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_tui.py

@@ -0,0 +1,77 @@
+"""P7 (lite) gate — TUI smoke tests with a scripted provider (no network)."""
+
+from __future__ import annotations
+
+import pytest
+
+from coworker.providers import (
+    AssistantTurn,
+    ModelCapabilities,
+    ProviderClient,
+    ToolCall,
+)
+from coworker.tui.app import CoworkerApp
+
+
+def _text_turn(text):
+    return AssistantTurn(text=text, finish_reason="stop")
+
+
+def _tool_turn(name, args, call_id="call_1"):
+    return AssistantTurn(
+        tool_calls=[ToolCall(id=call_id, name=name, arguments=args)],
+        finish_reason="tool_calls",
+    )
+
+
+class _ScriptedProvider(ProviderClient):
+    def __init__(self, turns):
+        self._turns = list(turns)
+
+    def complete(self, *, model, messages, tools=None, **settings):
+        return self._turns.pop(0)
+
+    def capabilities(self, model):
+        return ModelCapabilities()
+
+
+async def _submit(pilot, text):
+    app = pilot.app
+    app.query_one("#prompt").value = text
+    await pilot.press("enter")
+    await app.workers.wait_for_complete()
+    await pilot.pause()
+
+
+@pytest.mark.asyncio
+async def test_tui_boots_and_renders_turn(tmp_path):
+    app = CoworkerApp(
+        workspace=tmp_path,
+        provider=_ScriptedProvider([_text_turn("hi, I am the agent")]),
+    )
+    async with app.run_test() as pilot:
+        await _submit(pilot, "hello")
+        assert any("hi, I am the agent" in line for line in app.rendered)
+
+
+@pytest.mark.asyncio
+async def test_tui_approval_then_write(tmp_path):
+    app = CoworkerApp(
+        workspace=tmp_path,
+        provider=_ScriptedProvider(
+            [
+                _tool_turn("write_file", {"path": "made.py", "content": "print(1)\n"}),
+                _text_turn("done, wrote made.py"),
+            ]
+        ),
+    )
+    async with app.run_test() as pilot:
+        app.query_one("#prompt").value = "create made.py"
+        await pilot.press("enter")
+        await pilot.pause()
+        await pilot.press("y")  # approve the write
+        await app.workers.wait_for_complete()
+        await pilot.pause()
+
+    assert (tmp_path / "made.py").read_text() == "print(1)\n"
+    assert any("done, wrote made.py" in line for line in app.rendered)