feat: web UI chat render, panels, presence + analytics

backend/src/utils/db/models.py

@@ -477,3 +477,18 @@ class Alert(SQLModel, table=True):
             DateTime(timezone=True), nullable=False, server_default=func.now()
         )
     )
+
+
+class Dialog(SQLModel, table=True):
+    __tablename__ = "dialogs"
+
+    account_id: int = Field(primary_key=True)
+    chat_id: int = Field(primary_key=True)
+    updated_at: datetime = Field(
+        sa_column=Column(
+            DateTime(timezone=True),
+            nullable=False,
+            server_default=func.now(),
+            onupdate=func.now(),
+        )
+    )