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+# Navigation Tools And History Table Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Move shell utilities into the navigation rail and make every shared export-history table compact and filler-free.
+
+**Architecture:** `MainWindow` owns only header composition and passes the existing settings action into `NavigationRail`. `NavigationRail` owns a visually separated bottom utility box. `ExportHistoryPane` owns one semantic column specification in which only the file column is resizable.
+
+**Tech Stack:** Java 17, JavaFX 17, JUnit 5, Maven 3.8.6, existing Feather/Ikonli icon layer.
+
+## Global Constraints
+
+- Do not use subagents; execute this plan in the current task.
+- Do not modify master or its untracked files; work only on `codex/table-layout-optimization`.
+- Use TDD: observe the required test fail before changing production code.
+- The header must create neither MENU nor SETTINGS buttons.
+- Navigation bottom tools are ordered SETTINGS then collapse, with collapse last.
+- The history table has exactly six semantic columns and no filler/empty column.
+- Fixed widths are action 150px, index 64px, query 140px, count 88px, time 180px; file is the sole resizable column with min width 220px.
+
+---
+
+### Task 1: Move shell utilities into the navigation rail
+
+**Files:**
+- Modify: `src/test/java/com/example/workutils/system/ui/MainWindowArchitectureTest.java`
+- Modify: `src/test/java/com/example/workutils/system/ui/shell/NavigationRailTest.java`
+- Modify: `src/main/java/com/example/workutils/system/ui/MainWindow.java`
+- Modify: `src/main/java/com/example/workutils/system/ui/shell/NavigationRail.java`
+- Modify: `src/test/java/com/example/workutils/system/ui/NativeUiVisualAcceptanceFixture.java`
+
+**Interfaces:**
+- `NavigationRail(List<NavItem>, Consumer<NavItem>, Runnable openSettings)` requires the existing settings callback.
+- `selectSettings()` selects the utility entry and clears business navigation selection.
+
+- [ ] Write tests asserting a four-child header (brand, chevron, title, spacer), no `#menu-button`/`#settings-button`, bottom tool ordering, collapsed settings discoverability, settings route, and bottom-only collapse.
+- [ ] Run `mvn -q -o -Dtest=MainWindowArchitectureTest,NavigationRailTest test` and confirm failures reference the existing header buttons/missing rail settings entry.
+- [ ] Remove both header buttons, add the bottom settings toggle, preserve the existing embedded settings callback, and keep plugin/settings selections mutually exclusive.
+- [ ] Update the safe visual fixture constructor call for the explicit settings callback.
+- [ ] Re-run the focused tests and commit with message `优化导航底部工具区`.
+
+### Task 2: Apply semantic widths to the shared history table
+
+**Files:**
+- Create: `src/test/java/com/example/workutils/system/ui/history/ExportHistoryPaneLayoutTest.java`
+- Modify: `src/main/java/com/example/workutils/system/ui/history/ExportHistoryPane.java`
+
+**Interfaces:**
+- Existing constructors remain unchanged for API, Scanner, and MyBatis consumers.
+- `table()` remains the test/accessibility entry point.
+
+- [ ] Add JavaFX tests that build a real `ExportHistoryPane`, assert exactly six titled columns, assert all five fixed sizes/resizable flags, and assert only the file column grows when the table widens.
+- [ ] Run `mvn -q -o -Dtest=ExportHistoryPaneLayoutTest test` and confirm the old equal-width behavior fails.
+- [ ] Apply constrained resize with five non-resizable semantic columns and one resizable file column using the exact global widths.
+- [ ] Run `ExportHistoryPaneLayoutTest,SharedPaneAccessibilityTest` and verify all consumers still use the unchanged shared constructor.
+- [ ] Commit with message `统一导出历史表格列宽`.
