yuluo-yx opened a new issue, #2759:
URL: https://github.com/apache/rocketmq-dashboard/issues/2759

   ## Problem
   
   MiniBar uses raw metric samples in Math.max, CSS height calculations, and 
its generated aria-label. NaN, Infinity, or negative values can therefore 
produce invalid CSS lengths and expose malformed values to assistive technology.
   
   ## Expected behavior
   
   Normalize non-finite and negative samples to zero before calculating bar 
dimensions and the default accessible label.
   
   ## Verification
   
   Add a focused MiniBar regression test covering NaN, Infinity, negative, and 
valid samples.
   


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