feat: 下载路径自动转换 Windows/Linux 路径

- 后端 /status API 新增 platform 字段，返回 linux/windows
- 前端下载器设置页显示当前平台标识
- 添加「路径转换」按钮，一键在 /downloads/ 和 D:\ 之间切换

Author: AMYdd00

backend/src/module/api/program.py

@@ -1,6 +1,7 @@
 import logging
 import os
 import signal
+import sys
 
 from fastapi import APIRouter, Depends, HTTPException
 from fastapi.responses import JSONResponse
@@ -68,18 +69,14 @@ async def stop():
 
 @router.get("/status", response_model=dict, dependencies=[Depends(get_current_user)])
 async def program_status():
-    if not program.is_running:
-        return {
-            "status": False,
-            "version": VERSION,
-            "first_run": program.first_run,
-        }
-    else:
-        return {
-            "status": True,
-            "version": VERSION,
-            "first_run": program.first_run,
-        }
+    is_linux = sys.platform == "linux"
+    base = {
+        "status": program.is_running,
+        "version": VERSION,
+        "first_run": program.first_run,
+        "platform": "linux" if is_linux else "windows",
+    }
+    return base
 
 
 @router.get(

webui/src/api/program.ts

@@ -29,7 +29,7 @@ export const apiProgram = {
    * 状态
    */
   async status() {
-    const { data } = await axios.get<{ status: boolean; version: string }>(
+    const { data } = await axios.get<{ status: boolean; version: string; platform: string; first_run: boolean }>(
       'api/v1/status'
     );
 

webui/src/components/setting/config-download.vue

@@ -1,13 +1,42 @@
-<script lang="ts" setup>
+<script lang="ts" setup>
 import type { Downloader, DownloaderType } from '#/config';
 import type { SettingItem } from '#/components';
+import { ref, onMounted } from 'vue';
+import { apiProgram } from '@/api/program';
 
 const { t } = useMyI18n();
 const { getSettingGroup } = useConfigStore();
 
 const downloader = getSettingGroup('downloader');
 const downloaderType: DownloaderType = ['qbittorrent'];
 
+const platform = ref<string>('linux');
+
+onMounted(async () => {
+  try {
+    const status = await apiProgram.status();
+    platform.value = status.platform;
+  } catch {
+    platform.value = 'linux';
+  }
+});
+
+function convertPath() {
+  const current = downloader.path as string;
+  if (!current) return;
+  if (platform.value === 'linux') {
+    const winPath = current.replace(/^\/downloads\//, 'D:\\').replace(/\//g, '\\');
+    if (winPath !== current) {
+      downloader.path = winPath;
+    }
+  } else {
+    const linuxPath = current.replace(/^[A-Za-z]:\\/, '/downloads/').replace(/\\/g, '/');
+    if (linuxPath !== current) {
+      downloader.path = linuxPath;
+    }
+  }
+}
+
 const items: SettingItem<Downloader>[] = [
   {
     configKey: 'type',
@@ -72,6 +101,59 @@ const items: SettingItem<Downloader>[] = [
         v-bind="i"
         v-model:data="downloader[i.configKey]"
       ></ab-setting>
+      <div class="convert-bar">
+        <span class="convert-label">{{ $t('config.downloader_set.path') }}</span>
+        <div class="convert-actions">
+          <span class="platform-badge">{{ platform === 'linux' ? 'Linux/Docker' : 'Windows' }}</span>
+          <button class="convert-btn" @click="convertPath">
+            路径转换 &rarr;
+          </button>
+        </div>
+      </div>
     </div>
   </ab-fold-panel>
 </template>
+
+<style scoped>
+.convert-bar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 8px 12px;
+  background: var(--el-color-info-light-9);
+  border-radius: 6px;
+  font-size: 13px;
+  margin-top: 8px;
+}
+.convert-label {
+  color: var(--el-text-color-secondary);
+}
+.convert-actions {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+.platform-badge {
+  padding: 2px 8px;
+  border-radius: 4px;
+  background: var(--el-color-primary-light-9);
+  color: var(--el-color-primary);
+  font-size: 12px;
+  font-weight: 500;
+}
+.convert-btn {
+  padding: 4px 12px;
+  border: 1px solid var(--el-border-color);
+  border-radius: 4px;
+  background: var(--el-bg-color);
+  color: var(--el-text-color-primary);
+  cursor: pointer;
+  font-size: 12px;
+  transition: all 0.2s;
+}
+.convert-btn:hover {
+  background: var(--el-color-primary-light-9);
+  border-color: var(--el-color-primary);
+  color: var(--el-color-primary);
+}
+</style>