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/财务审计意见.md

@@ -0,0 +1,124 @@
+# 财务审计意见
+
+**文档ID**: 80
+**原始链接**: https://tushare.pro/document/2?doc_id=80
+
+---
+
+## 财务审计意见
+
+接口：fina_audit描述：获取上市公司定期财务审计意见数据权限：用户需要至少500积分才可以调取，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>Y</td>
+<td>股票代码</td>
+</tr>
+<tr>
+<td>ann_date</td>
+<td>str</td>
+<td>N</td>
+<td>公告日期</td>
+</tr>
+<tr>
+<td>start_date</td>
+<td>str</td>
+<td>N</td>
+<td>公告开始日期</td>
+</tr>
+<tr>
+<td>end_date</td>
+<td>str</td>
+<td>N</td>
+<td>公告结束日期</td>
+</tr>
+<tr>
+<td>period</td>
+<td>str</td>
+<td>N</td>
+<td>报告期(每个季度最后一天的日期,比如20171231表示年报)</td>
+</tr>
+</tbody></table>
+输出参数
+
+<table>
+<thead>
+<tr>
+<th>名称</th>
+<th>类型</th>
+<th>描述</th>
+</tr>
+</thead>
+<tbody><tr>
+<td>ts_code</td>
+<td>str</td>
+<td>TS股票代码</td>
+</tr>
+<tr>
+<td>ann_date</td>
+<td>str</td>
+<td>公告日期</td>
+</tr>
+<tr>
+<td>end_date</td>
+<td>str</td>
+<td>报告期</td>
+</tr>
+<tr>
+<td>audit_result</td>
+<td>str</td>
+<td>审计结果</td>
+</tr>
+<tr>
+<td>audit_fees</td>
+<td>float</td>
+<td>审计总费用（元）</td>
+</tr>
+<tr>
+<td>audit_agency</td>
+<td>str</td>
+<td>会计事务所</td>
+</tr>
+<tr>
+<td>audit_sign</td>
+<td>str</td>
+<td>签字会计师</td>
+</tr>
+</tbody></table>
+接口使用
+
+```
+
+pro = ts.pro_api()
+
+df = pro.fina_audit(ts_code='600000.SH', start_date='20100101', end_date='20180808')
+
+```
+
+数据示例
+
+```
+      ts_code  ann_date  end_date        audit_result  audit_agency                audit_sign
+0  600000.SH  20180428  20171231      标准无保留意见  普华永道中天会计师事务所      周章,张武
+1  600000.SH  20170401  20161231      标准无保留意见  普华永道中天会计师事务所      周章,张武
+2  600000.SH  20160407  20151231      标准无保留意见  普华永道中天会计师事务所      胡亮,张武
+3  600000.SH  20150319  20141231      标准无保留意见  普华永道中天会计师事务所      胡亮,张武
+4  600000.SH  20140320  20131231      标准无保留意见  普华永道中天会计师事务所      胡亮,周章
+5  600000.SH  20130314  20121231      标准无保留意见  普华永道中天会计师事务所      胡亮,周章
+6  600000.SH  20120316  20111231      标准无保留意见  普华永道中天会计师事务所      胡亮,周章
+7  600000.SH  20110330  20101231      标准无保留意见    安永华明会计师事务所    严盛炜,周明骏
+8  600000.SH  20100830  20100630      标准无保留意见    安永华明会计师事务所    严盛炜,周明骏
+9  600000.SH  20100407  20091231      标准无保留意见    安永华明会计师事务所    严盛炜,周明骏
+```