feat: multimodal image clients, workspaces, Tushare skill, test fixes

- Replace monolithic image_message_client with HTTP/OCR/legacy modules; tighten OpenAI transport + tool schemas for multimodal downgrade to OCR specialist path.
- Add image/stock workspace prompts (META/SOUL/ROLE_SYSTEM); register experts; tweak specialist agent/direct loop/query_image_attachment.
- Add bundled runtime/skills/tushare-finance (references, api_client, SKILL metadata).
- Document OCR-related env vars; admin chat tweaks; README; weixin_install Ensure-OfficialPluginRuntimeDeps helper.
- Tests: multimodal downgrade + OCR coverage, strict tool pairing in attachment replay guard, workspace contract skips _internal/_system dirs, router/trace/prompt guards.

Co-authored-by: Cursor <cursoragent@cursor.com>

runtime/skills/tushare-finance/reference/接口文档/东方财富概念成分.md

@@ -0,0 +1,104 @@
+# 东方财富概念成分
+
+**文档ID**: 363
+**原始链接**: https://tushare.pro/document/2?doc_id=363
+
+---
+
+## 东方财富板块成分
+
+接口：dc_member描述：获取东方财富板块每日成分数据，可以根据概念板块代码和交易日期，获取历史成分限量：单次最大获取5000条数据，可以通过日期和代码循环获取权限：用户积累6000积分可调取，具体请参阅积分获取办法注意：本接口只限个人学习和研究使用，如需商业用途，请自行联系东方财富解决数据采购问题。
+
+输入参数
+
+<table>
+<thead>
+<tr>
+<th>名称</th>
+<th>类型</th>
+<th>必选</th>
+<th>描述</th>
+</tr>
+</thead>
+<tbody><tr>
+<td>ts_code</td>
+<td>str</td>
+<td>N</td>
+<td>板块指数代码</td>
+</tr>
+<tr>
+<td>con_code</td>
+<td>str</td>
+<td>N</td>
+<td>成分股票代码</td>
+</tr>
+<tr>
+<td>trade_date</td>
+<td>str</td>
+<td>N</td>
+<td>交易日期（YYYYMMDD格式）</td>
+</tr>
+</tbody></table>
+输出参数
+
+<table>
+<thead>
+<tr>
+<th>名称</th>
+<th>类型</th>
+<th>默认显示</th>
+<th>描述</th>
+</tr>
+</thead>
+<tbody><tr>
+<td>trade_date</td>
+<td>str</td>
+<td>Y</td>
+<td>交易日期</td>
+</tr>
+<tr>
+<td>ts_code</td>
+<td>str</td>
+<td>Y</td>
+<td>概念代码</td>
+</tr>
+<tr>
+<td>con_code</td>
+<td>str</td>
+<td>Y</td>
+<td>成分代码</td>
+</tr>
+<tr>
+<td>name</td>
+<td>str</td>
+<td>Y</td>
+<td>成分股名称</td>
+</tr>
+</tbody></table>
+接口示例
+
+```
+
+#获取东方财富2025年1月2日的人形机器人概念板块成分列表
+df = pro.dc_member(trade_date='20250102', ts_code='BK1184.DC')
+
+
+```
+
+数据示例
+
+```
+     trade_date  ts_code   con_code   name
+0    20250102  BK1184.DC  002117.SZ   东港股份
+1    20250102  BK1184.DC  603662.SH   柯力传感
+2    20250102  BK1184.DC  688165.SH  埃夫特-U
+3    20250102  BK1184.DC  300660.SZ   江苏雷利
+4    20250102  BK1184.DC  873593.BJ   鼎智科技
+..        ...        ...        ...    ...
+59   20250102  BK1184.DC  002139.SZ   拓邦股份
+60   20250102  BK1184.DC  301236.SZ   软通动力
+61   20250102  BK1184.DC  601727.SH   上海电气
+62   20250102  BK1184.DC  300432.SZ   富临精工
+63   20250102  BK1184.DC  300843.SZ   胜蓝股份
+
+```