feat+fix batch: Station Control dashboard (fixed-width panels, grip-handle drag reorder, amp meters from the Flex stream, compact relays), Ultrabeam element list capped to 3 (READ_BANDS over-read), spot-click on Flex panadapter now sets mode, DAX TX toggle, DVK panel state persists across relaunch, duplicate amp meters cleared on power-cycle, QSO audio recording snapshot taken synchronously at log time (was racing the form-clear cancel), Flex COMP meter max -20->-25 and MIC scale to 0; changelog 0.20.10

frontend/src/components/FlexPanel.tsx

@@ -555,11 +555,12 @@ export function FlexPanel({ onCWSpeed, onReportRST }: { onCWSpeed?: (wpm: number
                   value={w} extra={isDbm(fwd) ? `${fwd.value.toFixed(1)} dBm` : undefined} />
               ); })(),
               swr && <MeterBar key="w" label="SWR" value={peakHold('w', swr.value)} unit="" lo={1} hi={3} accent="#d97706" />,
-              // Mic input level: fixed -40..+10 dB scale, RED from 0 dB up (overdrive).
-              mic && <MeterBar key="mic" label="MIC" value={peakHold('mic', mic.value)} unit={mic.unit || 'dB'} lo={-40} hi={10} accent="#16a34a"
+              // Mic input level in dBFS — SmartSDR's scale is -40…0 dB.
+              mic && <MeterBar key="mic" label="MIC" value={peakHold('mic', mic.value)} unit={mic.unit || 'dB'} lo={-40} hi={0} accent="#16a34a"
                 segColor={(fr) => (fr >= 0.8 ? '#dc2626' : fr >= 0.7 ? '#f59e0b' : '#16a34a')} />,
-              // Speech compression (dB of gain reduction).
-              comp && <MeterBar key="comp" label="COMP" value={peakHold('comp', comp.value)} unit={comp.unit || 'dB'} lo={0} hi={(comp.hi && comp.hi > 0) ? comp.hi : 25} accent="#0891b2" />,
+              // Speech compression — original working meter, only the top of the
+              // scale changed from the radio-reported 20 to 25 (SmartSDR's -25 max).
+              comp && <MeterBar key="comp" label="COMP" value={peakHold('comp', comp.value)} unit={comp.unit || 'dB'} lo={0} hi={25} accent="#0891b2" />,
             ].filter(Boolean);
             return (
               <div className="grid grid-cols-2 sm:grid-cols-3 gap-2">{cur}</div>