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/中信行业指数日行情.md

@@ -0,0 +1,154 @@
+# 中信行业指数日行情
+
+**文档ID**: 308
+**原始链接**: https://tushare.pro/document/2?doc_id=308
+
+---
+
+## 中信行业指数行情
+
+接口：ci_daily描述：获取中信行业指数日线行情限量：单次最大4000条，可循环提取积分：5000积分可调取，可通过指数代码和日期参数循环获取所有数据
+
+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>行业代码</td>
+</tr>
+<tr>
+<td>trade_date</td>
+<td>str</td>
+<td>N</td>
+<td>交易日期（YYYYMMDD格式，下同）</td>
+</tr>
+<tr>
+<td>start_date</td>
+<td>str</td>
+<td>N</td>
+<td>开始日期</td>
+</tr>
+<tr>
+<td>end_date</td>
+<td>str</td>
+<td>N</td>
+<td>结束日期</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>trade_date</td>
+<td>str</td>
+<td>Y</td>
+<td>交易日期</td>
+</tr>
+<tr>
+<td>open</td>
+<td>float</td>
+<td>Y</td>
+<td>开盘点位</td>
+</tr>
+<tr>
+<td>low</td>
+<td>float</td>
+<td>Y</td>
+<td>最低点位</td>
+</tr>
+<tr>
+<td>high</td>
+<td>float</td>
+<td>Y</td>
+<td>最高点位</td>
+</tr>
+<tr>
+<td>close</td>
+<td>float</td>
+<td>Y</td>
+<td>收盘点位</td>
+</tr>
+<tr>
+<td>pre_close</td>
+<td>float</td>
+<td>Y</td>
+<td>昨日收盘点位</td>
+</tr>
+<tr>
+<td>change</td>
+<td>float</td>
+<td>Y</td>
+<td>涨跌点位</td>
+</tr>
+<tr>
+<td>pct_change</td>
+<td>float</td>
+<td>Y</td>
+<td>涨跌幅</td>
+</tr>
+<tr>
+<td>vol</td>
+<td>float</td>
+<td>Y</td>
+<td>成交量（万股）</td>
+</tr>
+<tr>
+<td>amount</td>
+<td>float</td>
+<td>Y</td>
+<td>成交额（万元）</td>
+</tr>
+</tbody></table>
+接口示例
+
+```
+
+pro = ts.pro_api('your token')
+
+df = pro.ci_daily(trade_date='20230705', fields='ts_code,trade_date,open,low,high,close')
+
+```
+
+数据示例
+
+```
+       ts_code   trade_date       open        low       high      close
+0    CI005001.CI   20230705  2757.5662  2736.8198  2764.1863  2754.2617
+1    CI005002.CI   20230705  3006.7166  3000.1382  3039.3916  3029.7837
+2    CI005003.CI   20230705  6443.6250  6431.1250  6597.5933  6588.1401
+3    CI005004.CI   20230705  2675.3940  2672.7278  2693.6438  2676.9941
+4    CI005005.CI   20230705  1575.1489  1571.6997  1597.4792  1593.6205
+..           ...        ...        ...        ...        ...        ...
+435  CI005920.CI   20230705  6585.6924  6521.1846  6599.1216  6529.9458
+436  CI005921.CI   20230705  2759.9133  2753.9324  2781.3979  2757.9863
+437  CI005922.CI   20230705  5690.3843  5645.3955  5690.4165  5652.8184
+438  CI005923.CI   20230705  5855.1333  5808.8325  5855.1470  5816.7471
+439  CI005924.CI   20230705  5782.8662  5737.0601  5782.8984  5744.5962
+
+[440 rows x 6 columns]
+
+```