feat(config): Add PWA manifest.json endpoint for web app installation

[Suyunmeng]

Resolve the path and content issues of manifest.json when deploying in sub-directories to ensure that the PWA function works properly in all deployment scenarios while maintaining compatibility with existing CDN mechanisms.

[xrgzs]

存在问题，直接panic，貌似是路由冲突

Microsoft Windows [版本 10.0.19045.2006]
(c) Microsoft Corporation。保留所有权利。

C:\Users\Admin\Desktop\openlist_a4646d8_windows-amd64>openlist.exe server
INFO[2025-08-06 17:36:42] reading config file: C:\Users\Admin\Desktop\openlist_a4646d8_windows-amd64\data\config.json
INFO[2025-08-06 17:36:42] max buffer limit: 213909504
INFO[2025-08-06 17:36:42] load config from env with prefix: OPENLIST_
INFO[2025-08-06 17:36:42] init logrus...
panic: catch-all wildcard '*filepath' in new path '/static/*filepath' conflicts with existing path segment 'manifest.json' in existing prefix 'atic/manifest.json'

goroutine 1 [running]:
github.com/gin-gonic/gin.(*node).insertChild(0xc0007d20e0?, {0xc000845280?, 0xc0004974c0?}, {0xc000845278, 0x11}, {0xc0008ce210, 0x6, 0x6})
        /go/pkg/mod/github.com/gin-gonic/gin@v1.10.1/tree.go:358 +0xbc5
github.com/gin-gonic/gin.(*node).addRoute(0x2cad864?, {0xc000845278, 0x11}, {0xc0008ce210, 0x6, 0x6})
        /go/pkg/mod/github.com/gin-gonic/gin@v1.10.1/tree.go:254 +0x9bf
github.com/gin-gonic/gin.(*Engine).addRoute(0xc0004d1860, {0x2cad864, 0x3}, {0xc000845278, 0x11}, {0xc0008ce210, 0x6, 0x6})
        /go/pkg/mod/github.com/gin-gonic/gin@v1.10.1/gin.go:352 +0x252
github.com/gin-gonic/gin.(*RouterGroup).handle(0xc00083a040, {0x2cad864, 0x3}, {0xc000845218?, 0xc0008412d0?}, {0xc000584da8, 0x1, 0xc0000ccdc0?})
        /go/pkg/mod/github.com/gin-gonic/gin@v1.10.1/routergroup.go:89 +0x13e
github.com/gin-gonic/gin.(*RouterGroup).GET(...)
        /go/pkg/mod/github.com/gin-gonic/gin@v1.10.1/routergroup.go:117
github.com/gin-gonic/gin.(*RouterGroup).StaticFS(0xc00083a040, {0xc000925670, 0x8}, {0x6ff0100, 0xc0008412d0})
        /go/pkg/mod/github.com/gin-gonic/gin@v1.10.1/routergroup.go:211 +0x16d
github.com/OpenListTeam/OpenList/v4/server/static.Static(0xc00083a040, 0xc0004979b0)
        /source/server/static/static.go:134 +0x3b1
github.com/OpenListTeam/OpenList/v4/server.Init(0xc0004d1860)
        /source/server/router.go:101 +0x1439
github.com/OpenListTeam/OpenList/v4/cmd.init.func10(0xc000786e00?, {0x2cae9ad?, 0x4?, 0x2cae971?})
        /source/cmd/server.go:60 +0x272
github.com/spf13/cobra.(*Command).execute(0x25a5a80, {0x85e64a0, 0x0, 0x0})
        /go/pkg/mod/github.com/spf13/cobra@v1.9.1/command.go:1019 +0xa7b
github.com/spf13/cobra.(*Command).ExecuteC(0x25a57c0)
        /go/pkg/mod/github.com/spf13/cobra@v1.9.1/command.go:1148 +0x40c
github.com/spf13/cobra.(*Command).Execute(...)
        /go/pkg/mod/github.com/spf13/cobra@v1.9.1/command.go:1071
github.com/OpenListTeam/OpenList/v4/cmd.Execute()
        /source/cmd/root.go:23 +0x1a
main.main()
        /source/main.go:6 +0xf

C:\Users\Admin\Desktop\openlist_a4646d8_windows-amd64>openlist.exe version
Built At: 8/6/2025, 9:05:54 AM
Go Version: go1.24.1 windows/amd64
Author: The OpenList Projects Contributors <noreply@openlist.team>
Commit ID: a4646d8d39073abe8c4c8671cec445865b381478
Version: refs/pull/990/merge
WebVersion: rolling

[Suyunmeng]

还有新变更，暂不合并

[Suyunmeng]

已无新变更。@xrgzs 再看一下有没有问题

[xrgzs]

还是得去前端改掉路径，不然这个manifest 的 link 被 vite-plugin-dynamic-base 给一起处理了，应该让它跟 logo 一样

试了下，删了 /public/static/manifest.json 再打包，就不会被 vite-plugin-dynamic-base 处理

路由还是恢复成之前那样注册到 /manifest.json，不要动 /static/

[xrgzs]

LGTM