Update finance router with VIX endpoint

routers/finance.py

@@ -220,4 +220,15 @@ async def get_ticker_info(token: Annotated[str, Depends(verify_token)], ticker:
         }
         return APIResponse(success=True, data=result)
     except Exception as e:
-        return APIResponse(success=False, error=str(e))
+        return APIResponse(success=False, error=str(e))
+
+@router.get("/vix", response_model=APIResponse)
+async def get_vix(token: Annotated[str, Depends(verify_token)]):
+    """Get the current VIX index price"""
+    try:
+        response = await get_current_price(token, ticker="^VIX")
+        if not response.success:
+            raise Exception(response.error)
+        return APIResponse(success=True, data=response.data)
+    except Exception as e:
+        return APIResponse(success=False, error=f"Failed to fetch VIX: {str(e)}")