perf(strm): 优化 OpenList 元数据下载速度 (#15)

* Add favourite buttons to library list and series detail pages

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* Fix favourites list for remote Emby mounted media

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* Route favourites to library series detail when appropriate

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* Fix favourites link to library series for remote anime paths

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* Fix remote Emby playback history and continue watching

- Preserve duration_ms when web player reports duration=0
- Add GET /playback/:id/resume for reliable per-item resume
- Switch home continue watching to /watch-history/continue API
- Set library_id on remote media for play-profile visibility
- Keep continue-watching rows when remote metadata hydration fails

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* Fix mobile sort dropdown overflowing off-screen

Align dropdown to button left edge on small screens and cap width
to viewport so sort options stay fully visible on mobile.

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* Remove stale Windows binary backup files

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* Fix STRM account edit form not echoing saved config

Return config_preview from account API for server/url/username and
secret flags. Merge partial config updates so empty password/token
fields do not wipe stored credentials.

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* perf(strm): speed up OpenList metadata downloads with provider-aware concurrency

- Split download semaphore: 115 stays capped at 3 for WAF safety; OpenList/CloudDrive2
  WebDAV metadata uses strm.download_threads (default raised to 6, max 16)
- Scope 115 WAF cooldown to 115 tasks only so OpenList downloads are not paused
- Requeue claimed tasks back to pending when slot acquisition fails or 115 is cooling
- Add tests for separate semaphores and requeue behavior

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: truewhile <truewhile@users.noreply.github.com>

web/src/pages/HomePage.tsx

@@ -1,7 +1,8 @@
 import { useEffect, useMemo, useState } from 'react'
 
 import { libraryAPI, type LibraryWithPreview } from '../api/library'
-import { playbackAPI, type HistoryItem } from '../api/playback'
+import { historyAPI } from '../api/history'
+import type { HistoryItem } from '../api/playback'
 import type { Library, Media } from '../types'
 import type { SeriesCard } from '../utils/groupSeries'
 import {
@@ -33,15 +34,24 @@ export function HomePage() {
             .list({ withPreview: true, previewLimit: 20 })
             .then((rows) => asArray<LibraryWithPreview>(rows))
             .catch(() => [] as LibraryWithPreview[]),
-          playbackAPI
-            .recentHistory()
-            .then((rows) => asArray<HistoryItem>(rows))
+          historyAPI
+            .continueWatching(12)
+            .then((rows) =>
+              rows.map(
+                (row): HistoryItem => ({
+                  ...row.history,
+                  created_at: '',
+                  updated_at: '',
+                  media: row.media,
+                }),
+              ),
+            )
             .catch(() => [] as HistoryItem[]),
         ])
 
         if (cancelled) return
         setLibraries(libs)
-        setHistory(hist.filter((h) => h && !h.completed && !!h.media))
+        setHistory(hist.filter((h) => h && !h.completed))
 
         const mapData: Record<string, { cards: SeriesCard[]; items: Media[]; total: number }> = {}
         for (const lib of libs) {