Add chinese-divination: Plum Blossom divination Mini App

梅花易数起卦与解卦。时间、数字、铜钱摇卦、每日一卦四种起法，按体用生克、京房八宫、
纳支、旬空月破、爻之合刑等传统规则断吉凶，落到所问之事上给应期与宜忌；内置六十四卦
全文（卦辞、彖传、三百八十四条爻辞与小象传）与干支时辰历法。既能在页面起卦，也能由
Agent 经 MCP 端点在对话里主动起卦。

安全与边界：

- 全部计算在本机完成：不联网、不调模型、不 spawn 进程，不读包目录以外的任何文件
- 卦历存在 Host 分配的 dataDir，原子写入，上限 500 条；坏盘另存而非删除
- 请求只认回环 Host/Origin，挡住 DNS rebinding 与跨源读取；403 不回显请求方
- 日志只记错误码，不记 error.message——fs 报错会把绝对路径与系统用户名带出去

平台与验证：

- 三个平台（Windows / macOS / Linux）均已实跑：安装、经 Agent 打开、四个分区走通
- 路径审计 0 问题：可移植路径、Windows 保留名、UTF-8 无 BOM 无 CRLF、大小写、
  import 解析、最坏 dataDir 路径 112 字符（MAX_PATH 260 内）
- 228 项单元测试，在 UTC-8 到 UTC+14 四个时区与 C locale 下均为 228 通过 0 失败
- 冒烟脚本真起 start(context)，83 项覆盖页面、四种起法、卦历增删查、同秒 id 撞车、
  坏盘恢复、MCP 全路径与 dispose 幂等
- 尚未核对的一项：760px 断点以下的窄屏版式

Author: weekbin

README.md

@@ -64,6 +64,7 @@ The MiniMax Code Agent communicates through the host MCP client. Business reques
 | [Model Manager](plugins/ocoomber/openrouter-model-manager/) | Browse, search, and enable/disable models in your `~/.minimax/config.yaml` with instant save, bulk actions, one-click undo, and automatic backups | [ocoomber](https://github.com/ocoomber) |
 | [Self-drive Route Planner](plugins/hanzijie/self-drive-route-planner/) | **Official plugin** for planning driving routes with place search, route alternatives, demo mode, and Xiaohongshu 3:4 itinerary cards | [HanZijie](https://github.com/HanZijie) |
 | [Git Commit Tree](plugins/microbiosis/git-tree/) | Inspect a local Git repo's commit history with a swim-lane graph, branches/tags, commit detail, and per-file change stats; persisted filter preferences and optional auto-refresh | [Microbiosis](https://github.com/Microbiosis) |
+| [灵签易占 / Chinese Divination](plugins/weekbin/chinese-divination/) | Cast hexagrams with the Plum Blossom method (time, number, three-coin, or daily), read the result through the classical body/use rules, and browse all sixty-four hexagrams with a ganzhi almanac | [weekbin](https://github.com/weekbin) |
 
 <details>
 <summary>Preview: Token Usage Board</summary>

README.zh-CN.md

@@ -65,6 +65,7 @@ MiniMax Code Agent 通过宿主 MCP 客户端与 MiniApp 协作。业务请求
 | [模型管理器](plugins/ocoomber/openrouter-model-manager/README.zh-CN.md) | 浏览、搜索并启用/停用 `~/.minimax/config.yaml` 中的模型，支持即时保存、批量操作、一键撤销和自动备份 | [ocoomber](https://github.com/ocoomber) |
 | [自驾规划](plugins/hanzijie/self-drive-route-planner/README.zh-CN.md) | 【官方插件】规划自驾路线、地点搜索、候选算路与小红书 3:4 行程图；支持演示模式 | [HanZijie](https://github.com/HanZijie) |
 | [Git 提交树](plugins/microbiosis/git-tree/README.zh-CN.md) | 查看本机 Git 仓库的提交历史：泳道提交图、分支/标签、提交详情与文件改动统计，支持筛选偏好持久化与可选自动刷新 | [Microbiosis](https://github.com/Microbiosis) |
+| [灵签易占](plugins/weekbin/chinese-divination/README.zh-CN.md) | 梅花易数起卦与解卦：时间、数字、铜钱摇卦、每日一卦四法起卦，按体用生克断吉凶，另备六十四卦全文与干支历法 | [weekbin](https://github.com/weekbin) |
 
 <details>
 <summary>预览：Token 用量看板</summary>

plugins/weekbin/chinese-divination/.minimax-plugin/plugin.json

@@ -0,0 +1,14 @@
+{
+  "schemaVersion": 1,
+  "name": "chinese-divination",
+  "displayName": "灵签易占",
+  "version": "1.1.0",
+  "description": "梅花易数起卦与解卦：时间、数字、铜钱摇卦、每日一卦四种起法，问事定事类与应期，含体用生克断卦、六十四卦全文与干支时辰历法。既能打开页面起卦，也能在对话里由 Agent 主动调用。",
+  "author": "weekbin",
+  "icon": "icon.png",
+  "category": "Other",
+  "exampleQueries": ["打开灵签易占", "帮我起一卦", "帮我看看这份offer该不该接", "掷铜钱起一卦", "查一下今天黄历"],
+  "apps": [],
+  "mcpServers": ["servers.mcp.json"],
+  "skills": ["skills/divination/SKILL.md"]
+}

plugins/weekbin/chinese-divination/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 weekbin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.