refactor: extract helpers from 3 match-detail/match-card components

- LocationIntelligencePanel (333→275): KpiTile + NEW_PROJECTS → own files
- FutureAvailabilityContextPanel (351→315): constants + utils → own files
- FutureAvailabilityCard (310→244): helpers + SignalQualityDots → own files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/match-detail/KpiTile.tsx

@@ -0,0 +1,38 @@
+import { Box, Typography } from '@mui/material'
+
+export function KpiTile({
+  label,
+  value,
+  sub,
+  color,
+}: {
+  label: string
+  value: string
+  sub?: string
+  color?: string
+}) {
+  return (
+    <Box
+      sx={{
+        flex: 1,
+        p: 1.5,
+        bgcolor: '#f8fafc',
+        borderRadius: 1.5,
+        border: '1px solid #e2e8f0',
+        minWidth: 100,
+      }}
+    >
+      <Typography variant="caption" color="text.secondary" sx={{ display: 'block', mb: 0.25 }}>
+        {label}
+      </Typography>
+      <Typography variant="subtitle1" sx={{ fontWeight: 700, color: color ?? '#0f1923', lineHeight: 1.2 }}>
+        {value}
+      </Typography>
+      {sub && (
+        <Typography variant="caption" color="text.secondary">
+          {sub}
+        </Typography>
+      )}
+    </Box>
+  )
+}