## Problem and outcome / 问题与结果
Windows App users can now choose whether to show the capture border. The same border owner handles source previews and active capture; unsupported or denied requests keep normal capture available. The source picker distinguishes an absent/incompatible App, unavailable capture capability, failed enumeration and a genuinely empty list. Chrome's pending local-access permission no longer holds optional Viewer reception.
This phase also reduces tooltip obstruction and contains a failed Linux encoder output within its own branch. Browser/server v23, Native control v9 and capture v7 remain compatible. Closes#401.
## Release notes
### 中文
这是一次分享体验更新，重点改进 Windows 采集边框、App 选源反馈和提示浮窗，并修复 Linux 采集输出的故障隔离。
- **采集边框可选。** Windows App 选源器新增「显示采集边框」，位于声音开关左侧，默认关闭。支持的系统上，来源预览也会隐藏边框。
- **找不到窗口时，提示更明确。** 区分 App 未连接、版本不兼容、采集不可用和读取失败；授权后可以刷新列表重试。改善 Chrome 首次访问时的观看连接，避免本机授权等待拖慢入座。
- **提示浮窗更顺手。** 统一 500 毫秒悬停延迟，减少对画面和控件的遮挡，改善触屏长按和关闭操作；只用于说明的控件使用普通鼠标光标。
- **Linux 分享更稳。** 修复单路编码输出失败可能连带中断其他输出的问题。
- **排查文档更完整。** 补充 App 来源列表、Windows 10 黄框及浏览器 WebRTC 设置的排查说明。
使用新的采集边框开关，请更新 Windows App 并刷新已打开的网页。Windows 10 没有对应的系统接口，边框仍由系统显示；文档中心提供可选处理方法。系统权限或其他采集会话也可能要求保留边框。
### English
This sharing update improves Windows capture borders, App source selection and tooltips, and fixes failure isolation between Linux capture outputs.
- **Choose whether to show the capture border.** The Windows App source picker adds a **Show capture border** switch to the left of audio, off by default. Source previews also hide the border on supported systems.
- **Clearer source-selection feedback.** The picker distinguishes an unavailable or incompatible App, unsupported capture and a failed source list. Refresh after granting access to retry. Pending local-access permission in Chrome no longer delays Browser reception for Viewers.
- **Less intrusive tooltips.** A consistent 500 ms hover delay, improved placement and touch-hold behavior make guidance easier to read and dismiss. Help-only controls use the ordinary cursor.
- **More resilient Linux sharing.** A failed encoder output no longer interrupts healthy sibling outputs.
- **More useful troubleshooting.** The documentation covers App source lists, Windows 10 capture borders and browser WebRTC settings.
Update the Windows App and refresh open pages to use the capture-border switch. Windows 10 lacks the corresponding system API and retains its system border; an optional procedure is available in the documentation center. System permission or another capture session may also require the border to remain visible.
## Verification / 验证
- `npm run check`: TypeScript, 998 tests and production Web build passed.
- `npm run check:go`: Go formatting/tests/vet/target builds and Windows native capture checks passed. macOS cgo builds require their native CI runner.
- Documentation, repository hygiene and website build passed.
- Real Chrome 152 profiles: first-use local permission, recovery after consent and source-list refresh; optional Viewer discovery before/after consent; App Local without cross-address-space consent.
- Public invitation gate: link creation, remote page and WebSocket access, App exit and link retirement passed.
- Windows 11 border on/off, source preview and concurrent-capture checks have physical evidence. Tooltip hover, keyboard, touch-hold, dismissal and narrow-layout checks passed.
- [Candidate CI](https://github.com/TNTcraftHIM/Piik/actions/runs/35157993032) passed at `1d159831`: Server/container, Windows/Linux/macOS packages, Go race checks and frontend validation. Publication was skipped.
- Local Windows ZIP passed packaged startup, capture probing, embedded Web, helper identity/notices and clean-shutdown checks.
- Windows H.264 and VP8 Host gates passed live/paused settings, background recovery, source replacement, source-end/restart, decoded Viewer frames and complete resource cleanup.
- Final `0b370e6a` differs from the CI candidate only in TODO/status closure. Full Web/Go/native checks and website build passed again. The access/privacy gate passed credential-leak and cleanup checks.
## Impact / 影响
Compatible feature update for **v1.5.0**. No wire or storage version change. Older Apps retain their existing capture behavior through capability negotiation. Publication and matching deployments follow the release workflow.
The independent Windows x86 experiment is excluded. Physical 32-bit Windows, macOS/Linux capture, unsupported Windows border control, and actual border-permission denial remain outside this candidate's acceptance evidence. The original missing-window, public-link timeout and URL-handler crash reports still need affected-machine diagnostics.
Waiting feedback and tooltips now share consistent presentation lifecycles, while App shutdown and native-media operation failures stay within their owning session or output. This phase also consolidates the project standards and publishes searchable English/Chinese reader documentation alongside the homepage.
