feat: Stats. Closes #6

app/models/event_log.py

@@ -0,0 +1,26 @@
+from datetime import datetime
+from sqlalchemy import String, Integer, DateTime, JSON
+from sqlalchemy.orm import Mapped, mapped_column
+from app.core.database import Base
+
+
+class EventLog(Base):
+    """Лог событий управления лампами."""
+
+    __tablename__ = "event_log"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+    timestamp: Mapped[str] = mapped_column(
+        String, default=lambda: datetime.now().isoformat()
+    )
+    key_name: Mapped[str] = mapped_column(
+        String, default="unknown"
+    )  # кто: "master", "vasya", ...
+    action: Mapped[str] = mapped_column(
+        String
+    )  # "control", "toggle_on", "toggle_off", "scene", ...
+    target_type: Mapped[str] = mapped_column(
+        String, default="group"
+    )  # "group" или "device"
+    target_id: Mapped[str] = mapped_column(String)  # id группы или устройства
+    params: Mapped[str] = mapped_column(String, nullable=True)  # JSON строка параметров