feat: export service — DOCX, PDF, MD generation and download API

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/tests/test_export.py

@@ -0,0 +1,33 @@
+import pytest
+from app.services.export import _protocol_to_markdown, _format_section_value
+
+
+def test_format_section_value_string():
+    assert _format_section_value("Hello world") == "Hello world"
+
+
+def test_format_section_value_list():
+    result = _format_section_value(["item1", "item2"])
+    assert "- item1" in result
+    assert "- item2" in result
+
+
+def test_format_section_value_list_of_dicts():
+    tasks = [{"task": "Do X", "responsible": "Alice", "deadline": "2026-04-10"}]
+    result = _format_section_value(tasks)
+    assert "task: Do X" in result
+    assert "responsible: Alice" in result
+
+
+def test_protocol_to_markdown():
+    content = {
+        "date_participants_topic": "01.04.2026, Иванов, Петров",
+        "problems": ["Проблема 1", "Проблема 2"],
+        "next_steps": "Назначить следующую встречу",
+    }
+    md = _protocol_to_markdown(content)
+    assert "# Протокол встречи" in md
+    assert "## Дата, участники, тема встречи" in md
+    assert "## Выявленные проблемы" in md
+    assert "- Проблема 1" in md
+    assert "## Следующие шаги" in md