生成记录接口兼容图片类型|CHAT对话生成视频/图片任务API+celery异步模块完成

video-gen-api/app/models/chat_generation_task_event.py

@@ -0,0 +1,25 @@
+from sqlalchemy import DateTime, ForeignKey, String, Text, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.models.base import Base
+from app.utils.id_gen import generate_id
+
+
+class ChatGenerationTaskEvent(Base):
+    """Append-only event log for project-independent chat generation tasks."""
+
+    __tablename__ = "chat_generation_task_events"
+
+    id: Mapped[str] = mapped_column(String(32), primary_key=True, default=generate_id)
+    task_id: Mapped[str] = mapped_column(
+        String(32), ForeignKey("chat_generation_tasks.id", ondelete="CASCADE"), index=True
+    )
+    generation_mode: Mapped[str | None] = mapped_column(String(32), nullable=True, index=True)
+    event_type: Mapped[str] = mapped_column(String(64), index=True)
+    from_status: Mapped[str | None] = mapped_column(String(32), nullable=True)
+    to_status: Mapped[str | None] = mapped_column(String(32), nullable=True)
+    from_stage: Mapped[str | None] = mapped_column(String(32), nullable=True)
+    to_stage: Mapped[str | None] = mapped_column(String(32), nullable=True)
+    message: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    detail_json: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_at = mapped_column(DateTime(timezone=True), server_default=func.now(), index=True)