feat(matrix): add adapter baseline and platform-aware command hints

adapter/matrix/handlers/chat.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+from core.protocol import IncomingCommand, OutgoingMessage
+
+
+async def handle_new_chat(
+    event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr
+) -> list:
+    if not await auth_mgr.is_authenticated(event.user_id):
+        return [OutgoingMessage(chat_id=event.chat_id, text="Введите !start чтобы начать.")]
+
+    name = " ".join(event.args).strip() if event.args else ""
+    chats = await chat_mgr.list_active(event.user_id)
+    chat_id = f"C{len(chats) + 1}"
+    ctx = await chat_mgr.get_or_create(
+        user_id=event.user_id,
+        chat_id=chat_id,
+        platform=event.platform,
+        surface_ref=event.chat_id,
+        name=name or None,
+    )
+    return [
+        OutgoingMessage(
+            chat_id=event.chat_id, text=f"Создан чат: {ctx.display_name} ({ctx.chat_id})"
+        )
+    ]
+
+
+async def handle_list_chats(
+    event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr
+) -> list:
+    chats = await chat_mgr.list_active(event.user_id)
+    if not chats:
+        return [OutgoingMessage(chat_id=event.chat_id, text="Нет активных чатов.")]
+    lines = [f"• {c.display_name} ({c.chat_id})" for c in chats]
+    return [OutgoingMessage(chat_id=event.chat_id, text="\n".join(lines))]
+
+
+async def handle_rename(event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr) -> list:
+    if not event.args:
+        return [OutgoingMessage(chat_id=event.chat_id, text="Укажите название: !rename Название")]
+    ctx = await chat_mgr.rename(event.chat_id, " ".join(event.args), user_id=event.user_id)
+    return [OutgoingMessage(chat_id=event.chat_id, text=f"Переименован в: {ctx.display_name}")]
+
+
+async def handle_archive(
+    event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr
+) -> list:
+    await chat_mgr.archive(event.chat_id, user_id=event.user_id)
+    return [OutgoingMessage(chat_id=event.chat_id, text="Чат архивирован.")]