fix(geoportal): DROP enrichment views before recreate (column change)

PostgreSQL CREATE OR REPLACE VIEW fails when column structure changes.
Now drops views first, then recreates them.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/app/api/geoportal/setup-enrichment-views/route.ts

@@ -82,11 +82,13 @@ export async function GET() {
   }
 }
 
-/** POST — create enrichment views (idempotent) */
+/** POST — create enrichment views (idempotent, drops first if structure changed) */
 export async function POST() {
   const results: string[] = [];
   try {
     for (const v of VIEWS) {
+      // DROP first — CREATE OR REPLACE fails when columns change
+      await prisma.$executeRawUnsafe(`DROP VIEW IF EXISTS ${v.name} CASCADE`);
       await prisma.$executeRawUnsafe(v.sql);
       results.push(`${v.name} OK`);
     }