feat(hail-recon): Hail Recon integration — storm intel panel, hail history, auto storm mode, address monitoring

api/hail-status.js

@@ -0,0 +1,40 @@
+/**
+ * Returns current storm status — polled by the frontend every 60 seconds.
+ * Storm is considered "active" if an event was received within the last 24 hours.
+ *
+ * Response: { stormActive: boolean, event: StormEvent | null, checkedAt: number }
+ */
+
+import { kv } from '@vercel/kv';
+
+const STORM_ACTIVE_WINDOW_MS = 24 * 60 * 60 * 1000; // 24 hours
+
+export default async function handler(req, res) {
+    res.setHeader('Cache-Control', 'no-store');
+
+    if (req.method !== 'GET') {
+        return res.status(405).json({ error: 'Method not allowed' });
+    }
+
+    try {
+        const event = await kv.get('lastStormEvent');
+
+        const stormActive = !!event &&
+            typeof event.receivedAt === 'number' &&
+            (Date.now() - event.receivedAt) < STORM_ACTIVE_WINDOW_MS;
+
+        return res.status(200).json({
+            stormActive,
+            event: stormActive ? event : null,
+            checkedAt: Date.now(),
+        });
+    } catch (err) {
+        // KV not configured (local dev without env vars) — return inactive
+        console.warn('[hail-status] KV unavailable:', err.message);
+        return res.status(200).json({
+            stormActive: false,
+            event: null,
+            checkedAt: Date.now(),
+        });
+    }
+}