crea db con lo mínimo

src/lib/db/db.js

@@ -1,7 +1,24 @@
 /** @typedef {typeof import('better-sqlite3')} better-sqlite3 */
 import Database from 'better-sqlite3';
 
-export const db = new Database('./carteles_dev.sqlite', { verbose: console.log })
+export const db = new Database('./carteles_dev.sqlite', { fileMustExist: true, verbose: console.log })
 db.pragma("journal_mode = WAL");
 db.pragma("synchronous = normal");
 db.pragma("temp_store = memory");
+
+const createUserTable = db.prepare(`CREATE TABLE IF NOT EXISTS Users (
+  email TEXT PRIMARY KEY UNIQUE NOT NULL,
+  password TEXT,
+  isAdmin INTEGER
+  );`);
+
+const createPostersTable = db.prepare(`CREATE TABLE IF NOT EXISTS Posters (
+  id INTEGER PRIMARY KEY UNIQUE NOT NULL,
+  image BLOB,
+  template TEXT,
+  name TEXT,
+  content TEXT
+);`);
+
+createUserTable.run();
+createPostersTable.run();