Grant ALL PRIVILEGES so Alembic can run DDL migrations

CRUD-only was too restrictive — CREATE TABLE and ALTER TABLE are needed.

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

create_db.sql

@@ -8,6 +8,6 @@ CREATE DATABASE IF NOT EXISTS pops
 CREATE USER IF NOT EXISTS 'pops'@'%'
     IDENTIFIED WITH caching_sha2_password BY 'changeme';
 
-GRANT SELECT, INSERT, UPDATE, DELETE ON pops.* TO 'pops'@'%';
+GRANT ALL PRIVILEGES ON pops.* TO 'pops'@'%';
 
 FLUSH PRIVILEGES;