fb5-patch-pkg: docs for the update package — README「方式一」gets the third bullet (Stronghold-Protocol-v<版本>-update.zip from 0.2.1: only the files changed since the earlier 0.2.x, for a full or lite 0.2.x install; stop the server, merge the zip's Stronghold-Protocol folder into the install, start; a mismatched install is refused) and the English summary a clause; DEPLOY §1.5 the bundle update (Expand-Archive / Explorer / unzip -o, not a Finder drag; what the first start does, the refusal, docs-only warnings, lite installs and local art, doctor's row) with the old copy-to-a-new-folder way kept; DEPLOY §7 the maintainer side (--update --from every earlier 0.2.x full zip, MANIFEST.json in every zip, the checks, --keep-stage); ARCHITECTURE names server/update.js and tools/package-update.mjs

README.md

@@ -62,10 +62,11 @@ English summary: [below](#english).
 
 ### 方式一：整合包（推荐）
 
-[Releases](../../releases/latest) 里有两种整合包，代码和运行依赖完全相同，二选一：
+[Releases](../../releases/latest) 里有两种整合包，代码和运行依赖完全相同，二选一；已经装好 0.2.x 的，升级时只下载更新包即可：
 
 - **完整包** `Stronghold-Protocol-v<版本>.zip`（约 430 MB，解压后约 625 MB）：附带全部美术 / 音频（含官方 3D 棋盘贴图），解压就能玩，不需要再下载任何东西。**推荐。**
 - **精简包** `Stronghold-Protocol-v<版本>-lite.zip`（约 22 MB）：不带素材，第一次启动时自动从公开镜像下载美术、Spine 模型、音频、字体、表情和「玩法说明」教程图（约 460 MB，可中断，再次启动会续传）；官方 3D 棋盘等本地客户端素材不在其中（见下面的「本地客户端素材」）。适合下载大文件不方便的情况。
+- **更新包** `Stronghold-Protocol-v<版本>-update.zip`（0.2.1 起提供，大小看改动多少，通常只有几 MB）：只含比之前的 0.2.x 版本改动过的文件，用来把已经装好的 0.2.x（完整包或精简包装的都行）升级到新版本，不用重新下载整个包。用法：先停止服务器（关掉窗口；装了开机自启的运行 `scripts\install-service-windows.ps1 -Stop`），把 zip 里 `Stronghold-Protocol` 文件夹的全部内容合并到安装文件夹、覆盖同名文件（Windows 资源管理器里复制粘贴即可；macOS 不要用访达拖放，它会整个替换文件夹，请用 `unzip -o`，见 [docs/DEPLOY.md](docs/DEPLOY.md) 第 1.5 节），再照常启动。启动时会先核对全部程序文件、删除新版本不再用的旧文件，然后正常运行；如果这个文件夹不是更新包对应的版本（例如 0.1.x，或者程序文件被改过），会提示下载完整包，服务器不启动。全新安装请用完整包或精简包。
 
 两种包都只含运行和部署需要的文件（服务器、客户端、数据、启动脚本、setup / doctor / 素材下载工具、许可证与说明、[docs/PLAYING.md](docs/PLAYING.md) 和 [docs/DEPLOY.md](docs/DEPLOY.md)）；测试、开发工具和设计文档只在源码仓库里。
 
@@ -245,7 +246,7 @@ GOLDEN_FULL=1 node --test test/golden.test.js           # 黄金结果：固定
 
 An **unofficial, non-commercial fan remake** of Arknights' seasonal auto-chess tower-defense mode *Stronghold Protocol: Alliance*, played in the browser: solo, or 1–4 player co-op (AI teammates can fill seats). Combat is simulated in each player's browser, so a low-power PC can host.
 
-- **Run:** download the full bundle `Stronghold-Protocol-v<version>.zip` (~430 MB, all the art inside) from [Releases](../../releases/latest) — or the lite one, `…-lite.zip` (~22 MB), which downloads the art (~460 MB) on its first start — install Node.js 22 or 24, then double-click `scripts\start-windows.bat` (Windows) or run `./scripts/start.sh` (macOS / Linux) and open <http://localhost:3000>. From source: `npm install && npm run setup && npm start` (setup downloads ~460 MB of art from public mirrors, the emotes and the how-to-play pages included; the official 3D board, some official HUD icons, two enemy models and 39 summon models are extracted from a local Arknights client — without one the game uses the 2D board and look-alike stand-ins (the summons show their avatars), and a server can copy `public/assets/local/` and `data/local-assets.json` from the full bundle of the same version).
+- **Run:** download the full bundle `Stronghold-Protocol-v<version>.zip` (~430 MB, all the art inside) from [Releases](../../releases/latest) — or the lite one, `…-lite.zip` (~22 MB), which downloads the art (~460 MB) on its first start; from 0.2.1 on, `…-update.zip` holds only the files changed since the earlier 0.2.x releases: stop the server, extract it over an existing 0.2.x folder and start again (the first start deletes the files the new version dropped and verifies the install) — install Node.js 22 or 24, then double-click `scripts\start-windows.bat` (Windows) or run `./scripts/start.sh` (macOS / Linux) and open <http://localhost:3000>. From source: `npm install && npm run setup && npm start` (setup downloads ~460 MB of art from public mirrors, the emotes and the how-to-play pages included; the official 3D board, some official HUD icons, two enemy models and 39 summon models are extracted from a local Arknights client — without one the game uses the 2D board and look-alike stand-ins (the summons show their avatars), and a server can copy `public/assets/local/` and `data/local-assets.json` from the full bundle of the same version).
 - **Play with friends:** create a co-op room and share the 4-letter key or the `?room=KEY` link. On a LAN, use the address printed at start; otherwise use a virtual-LAN tool, a tunnel or a VPS — see [docs/DEPLOY.md](docs/DEPLOY.md).
 - **Disclaimer:** not affiliated with or endorsed by Hypergryph or Yostar. All Arknights names, art, audio, text and data are © their respective owners and are **not** covered by this project's GPL licence. For study and personal non-commercial use only — no selling, paid distribution, paid servers or monetisation of any kind. Content will be removed on request of the rights holders. Provided "as is", without warranty.
 - **License:** code GPL-3.0-or-later ([LICENSE](LICENSE)); game assets excluded.