seed(prod): add 4 sites with addresses and geocoordinates

New / updated sites:
- HOFC  Head Office Mumbai   19.0449, 73.0758  Kharghar, Navi Mumbai
- HLDA  Haldia Port          22.0286, 88.0780  Haldia Dock Complex, WB
- KCHI  Kochi                10.0261, 76.2193  LNG Terminal, Puthuvype
- PTNA  Patna                25.6097, 85.1376  Gaighat, Gulzarbagh

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

App/prisma/seed-prod.ts

@@ -40,14 +40,34 @@ const USERS: { employeeId: string; name: string; email: string; role: Role }[] =
 
 // ─── Sites ────────────────────────────────────────────────────────────────────
 
-const SITES: { code: string; name: string }[] = [
+type SiteEntry = { code: string; name: string; address?: string; latitude?: number; longitude?: number };
-  { code: "HOFC", name: "Head Office"   },
+
+const SITES: SiteEntry[] = [
+  {
+    code: "HOFC", name: "Head Office Mumbai",
+    address:   "ZION, 409-410, Sector 10, Kharghar, Panvel, Maharashtra 410210",
+    latitude:   19.0449, longitude: 73.0758,
+  },
   { code: "PMSK", name: "PMS Kochi"  },
   { code: "LACD", name: "Laccadives" },
-  { code: "HLDA", name: "Haldia"        },
+  {
+    code: "HLDA", name: "Haldia Port",
+    address:   "Haldia Dock Complex, Haldia, West Bengal 721604",
+    latitude:   22.0286, longitude: 88.0780,
+  },
   { code: "THKM", name: "Thilakkam" },
   { code: "KVRT", name: "Kavaratti" },
   { code: "THNK", name: "Thinnakara" },
+  {
+    code: "KCHI", name: "Kochi",
+    address:   "LNG Terminal, Survey No. 347, Puthuvype, Kochi, Kerala 682508",
+    latitude:   10.0261, longitude: 76.2193,
+  },
+  {
+    code: "PTNA", name: "Patna",
+    address:   "Gaighat, Ashok Rajpath, Gulzarbagh, Patna, Bihar 800007",
+    latitude:   25.6097, longitude: 85.1376,
+  },
 ];
 
 // ─── Vessels (code, name, site code) ─────────────────────────────────────────
@@ -98,12 +118,19 @@ async function main() {
   // ── Sites ──────────────────────────────────────────────────────────────────
   console.log("\n📍  Seeding sites…");
   for (const s of SITES) {
+    const data = {
+      name:      s.name,
+      address:   s.address   ?? null,
+      latitude:  s.latitude  ?? null,
+      longitude: s.longitude ?? null,
+    };
     await db.site.upsert({
       where:  { code: s.code },
-      update: { name: s.name },
+      update: data,
-      create: { code: s.code, name: s.name },
+      create: { code: s.code, ...data },
     });
-    console.log(`   ✓ ${s.name} (${s.code})`);
+    const geo = s.latitude ? ` (${s.latitude.toFixed(4)}, ${s.longitude!.toFixed(4)})` : "";
+    console.log(`   ✓ ${s.name} (${s.code})${geo}`);
   }
 
   // ── Vessels ────────────────────────────────────────────────────────────────