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/同花顺行业概念成分.md

@@ -0,0 +1,121 @@
+# 同花顺行业概念成分
+
+**文档ID**: 261
+**原始链接**: https://tushare.pro/document/2?doc_id=261
+
+---
+
+## 同花顺概念板块成分
+
+接口：ths_member描述：获取同花顺概念板块成分列表注：数据版权归属同花顺，如做商业用途，请主动联系同花顺。限量：用户积累6000积分可调取，每分钟可调取200次，可按概念板块代码循环提取所有成分
+
+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>股票代码</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>ts_code</td>
+<td>str</td>
+<td>Y</td>
+<td>指数代码</td>
+</tr>
+<tr>
+<td>con_code</td>
+<td>str</td>
+<td>Y</td>
+<td>股票代码</td>
+</tr>
+<tr>
+<td>con_name</td>
+<td>str</td>
+<td>Y</td>
+<td>股票名称</td>
+</tr>
+<tr>
+<td>weight</td>
+<td>float</td>
+<td>N</td>
+<td>权重(暂无)</td>
+</tr>
+<tr>
+<td>in_date</td>
+<td>str</td>
+<td>N</td>
+<td>纳入日期(暂无)</td>
+</tr>
+<tr>
+<td>out_date</td>
+<td>str</td>
+<td>N</td>
+<td>剔除日期(暂无)</td>
+</tr>
+<tr>
+<td>is_new</td>
+<td>str</td>
+<td>N</td>
+<td>是否最新Y是N否</td>
+</tr>
+</tbody>
+</table>
+接口示例
+
+```
+pro = ts.pro_api()
+
+df = pro.ths_member(ts_code='885800.TI')
+
+```
+
+数据样例
+
+```
+  ts_code         con_code     con_name
+0   885800.TI  000016.SZ  深康佳A
+1   885800.TI  000049.SZ  德赛电池
+2   885800.TI  002008.SZ  大族激光
+3   885800.TI  002036.SZ  联创电子
+4   885800.TI  002055.SZ  得润电子
+..        ...        ...   ...
+87  885800.TI  688127.SH  蓝特光学
+88  885800.TI  688157.SH  松井股份
+89  885800.TI  688286.SH  敏芯股份
+90  885800.TI  688312.SH  燕麦科技
+91  885800.TI  688386.SH  泛亚微透
+
+[92 rows x 3 columns]
+
+```