feat: add getWorldBlockCount function to retrieve the total number of world blocks

server/database.js

@@ -288,6 +288,11 @@ export function getWorldBlocks(limit = 10000) {
   return stmt.all(limit);
 }
 
+export function getWorldBlockCount() {
+  const row = db.prepare('SELECT COUNT(*) as cnt FROM world_blocks').get();
+  return row ? row.cnt : 0;
+}
+
 export function getWorldBlocksInArea(minX, minY, minZ, maxX, maxY, maxZ) {
   const stmt = db.prepare(`
     SELECT * FROM world_blocks