Add interactive school map to homepage

Replace the text list of schools with a Leaflet map showing anonymous
orange pins for 110 customer schools across Australia. Includes build-time
Airtable fetch script with Nominatim geocoding and gradient glow effect
on clustered pins.

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

scripts/seed-schools-json.mjs

@@ -0,0 +1,63 @@
+/**
+ * One-time script: geocodes the existing KNOWN_SCHOOLS list to create
+ * an initial src/data/schools.json. Run once, then use fetch-schools.ts
+ * with Airtable for ongoing updates.
+ */
+
+import { readFileSync, writeFileSync, mkdirSync } from "fs";
+import { join, dirname } from "path";
+import { fileURLToPath } from "url";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+
+// Parse the school names from schools.ts
+const schoolsTs = readFileSync(join(__dirname, "..", "src", "data", "schools.ts"), "utf-8");
+const match = schoolsTs.match(/\[([^\]]+)\]/s);
+const schools = match
+  ? match[1]
+      .split(",")
+      .map((s) => s.trim().replace(/^"|"$/g, "").replace(/^'|'$/g, ""))
+      .filter(Boolean)
+  : [];
+
+console.log(`Found ${schools.length} schools to geocode`);
+
+async function geocode(query) {
+  const params = new URLSearchParams({
+    q: query + ", Australia",
+    format: "json",
+    limit: "1",
+    countrycodes: "au",
+  });
+
+  const res = await fetch(`https://nominatim.openstreetmap.org/search?${params}`, {
+    headers: { "User-Agent": "micromelon-website-seed/1.0" },
+  });
+
+  if (!res.ok) return null;
+  const data = await res.json();
+  if (!data.length) return null;
+  return { lat: parseFloat(data[0].lat), lng: parseFloat(data[0].lon) };
+}
+
+async function main() {
+  const pins = [];
+  for (let i = 0; i < schools.length; i++) {
+    await new Promise((r) => setTimeout(r, 1100));
+    const coords = await geocode(schools[i]);
+    if (coords) {
+      pins.push(coords);
+      process.stdout.write(`  ${i + 1}/${schools.length} — ${pins.length} geocoded\r`);
+    } else {
+      console.log(`  MISS: ${schools[i]}`);
+    }
+  }
+
+  console.log(`\nDone: ${pins.length} geocoded out of ${schools.length}`);
+  const outDir = join(__dirname, "..", "src", "data");
+  mkdirSync(outDir, { recursive: true });
+  writeFileSync(join(outDir, "schools.json"), JSON.stringify(pins, null, 2) + "\n");
+  console.log("Wrote src/data/schools.json");
+}
+
+main().catch(console.error);