feat: update lake index, sync scraping scripts, and prune unused data files

src/components/LakesOverview.tsx

@@ -51,7 +51,7 @@ const CircularProgress = ({ value, size = 60, strokeWidth = 6 }: { value: number
         />
       </svg>
       <div style={{ position: 'absolute', top: 0, left: 0, width: '100%', height: '100%', display: 'flex', alignItems: 'center', justifyContent: 'center', fontSize: size * 0.25, fontWeight: 'bold' }}>
-        {value}%
+        {value > 0 ? `${value}%` : 'N/A'}
       </div>
     </div>
   );
@@ -80,7 +80,7 @@ const PriorityCard = ({ lake, onSelectLake }: { lake: Lake, onSelectLake: (id: s
         <div style={{ display: 'flex', alignItems: 'center', gap: '1rem' }}>
           <CircularProgress value={lake.capacity} size={70} strokeWidth={6} />
           <div>
-            <div style={{ fontSize: '1.25rem', fontWeight: 'bold' }}>{lake.capacity}% / <span style={{ fontSize: '1rem', color: 'var(--text-muted)', fontWeight: 'normal' }}>{lake.volume} mil. m³</span></div>
+            <div style={{ fontSize: '1.25rem', fontWeight: 'bold' }}>{lake.capacity > 0 ? `${lake.capacity}%` : 'N/A'} / <span style={{ fontSize: '1rem', color: 'var(--text-muted)', fontWeight: 'normal' }}>{lake.volume} mil. m³</span></div>
             <div style={{ fontSize: '0.8rem', color: 'var(--text-muted)' }}>Volume</div>
           </div>
         </div>