实现AXIS风格仿真外壳

结论：真实浏览器仿真页面完成 AXIS-style Phase 1 外壳，新增菜单、工具栏、Manual/MDI、Preview/DRO、G-code pane、machine state 和状态栏，并保留 LinuxCNC WASM 执行与回放验证。

wasm-port/docs/axis-style-simulation-implementation.md

@@ -84,13 +84,16 @@ menu/toolbar/status badges
 └───────────────────────────────────────────────────────────────┘
 ```
 
-This should replace the current three-column MVP only after the new layout has
-equivalent smoke coverage.
+The Phase 1 implementation has replaced the former three-column MVP with this
+AXIS-style shell while preserving the existing LinuxCNC-backed execution and
+playback APIs.
 
 ## Implementation Phases
 
 ### Phase 1: AXIS-Style Shell
 
+Status: implemented.
+
 Build the visual shell around the existing simulation state:
 
 - menu bar: File, Machine, View, Help;
@@ -109,6 +112,17 @@ Validation:
 - current program selection and playback still work;
 - no existing simulation API is removed.
 
+Current implemented regions:
+
+- `data-axis-shell="titlebar"`;
+- `data-axis-shell="menubar"`;
+- `data-axis-shell="toolbar"`;
+- `data-axis-shell="manual-mdi"`;
+- `data-axis-shell="preview-dro"`;
+- `data-axis-shell="gcode-pane"`;
+- `data-axis-shell="machine-state"`;
+- `data-axis-shell="statusbar"`.
+
 ### Phase 2: Program Execution Workflow
 
 Upgrade the G-code pane and execution controls: