49f;
 }
 
-.preview-page-indicator {
-  flex: none;
-  color: #5d7168;
-  font-size: 0.7rem;
-  font-variant-numeric: tabular-nums;
-  white-space: nowrap;
-}
-
 .preview-mode-control {
   display: inline-flex;
   flex: none;
@@ -362,6 +463,28 @@ textarea:focus {
   min-height: 0;
   overflow: auto;
   padding: 0 30px;
+  scrollbar-color: #8d9993 #dfe4e1;
+  scrollbar-width: auto;
+}
+
+.preview-scroll::-webkit-scrollbar {
+  width: 14px;
+  height: 14px;
+}
+
+.preview-scroll::-webkit-scrollbar-track {
+  background: #dfe4e1;
+}
+
+.preview-scroll::-webkit-scrollbar-thumb {
+  min-height: 48px;
+  border: 3px solid #dfe4e1;
+  border-radius: 999px;
+  background: #8d9993;
+}
+
+.preview-scroll::-webkit-scrollbar-thumb:hover {
+  background: #6f7d76;
 }
 
 .paper {
@@ -808,6 +931,21 @@ textarea:focus {
     padding: 16px;
   }
 
+  .topbar-primary {
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 12px;
+  }
+
+  .document-summary {
+    width: 100%;
+    max-width: none;
+    padding-top: 10px;
+    padding-left: 0;
+    border-top: 1px solid #d4dad7;
+    border-left: 0;
+  }
+
   .topbar-actions {
     flex-direction: column;
   }
@@ -816,6 +954,10 @@ textarea:focus {
     grid-template-columns: 1fr;
   }
 
+  .editor-layout.is-source-collapsed {
+    grid-template-columns: 1fr;
+  }
+
   .editor-panel,
   .preview-panel {
     min-height: 650px;
@@ -830,6 +972,19 @@ textarea:focus {
     border-bottom: 1px solid #cbd2ce;
   }
 
+  .editor-layout.is-source-collapsed .editor-panel {
+    height: 44px;
+    min-height: 44px;
+  }
+
+  .source-panel-restore {
+    height: 44px;
+    min-height: 44px;
+    padding: 0 16px;
+    letter-spacing: 0;
+    writing-mode: horizontal-tb;
+  }
+
   .preview-scroll {
     padding: 0 10px;
   }
@@ -847,11 +1002,13 @@ textarea:focus {
   }
 
   .preview-toolbar {
-    justify-content: center;
+    flex-wrap: wrap;
+    justify-content: space-between;
     padding-inline: 10px;
   }
 
   .preview-zoom-control {
+    flex: 1 0 100%;
     width: 100%;
   }
 
@@ -865,6 +1022,12 @@ textarea:focus {
   }
 }
 
+@media (prefers-reduced-motion: reduce) {
+  .editor-layout {
+    transition: none;
+  }
+}
+
 @media (max-width: 520px) {
   .settings-drawer {
     width: 100vw;