fix(overlay): avoid edit toolbar covering keys

[qiin2333]

改了啥呀

• 让自定义按键编辑工具栏变成浮层，根据当前选中/拖拽按键的位置在顶部和底部之间避让
• 拖拽时会识别当前按键以及同组按键的包围区域，底部快被挡住时就乖乖挪到顶部
• 保留原来的坐标体系，xPercent/yPercent、拖拽保存、吸附、微调、缩放都不再被工具栏高度影响，杂鱼遮挡状态退退退

为啥要改

底部常驻 edit bar 会挡住靠下的编辑区域。改坐标会牵连保存和布局语义，所以这次只让 bar 自己识别附近操作并避让。

验证

• git diff --check -- entry/src/main/ets/components/CustomKeyOverlay.ets
• DEVECO_SDK_HOME="/Applications/DevEco-Studio.app/Contents/sdk" JAVA_HOME="/Applications/DevEco-Studio.app/Contents/jbr/Contents/Home" PATH="/Applications/DevEco-Studio.app/Contents/jbr/Contents/Home/bin:$PATH" NODE_PATH="/Users/mac/Program/moonlight-harmony/node_modules:/Users/mac/Program/moonlight-harmony/hvigor/node_modules:/Applications/DevEco-Studio.app/Contents/tools/hvigor/hvigor/node_modules" node hvigorw.js assembleHap --mode module -p module=entry@default -p product=default --no-daemon

Summary by CodeRabbit

发布说明

• 改进
  • 编辑工具栏现在会智能躲避拖拽的按键区域。
  • 工具栏自动在顶部或底部显示，避免遮挡关键内容。
  • 打开属性、分享、配色等面板时，工具栏会自动隐藏。

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 40311adf-03a9-494b-87f7-0520d2b5cb9e

📥 Commits

Reviewing files that changed from the base of the PR and between ff1b196 and 8a35f98.

📒 Files selected for processing (1)

• entry/src/main/ets/components/CustomKeyOverlay.ets

📝 Walkthrough

Walkthrough

在 CustomKeyOverlay 中新增编辑工具栏拖拽避让能力：追踪当前拖拽键的 ID 与纵向位置，通过新增私有方法计算目标键视口位置后动态决定工具栏停靠顶部或底部，并将工具栏可见性与 Y 坐标改为方法调用；根布局同步从 Column 切换为 Stack。

Changes

编辑工具栏拖拽避让

Layer / File(s)	Summary
拖拽状态与工具栏位置计算方法 entry/src/main/ets/components/CustomKeyOverlay.ets	新增 activeDragKeyId、activeDragY 两个内部状态，以及私有方法组：isEditToolbarVisible()（面板打开时返回 false）、目标键聚合逻辑（拖拽键优先、按 groupId 合并）、视口顶底位置计算，和 getEditToolbarY() 根据目标键中点与视口中线的比较返回停靠 Y 坐标。
拖拽回调更新与工具栏渲染集成 entry/src/main/ets/components/CustomKeyOverlay.ets	根容器切换为 Stack()；onGroupDragMove 实时写入拖拽状态，onDragFinish 清空；工具栏条件渲染改为 isEditToolbarVisible()，并追加 .position({ x: 0, y: this.getEditToolbarY() }) 应用动态停靠。

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题准确概括了主要改动：通过动态重定位编辑工具栏来避免其遮挡键盘按键，与PR的核心目标完全对应。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/edit-toolbar-avoidance

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