fix: revert to 1 decimal place for fader labels

Changed back from .toFixed(2) to .toFixed(1) while keeping the fixed
widths to prevent component movement.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

components/controls/MasterFader.tsx

@@ -177,7 +177,7 @@ export function MasterFader({
           valueDb > -6 ? 'text-yellow-500' :
           'text-green-500'
         )}>
-          {valueDb > -60 ? `${valueDb.toFixed(2)}` : '-∞'}
+          {valueDb > -60 ? `${valueDb.toFixed(1)}` : '-∞'}
         </div>
 
         {/* Spacer */}
@@ -192,7 +192,7 @@ export function MasterFader({
             peakDb > -6 ? 'text-yellow-500' :
             'text-green-500'
           )}>
-            {peakDb > -60 ? `${peakDb.toFixed(2)}` : '-∞'}
+            {peakDb > -60 ? `${peakDb.toFixed(1)}` : '-∞'}
           </span>
         </div>
 
@@ -205,7 +205,7 @@ export function MasterFader({
             rmsDb > -6 ? 'text-yellow-500' :
             'text-green-500'
           )}>
-            {rmsDb > -60 ? `${rmsDb.toFixed(2)}` : '-∞'}
+            {rmsDb > -60 ? `${rmsDb.toFixed(1)}` : '-∞'}
           </span>
         </div>
 

components/tracks/TrackFader.tsx

@@ -168,7 +168,7 @@ export function TrackFader({
           valueDb > -6 ? 'text-yellow-500' :
           'text-green-500'
         )}>
-          {valueDb > -60 ? `${valueDb.toFixed(2)}` : '-∞'}
+          {valueDb > -60 ? `${valueDb.toFixed(1)}` : '-∞'}
         </div>
       </div>
     </div>