fix: prevent floating buttons from jumping during page transitions

[KBVsent]

When switching between config sub-pages , the three floating action buttons in the bottom-right corner momentarily jump to the upper part of the page before returning to their correct position. This creates a jarring visual experience for users.

The root cause is that the buttons were placed inside a v-slide-y-transition component, causing them to animate along with the page content during transitions.

Modifications / 改动点

• dashboard/src/views/ConfigPage.vue: Move the three floating buttons outside of v-slide-y-transition and wrap them in <template v-if> to maintain the same visibility condition without being affected by transition animations.

• This is NOT a breaking change. / 这不是一个破坏性变更。

Screenshots or Test Results / 运行截图或测试结果

Before	After

---

Checklist / 检查清单

• 😊 If there are new features added in the PR, I have discussed it with the authors through issues/emails, etc.
  / 如果 PR 中有新加入的功能，已经通过 Issue / 邮件等方式和作者讨论过。

• 👀 My changes have been well-tested, and "Verification Steps" and "Screenshots" have been provided above.
  / 我的更改经过了良好的测试，并已在上方提供了“验证步骤”和“运行截图”。

• 🤓 I have ensured that no new dependencies are introduced, OR if new dependencies are introduced, they have been added to the appropriate locations in requirements.txt and pyproject.toml.
  / 我确保没有引入新依赖库，或者引入了新依赖库的同时将其添加到 requirements.txt 和 pyproject.toml 文件相应位置。

• 😮 My changes do not introduce malicious code.
  / 我的更改没有引入恶意代码。

Summary by Sourcery

Bug Fixes:

• Prevent floating action buttons from visually jumping during config sub-page transitions by decoupling them from the slide transition animation.

[sourcery-ai]

Hey - I've found 1 issue, and left some high level feedback:

• The visibility condition (selectedConfigID || isSystemConfig) && fetched is now duplicated in both the v-slide-y-transition content and the surrounding <template>; consider extracting this into a computed property or a single wrapper element to avoid divergence in future changes.
• The three floating buttons all use inline style="position: fixed; right: 52px; bottom: ...px;"; moving these styles into a dedicated class (e.g., a small FAB stack component or utility classes) would make layout adjustments easier and reduce repetition.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- The visibility condition `(selectedConfigID || isSystemConfig) && fetched` is now duplicated in both the `v-slide-y-transition` content and the surrounding `<template>`; consider extracting this into a computed property or a single wrapper element to avoid divergence in future changes.
- The three floating buttons all use inline `style="position: fixed; right: 52px; bottom: ...px;"`; moving these styles into a dedicated class (e.g., a small FAB stack component or utility classes) would make layout adjustments easier and reduce repetition.

## Individual Comments

### Comment 1
<location path="dashboard/src/views/ConfigPage.vue" line_range="69" />
<code_context>
-            </template>
-          </v-tooltip>
-
-          <v-tooltip text="测试当前配置" location="left" v-if="!isSystemConfig">
-            <template v-slot:activator="{ props }">
-              <v-btn v-bind="props" icon="mdi-chat-processing" size="x-large" 
</code_context>
<issue_to_address>
**suggestion:** Align the hard-coded tooltip text with the existing i18n usage.

Other tooltips use `tm(...)` for translated strings, but this one hardcodes `"测试当前配置"`. Please switch to the same i18n mechanism here (e.g. `:text="tm('config.testCurrent')"`) to keep localization consistent.

Suggested implementation:

```
          <v-tooltip :text="tm('config.testCurrent')" location="left" v-if="!isSystemConfig">

```

If `tm` is not yet available in the `<script setup>` (or equivalent) section of this component, ensure it is imported or injected in the same way as in nearby tooltip usages you referenced (e.g. via `const { tm } = useI18n()` or similar) so that `tm('config.testCurrent')` works correctly.
</issue_to_address>

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[gemini-code-assist]

Code Review

This pull request refactors ConfigPage.vue by moving floating action buttons outside the transition block to avoid unnecessary UI animations. Feedback was provided regarding a hardcoded string that should be localized using the existing i18n framework for consistency.