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/实时分钟行情.md

@@ -0,0 +1,182 @@
+# 实时分钟行情
+
+**文档ID**: 340
+**原始链接**: https://tushare.pro/document/2?doc_id=340
+
+---
+
+## 期货实时分钟行情
+
+接口：rt_fut_min描述：获取全市场期货合约实时分钟数据，支持1min/5min/15min/30min/60min行情，提供Python SDK、 http Restful API和websocket三种方式，如果需要主力合约分钟，请先通过主力mapping接口获取对应的合约代码后提取分钟。限量：每分钟可以请求500次，支持多个合约同时提取权限：需单独开权限，正式权限请参阅权限说明。
+
+rt_fut_min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>Y</td>
+<td>股票代码，e.g.CU2310.SHF，支持多个合约（逗号分隔）</td>
+</tr>
+<tr>
+<td>freq</td>
+<td>str</td>
+<td>Y</td>
+<td>分钟频度（1MIN/5MIN/15MIN/30MIN/60MIN）</td>
+</tr>
+</tbody></table>
+同时提供当日开市以来所有历史分钟（即：分钟快照回放），接口名：rt_fut_min_daily，只支持一个个合约提取。
+
+rt_fut_min_daily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>Y</td>
+<td>股票代码，e.g.CU2310.SHF，仅支持一次一个合约的回放</td>
+</tr>
+<tr>
+<td>freq</td>
+<td>str</td>
+<td>Y</td>
+<td>分钟频度（1MIN/5MIN/15MIN/30MIN/60MIN）</td>
+</tr>
+<tr>
+<td>date_str</td>
+<td>str</td>
+<td>N</td>
+<td>回放日期（格式：YYYY-MM-DD，默认为交易当日，支持回溯一天）</td>
+</tr>
+</tbody></table>
+freq参数说明
+
+<table>
+<thead>
+<tr>
+<th>freq</th>
+<th>说明</th>
+</tr>
+</thead>
+<tbody><tr>
+<td>1MIN</td>
+<td>1分钟</td>
+</tr>
+<tr>
+<td>5MIN</td>
+<td>5分钟</td>
+</tr>
+<tr>
+<td>15MIN</td>
+<td>15分钟</td>
+</tr>
+<tr>
+<td>30MIN</td>
+<td>30分钟</td>
+</tr>
+<tr>
+<td>60MIN</td>
+<td>60分钟</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>code</td>
+<td>str</td>
+<td>Y</td>
+<td>股票代码</td>
+</tr>
+<tr>
+<td>freq</td>
+<td>str</td>
+<td>Y</td>
+<td>频度</td>
+</tr>
+<tr>
+<td>time</td>
+<td>str</td>
+<td>Y</td>
+<td>交易时间</td>
+</tr>
+<tr>
+<td>open</td>
+<td>float</td>
+<td>Y</td>
+<td>开盘价</td>
+</tr>
+<tr>
+<td>close</td>
+<td>float</td>
+<td>Y</td>
+<td>收盘价</td>
+</tr>
+<tr>
+<td>high</td>
+<td>float</td>
+<td>Y</td>
+<td>最高价</td>
+</tr>
+<tr>
+<td>low</td>
+<td>float</td>
+<td>Y</td>
+<td>最低价</td>
+</tr>
+<tr>
+<td>vol</td>
+<td>int</td>
+<td>Y</td>
+<td>成交量</td>
+</tr>
+<tr>
+<td>amount</td>
+<td>float</td>
+<td>Y</td>
+<td>成交金额</td>
+</tr>
+<tr>
+<td>oi</td>
+<td>float</td>
+<td>Y</td>
+<td>持仓量</td>
+</tr>
+</tbody></table>
+接口用法
+
+```
+
+pro = ts.pro_api()
+
+#单个合约
+df = pro.df = pro.rt_fut_min(ts_code='CU2501.SHF', freq='1MIN')
+
+#多个合约
+df = pro.df = pro.rt_fut_min(ts_code='CU2501.SHF,CU2502.SHF', freq='1MIN')
+
+```