+
+### Task 3: Visual and cumulative verification
+
+**Files:**
+- Modify if required: `src/test/java/com/example/workutils/system/ui/NativeUiVisualAcceptanceFixture.java`
+- Output (ignored): `.superpowers/sdd/2026-08-01-navigation-tools-and-history-table/visual-acceptance/`
+
+**Interfaces:**
+- Reuse the opt-in JavaFX visual fixture; do not add business side effects.
+
+- [ ] Generate real Scene screenshots at 1440x900 and 1024x768 for expanded/collapsed/selected states including the bottom tools.
+- [ ] Put the user screenshot and generated screenshots in the same visual comparison input and check header, bottom tool order, collapsed discoverability, table widths, and filler removal.
+- [ ] Run `mvn -q -o test`, `mvn -q -o -DskipTests compile`, and `git diff --check master..HEAD`.
+- [ ] Self-review the full branch for API-specific hacks, empty columns, duplicated actions, stale tests, and unrelated changes.
+- [ ] Commit any fixture-only adjustment separately as `补充公共表格视觉验收`.
diff --git a/docs/superpowers/specs/2026-08-01-navigation-tools-and-history-table-design.md b/docs/superpowers/specs/2026-08-01-navigation-tools-and-history-table-design.md
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+# 底部工具区与公共历史表格优化设计
+
+## 目标
+
+根据用户验收截图修复两个公共 UI 问题：消除应用顶部重复操作入口，并让 API、扫描、MyBatis SQL 导出的共享历史表格使用稳定、可读且无 filler 空白的列宽布局。
+
+## 应用外壳
+
+- 顶部栏只保留 WorkUtils 品牌、插件面包屑/页面标题和弹性留白。
+- 顶部不创建 `MENU` 或 `SETTINGS` 按钮；删除而不是按状态隐藏。
+- `NavigationRail` 底部建立独立工具区，与业务插件列表通过 1px 分隔线分组。
+- 工具区固定顺序为：系统设置、展开/收缩。展开/收缩永远是最底部控件。
+- 展开态设置入口显示 Feather 齿轮和“系统设置”；折叠态只显示齿轮，同时保留 Tooltip 和 accessible text。
+- 设置入口复用现有 `openSettingsEmbedded` 路由和内容区，不创建新窗口、不改变配置格式。
+- 设置入口使用与业务导航一致的 hover、selected、focus 语义；进入插件时取消设置选中态，进入设置时清除业务插件选中态。
+
+## 公共历史表格
+
+- 修复点只位于共享 `ExportHistoryPane`，不为 API 页面增加专属列或条件分支。
+- 表格维持六个真实语义列：操作、序号、查询/格式、生成文件、数量、时间；不添加空列。
+- 操作列固定 150px，序号列固定 64px，查询/格式列固定 140px，数量列固定 88px，时间列固定 180px。
+- 生成文件列是唯一可调整列，最小 220px，并吸收表格扣除固定列后的全部剩余宽度。
+- 使用 JavaFX constrained resize policy，使表头和数据行铺满可用宽度，不出现右侧 filler。
+- Scanner、MyBatis SQL 导出、API 历史继续通过原有 `ExportHistoryPane` 构造器使用同一策略。
+
+## 验收与回归
+
+- 架构测试证明顶部没有 MENU/SETTINGS 按钮，底部工具区顺序正确。
+- 行为测试覆盖设置路由、插件返回、折叠 Tooltip/accessibility 和底部唯一折叠入口。
+- 表格测试覆盖列数、列标题、固定列宽、序号紧凑、文件列唯一增长以及宽表格无 filler。
+- 运行聚焦测试、全量测试、编译和 `git diff --check`。
+- 用真实 JavaFX Scene 截图与用户截图同批对照；不伪造 Windows 原生标题栏。
+
+## 自审
+
+- 范围仅包含已批准的外壳入口调整和共享历史表格布局。
+- 没有 API 专属 hack、空 filler 列、新窗口、配置迁移或业务行为变化。
+- 所有尺寸、顺序和选择语义均已明确，没有待定项。