feat: OpenMesh 基础平台与 MD/PDF 转换技能

- 后端: coworker 智能体框架, WS API, 文件上传, 附件处理
- 前端: Open WebUI, 文件全量走 upload API (含 MD/TXT/JSON 等文本类)
- 技能: md-to-office (pandoc + wkhtmltopdf)
- 修复: 上传文件路径丢失, Agent 搜索浪费, 输出文件跑到 uploads/
- 打包: PyInstaller one-dir, 预打包 pandoc/wkhtmltopdf/chromium

tests/test_layered_corpora.py

@@ -0,0 +1,34 @@
+"""Schema, coverage, and production-tool parity for the layered security corpora."""
+from __future__ import annotations
+
+from scripts.validate_layered_corpora import validate_all
+
+
+def test_layered_corpora_are_valid_and_meet_size_floors():
+    summary = validate_all()
+    assert summary["permission_gate.jsonl"]["rows"] >= 120
+    assert summary["reviewer_actions.jsonl"]["rows"] >= 120
+    assert summary["action_sequences.jsonl"]["rows"] >= 60
+    assert summary["total"] >= 300
+
+
+def test_layered_corpora_have_balanced_decision_classes():
+    summary = validate_all()
+    assert set(summary["permission_gate.jsonl"]["labels"]) == {
+        "allow_without_reviewer",
+        "reviewer_eligible",
+        "human_only",
+        "hard_deny",
+    }
+    assert set(summary["reviewer_actions.jsonl"]["labels"]) == {"allow", "ask", "deny"}
+    assert set(summary["action_sequences.jsonl"]["labels"]) == {"allow", "ask", "deny"}
+
+
+def test_layered_corpora_span_many_tools_and_tags():
+    summary = validate_all()
+    assert summary["permission_gate.jsonl"]["tools"] >= 30
+    assert summary["reviewer_actions.jsonl"]["tools"] >= 45
+    assert summary["action_sequences.jsonl"]["tools"] >= 40
+    assert summary["permission_gate.jsonl"]["tags"] >= 50
+    assert summary["reviewer_actions.jsonl"]["tags"] >= 50
+    assert summary["action_sequences.jsonl"]["tags"] >= 35