Validation: repository hygiene and Markdown links; TypeScript, 971 Web tests and production build; website/documentation build; Go tests, vet and Windows/Linux builds with Windows capture checks; desktop/mobile UI and documentation review. Linux race, container and three-platform packaging checks run in the release pipeline. Physical macOS/Linux capture and broader network coverage remain outside this acceptance.
The owner approved v1.4.0 publication. Existing empty-source, Windows URL-handler and public-invitation timeout reports remain tracked; this release makes no claim to resolve those device/network reports. The Windows capture-border request is next-phase work.
## Release notes
### 中文
这是一次以稳定性和交互一致性为重点的功能更新。等待与提示更有反馈，App 启动、原生分享和连接恢复的边界处理得到改善，使用与部署指南也有了统一的文档中心。
#### 新增与改进
- 欢迎语、等待短句和六类可轮换的标签页标题共用一致的显示规则。等待短句从一开始就出现，并在停留时轮换；明确的错误与操作提示保持固定。
- 房间准入等漫画采用更克制的小人物与循环动效。改进 tooltip 的定位与指向，减少对播放器的遮挡；状态、图标和文案保持相同含义。
- 新增中英文文档中心，提供搜索、手机目录、使用教程、问题排查与自部署指南。官网 FAQ 聚焦开始使用前的问题，详细排查统一进入文档中心。
#### 修复
- 使用 `--local` 启动不再清空已保存的 Piik 站点地址。
- 打开系统浏览器不再阻塞 App 的退出流程；改进临时公网邀请、终端和诊断导出在关闭时的清理及错误反馈。
- 单条原生媒体连接的操作失败不再被误判为整个会话的协议错误；重复停止分享保持幂等。
- 修复连接替换、转发停止和异常退出时的部分资源清理问题，避免迟到结果影响当前连接。
- Windows 原生采集中，单个输出的编码错误只结束对应输出；共享采集源本身的错误仍会结束分享。
#### 升级与已知边界
本次保持现有协议版本与配置格式。更新 App 或自托管 Server 后，重新打开页面即可使用对应的新界面。
个别设备的空窗口列表、Windows 浏览器启动异常，以及 Linux 编码输出的故障隔离仍在跟进。macOS/Linux 的物理采集和更广泛的公网网络场景仍需实机验证；本次不宣称这些问题已经解决，也不承诺所有网络都能直连。
### English
This feature update focuses on stability and consistent feedback. Waiting states are easier to follow, App startup and native sharing handle several failure cases more reliably, and the new documentation center brings usage and deployment guides together.
#### New and improved
- Welcome lines, waiting captions and six groups of rotating tab titles follow one presentation lifecycle. Waiting captions appear immediately and rotate while visible; actionable errors and instructions remain fixed.
- Room-admission comics use restrained characters and looping motion. Tooltips point more accurately to their controls and interfere less with the player, with consistent meanings across illustrations, icons and copy.
- A new English/Chinese documentation center includes search, mobile navigation, usage guides, troubleshooting and self-hosting. The homepage FAQ covers questions before getting started and links to the documentation for detailed help.
#### Fixes
- Starting with `--local` no longer clears a saved Piik site address.
- Opening the system browser no longer blocks App shutdown. Temporary public invitations, the terminal and diagnostic exports handle cleanup and exit errors more consistently.
- An operation failure on one native media connection no longer becomes a protocol failure for the entire session. Repeated stop-sharing requests are safe.
- Fixed cleanup cases during connection replacement, relay shutdown and unexpected exits, preventing late results from affecting the current connection.
- On Windows, an encoder failure for one native output stops that output only. A failure of the shared capture source still ends sharing.
#### Updating and known limits
Protocol versions and configuration formats are unchanged. After updating the App or your self-hosted Server, reopen the page to use its updated interface.
Empty source lists on some devices, Windows browser-launch failures and Linux output-failure isolation remain under investigation. Physical macOS/Linux capture and broader public-network coverage still need device testing; this update does not claim to resolve those cases or guarantee a direct connection on every network.
Rename the active product, Go module, binaries, configuration, protocols and documentation to Piik while retaining the TV mascot and existing media/room behavior.
Use one current private contract without old-name aliases. Preserve SQLite authority and copy compatible local settings once; other settings start fresh. Git-message cleanup and the infrastructure name cutover are coordinated with this phase, with original history and deployment data archived externally.
Validated locally with Web and Go checks, Windows capture compilation, matched Client/Server builds, packaged Client control handshake and history-rewrite integrity checks. Skip duplicate hosted CI for this owner-authorized local release.
[skip ci]
Embed STUN and SFU in the shared Go process, reuse native encoding pipelines with independent adaptation, and complete Client lifecycle, settings, diagnostics and packaging fixes. Retain standard Browser senders after measured encoded-reuse limitations.
AAA