feat: 完成项目助手与监控演示并修复聊天及云部署配置

backend/api/risk_agent_connectors.py

@@ -6,9 +6,9 @@ from decimal import Decimal
 import sqlite3
 
 
-def normalize(value):
+def normalize(value, exact_decimals=False):
     if isinstance(value, (date, datetime)): return value.isoformat()
-    if isinstance(value, Decimal): return float(value)
+    if isinstance(value, Decimal): return str(value) if exact_decimals else float(value)
     if isinstance(value, bytes): raise ValueError("查询包含二进制数据，请返回附件索引而非文件内容")
     return value
 
@@ -34,7 +34,7 @@ def validate_query(sql, allowed_tables, dialect):
         raise ValueError("查询使用了未授权的库表或视图")
 
 
-def execute(connection, sql, project_id):
+def execute(connection, sql, project_id, exact_decimals=False):
     from sqlalchemy import create_engine, text
     from sqlalchemy.engine import URL
     kind = connection.get("type")
@@ -84,7 +84,7 @@ def execute(connection, sql, project_id):
                 db.exec_driver_sql(f"SET SESSION MAX_EXECUTION_TIME = {seconds*1000}")
             rows = db.execute(text(sql), {"project_id": project_id}).mappings().fetchmany(max_rows+1)
             if len(rows)>max_rows: raise ValueError(f"查询结果超过 {max_rows} 行，请缩小范围")
-            return [{k:normalize(v) for k,v in row.items()} for row in rows]
+            return [{k:normalize(v, exact_decimals) for k,v in row.items()} for row in rows]
     except ValueError:
         raise
     except Exception: