test(01-04): add matrix space regression coverage

- add MAT-01..MAT-07 and MAT-09..MAT-12 regression tests for matrix adapter
- extend store and dispatcher coverage for pending confirmations and settings dashboard
- verify matrix adapter suite and full pytest suite stay green

tests/adapter/matrix/test_send_outgoing.py

@@ -0,0 +1,52 @@
+from __future__ import annotations
+
+from types import SimpleNamespace
+from unittest.mock import AsyncMock
+
+from adapter.matrix.bot import send_outgoing
+from adapter.matrix.store import get_pending_confirm
+from core.protocol import OutgoingUI, UIButton
+from core.store import InMemoryStore
+
+
+async def test_mat06_outgoing_ui_renders_text_with_yes_no():
+    client = SimpleNamespace(room_send=AsyncMock())
+    store = InMemoryStore()
+    event = OutgoingUI(
+        chat_id="C1",
+        text="Удалить файл?",
+        buttons=[UIButton(label="Подтвердить", action="confirm")],
+    )
+
+    await send_outgoing(client, "!room:ex", event, store=store)
+
+    client.room_send.assert_awaited_once()
+    body = client.room_send.call_args.args[2]["body"]
+    assert "Удалить файл?" in body
+    assert "!yes" in body
+    assert "!no" in body
+    assert "Подтвердить" in body
+
+
+async def test_mat07_outgoing_ui_no_reaction_sent():
+    client = SimpleNamespace(room_send=AsyncMock())
+    store = InMemoryStore()
+    event = OutgoingUI(
+        chat_id="C1",
+        text="Confirm action?",
+        buttons=[UIButton(label="OK", action="confirm", payload={"id": 1})],
+    )
+
+    await send_outgoing(client, "!room:ex", event, store=store)
+
+    assert client.room_send.await_count == 1
+    assert client.room_send.call_args.args[1] == "m.room.message"
+    for call in client.room_send.call_args_list:
+        assert call.args[1] != "m.reaction"
+
+    pending = await get_pending_confirm(store, "!room:ex")
+    assert pending == {
+        "action_id": "confirm",
+        "description": "Confirm action?",
+        "payload": {"id": 1},
+    }