feat(app): add app message log query API

api/app/controllers/__init__.py

@@ -8,6 +8,7 @@ from fastapi import APIRouter
 from . import (
     api_key_controller,
     app_controller,
+    app_log_controller,
     auth_controller,
     chunk_controller,
     document_controller,
@@ -69,6 +70,7 @@ manager_router.include_router(chunk_controller.router)
 manager_router.include_router(test_controller.router)
 manager_router.include_router(knowledgeshare_controller.router)
 manager_router.include_router(app_controller.router)
+manager_router.include_router(app_log_controller.router)
 manager_router.include_router(upload_controller.router)
 manager_router.include_router(memory_agent_controller.router)
 manager_router.include_router(memory_dashboard_controller.router)

api/app/controllers/app_log_controller.py

@@ -0,0 +1,129 @@
+"""应用日志（消息记录）接口"""
+import uuid
+from typing import Optional
+
+from fastapi import APIRouter, Depends
+from sqlalchemy import select, desc, func
+from sqlalchemy.orm import Session
+
+from app.core.logging_config import get_business_logger
+from app.core.response_utils import success
+from app.db import get_db
+from app.dependencies import get_current_user, cur_workspace_access_guard
+from app.models.conversation_model import Conversation, Message
+from app.schemas.app_log_schema import AppLogConversation, AppLogConversationDetail, AppLogMessage
+from app.schemas.response_schema import PageData, PageMeta
+from app.services.app_service import AppService
+
+router = APIRouter(prefix="/apps", tags=["App Logs"])
+logger = get_business_logger()
+
+
+@router.get("/{app_id}/logs", summary="应用日志 - 会话列表")
+@cur_workspace_access_guard()
+def list_app_logs(
+        app_id: uuid.UUID,
+        page: int = 1,
+        pagesize: int = 20,
+        user_id: Optional[str] = None,
+        is_draft: Optional[bool] = None,
+        db: Session = Depends(get_db),
+        current_user=Depends(get_current_user),
+):
+    """查看应用下所有会话记录（分页）
+
+    - 支持按 user_id 筛选
+    - 支持按 is_draft 筛选（草稿会话 / 发布会话）
+    - 按最新更新时间倒序排列
+    """
+    workspace_id = current_user.current_workspace_id
+
+    # 验证应用访问权限
+    service = AppService(db)
+    service.get_app(app_id, workspace_id)
+
+    stmt = select(Conversation).where(
+        Conversation.app_id == app_id,
+        Conversation.workspace_id == workspace_id,
+        Conversation.is_active.is_(True),
+    )
+
+    if user_id:
+        stmt = stmt.where(Conversation.user_id == user_id)
+
+    if is_draft is not None:
+        stmt = stmt.where(Conversation.is_draft == is_draft)
+
+    total = int(db.execute(
+        select(func.count()).select_from(stmt.subquery())
+    ).scalar_one())
+
+    stmt = stmt.order_by(desc(Conversation.updated_at))
+    stmt = stmt.offset((page - 1) * pagesize).limit(pagesize)
+
+    conversations = list(db.scalars(stmt).all())
+
+    items = [AppLogConversation.model_validate(c) for c in conversations]
+    meta = PageMeta(page=page, pagesize=pagesize, total=total, hasnext=(page * pagesize) < total)
+
+    logger.info(
+        "查询应用日志会话列表",
+        extra={"app_id": str(app_id), "total": total, "page": page}
+    )
+
+    return success(data=PageData(page=meta, items=items))
+
+
+@router.get("/{app_id}/logs/{conversation_id}", summary="应用日志 - 会话消息详情")
+@cur_workspace_access_guard()
+def get_app_log_detail(
+        app_id: uuid.UUID,
+        conversation_id: uuid.UUID,
+        db: Session = Depends(get_db),
+        current_user=Depends(get_current_user),
+):
+    """查看某会话的完整消息记录
+
+    - 返回会话基本信息 + 所有消息（按时间正序）
+    - 消息 meta_data 包含模型名、token 用量等信息
+    """
+    workspace_id = current_user.current_workspace_id
+
+    # 验证应用访问权限
+    service = AppService(db)
+    service.get_app(app_id, workspace_id)
+
+    # 查询会话（确保属于该应用和工作空间）
+    conversation = db.scalars(
+        select(Conversation).where(
+            Conversation.id == conversation_id,
+            Conversation.app_id == app_id,
+            Conversation.workspace_id == workspace_id,
+            Conversation.is_active.is_(True),
+        )
+    ).first()
+
+    if not conversation:
+        from app.core.exceptions import ResourceNotFoundException
+        raise ResourceNotFoundException("会话", str(conversation_id))
+
+    # 查询消息（按时间正序）
+    messages = list(db.scalars(
+        select(Message)
+        .where(Message.conversation_id == conversation_id)
+        .order_by(Message.created_at)
+    ).all())
+
+    detail = AppLogConversationDetail.model_validate(conversation)
+    detail.messages = [AppLogMessage.model_validate(m) for m in messages]
+
+    logger.info(
+        "查询应用日志会话详情",
+        extra={
+            "app_id": str(app_id),
+            "conversation_id": str(conversation_id),
+            "message_count": len(messages)
+        }
+    )
+
+    return success(data=detail)