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/通达信板块成分.md

@@ -0,0 +1,98 @@
+# 通达信板块成分
+
+**文档ID**: 377
+**原始链接**: https://tushare.pro/document/2?doc_id=377
+
+---
+
+## 通达信板块成分
+
+接口：tdx_member描述：获取通达信各板块成分股信息限量：单次最大3000条数据，可以根据日期和板块代码循环提取权限：用户积累6000积分可调取，具体请参阅积分获取办法
+
+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>板块代码：xxxxxx.TDX</td>
+</tr>
+<tr>
+<td>trade_date</td>
+<td>str</td>
+<td>N</td>
+<td>交易日期：格式YYYYMMDD</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>板块代码</td>
+</tr>
+<tr>
+<td>trade_date</td>
+<td>str</td>
+<td>Y</td>
+<td>交易日期</td>
+</tr>
+<tr>
+<td>con_code</td>
+<td>str</td>
+<td>Y</td>
+<td>成分股票代码</td>
+</tr>
+<tr>
+<td>con_name</td>
+<td>str</td>
+<td>Y</td>
+<td>成分股票名称</td>
+</tr>
+</tbody></table>
+接口示例
+
+```
+
+#获取通达信板块2025年5月13日的航运概念板块成分股
+df = pro.tdx_member(trade_date='20250513', ts_code='880728.TDX')
+
+
+```
+
+数据示例
+
+```
+       ts_code trade_date   con_code     con_name
+0   880728.TDX   20250513  000039.SZ     中集集团
+1   880728.TDX   20250513  000088.SZ    盐 田 港
+2   880728.TDX   20250513  000507.SZ      珠海港
+3   880728.TDX   20250513  000520.SZ     凤凰航运
+4   880728.TDX   20250513  000582.SZ     北部湾港
+..         ...        ...        ...      ...
+59  880728.TDX   20250513  603869.SH     ST智知
+60  880728.TDX   20250513  603967.SH     中创物流
+61  880728.TDX   20250513  605090.SH     九丰能源
+62  880728.TDX   20250513  833171.BJ     国航远洋
+63  880728.TDX   20250513  872351.BJ     华光源海
+
+```