重构：Wails v3 迁移 + 前端目录规范化 + Sidebar滚动优化

- web/ → frontend/ 目录重命名（Wails v3 标准结构）
- main.go: Middleware 修复 custom.js 404 + DevTools 延迟启动
- Sidebar: 收藏夹内部独立滚动 + 帮助区块固定底部
- useFavorites.ts: longPressTimer const→let 修复 TypeError
- App.vue: Arco Tabs padding-top 覆盖
- build: config.yml / Taskfile.yml 对齐官方模板，devtools build tag
- 新增 v3 bindings、vite.config.js、跨平台构建配置

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

go.mod

@@ -1,67 +1,82 @@
 module u-desk
 
-go 1.25.6
+go 1.26
 
 require (
-	github.com/chromedp/cdproto v0.0.0-20250724212937-08a3db8b4327
-	github.com/chromedp/chromedp v0.14.2
+	github.com/chromedp/cdproto v0.0.0-20260427013145-5737772c319b
+	github.com/chromedp/chromedp v0.15.1
 	github.com/glebarez/sqlite v1.11.0
-	github.com/labstack/echo/v4 v4.15.0
+	github.com/labstack/echo/v4 v4.15.1
 	github.com/shirou/gopsutil/v3 v3.24.5
-	github.com/wailsapp/wails/v2 v2.12.0
-	github.com/yuin/goldmark v1.8.2
-	golang.org/x/sys v0.40.0
+	github.com/wailsapp/wails/v3 v3.0.0-alpha.80
+	github.com/yuin/goldmark v1.7.16
+	golang.org/x/sys v0.42.0
 	gopkg.in/yaml.v3 v3.0.1
 	gorm.io/gorm v1.31.1
 )
 
 require (
-	git.sr.ht/~jackmordaunt/go-toast/v2 v2.0.3 // indirect
+	dario.cat/mergo v1.0.2 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/ProtonMail/go-crypto v1.3.0 // indirect
+	github.com/adrg/xdg v0.5.3 // indirect
 	github.com/bep/debounce v1.2.1 // indirect
 	github.com/chromedp/sysutil v1.1.0 // indirect
+	github.com/cloudflare/circl v1.6.3 // indirect
+	github.com/coder/websocket v1.8.14 // indirect
+	github.com/cyphar/filepath-securejoin v0.6.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/glebarez/go-sqlite v1.22.0 // indirect
-	github.com/go-json-experiment/json v0.0.0-20250725192818-e39067aee2d2 // indirect
+	github.com/ebitengine/purego v0.9.1 // indirect
+	github.com/emirpasic/gods v1.18.1 // indirect
+	github.com/glebarez/go-sqlite v1.21.2 // indirect
+	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
+	github.com/go-git/go-billy/v5 v5.7.0 // indirect
+	github.com/go-git/go-git/v5 v5.16.4 // indirect
+	github.com/go-json-experiment/json v0.0.0-20260214004413-d219187c3433 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/gobwas/httphead v0.1.0 // indirect
 	github.com/gobwas/pool v0.2.1 // indirect
 	github.com/gobwas/ws v1.4.0 // indirect
 	github.com/godbus/dbus/v5 v5.2.2 // indirect
+	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/gorilla/websocket v1.5.3 // indirect
+	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/jchv/go-winloader v0.0.0-20250406163304-c1995be93bd1 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/kevinburke/ssh_config v1.4.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/leaanthony/go-ansi-parser v1.6.1 // indirect
-	github.com/leaanthony/gosod v1.0.4 // indirect
-	github.com/leaanthony/slicer v1.6.0 // indirect
 	github.com/leaanthony/u v1.1.1 // indirect
-	github.com/lufia/plan9stats v0.0.0-20251013123823-9fd1530e3ec3 // indirect
+	github.com/lmittmann/tint v1.1.2 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/pjbgf/sha1cd v0.5.0 // indirect
 	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
-	github.com/pkg/errors v0.9.1 // indirect
-	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/samber/lo v1.52.0 // indirect
-	github.com/shoenig/go-m1cpu v0.1.7 // indirect
-	github.com/tklauser/go-sysconf v0.3.16 // indirect
-	github.com/tklauser/numcpus v0.11.0 // indirect
-	github.com/tkrajina/go-reflector v0.5.8 // indirect
+	github.com/sergi/go-diff v1.4.0 // indirect
+	github.com/shoenig/go-m1cpu v0.1.6 // indirect
+	github.com/skeema/knownhosts v1.3.2 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
 	github.com/wailsapp/go-webview2 v1.0.23 // indirect
-	github.com/wailsapp/mimetype v1.4.1 // indirect
+	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	golang.org/x/crypto v0.47.0 // indirect
 	golang.org/x/exp v0.0.0-20260112195511-716be5621a96 // indirect
 	golang.org/x/net v0.49.0 // indirect
 	golang.org/x/text v0.33.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
-	modernc.org/libc v1.67.7 // indirect
+	gopkg.in/warnings.v0 v0.1.2 // indirect
+	modernc.org/libc v1.67.6 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect
 	modernc.org/sqlite v1.44.3 // indirect