feat: add admin permissions voice input analytics and feedback

ai_knowledge_base_v2/apps/backend/app/models/feedback.py

@@ -0,0 +1,26 @@
+from __future__ import annotations
+
+from datetime import datetime
+
+from sqlalchemy import BigInteger, DateTime, ForeignKey, Index, Integer, String, Text, UniqueConstraint, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.models.base import Base
+
+
+class MessageFeedback(Base):
+    __tablename__ = "sys_message_feedback"
+    __table_args__ = (
+        UniqueConstraint("user_id", "message_id", name="uq_message_feedback_user_message"),
+        Index("ix_message_feedback_read_created", "is_read", "created_at"),
+    )
+
+    id: Mapped[int] = mapped_column(BigInteger().with_variant(Integer, "sqlite"), primary_key=True, autoincrement=True)
+    user_id: Mapped[int] = mapped_column(ForeignKey("sys_user.id"), nullable=False, index=True)
+    session_id: Mapped[int] = mapped_column(ForeignKey("sys_chat_session.id"), nullable=False, index=True)
+    message_id: Mapped[int] = mapped_column(ForeignKey("sys_chat_message.id"), nullable=False, index=True)
+    content: Mapped[str] = mapped_column(String(200), nullable=False)
+    is_read: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    read_by: Mapped[int | None] = mapped_column(ForeignKey("sys_admin.id"), nullable=True)
+    read_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), nullable=False)