added migration script

frontend/package.json

@@ -9,7 +9,8 @@
     "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
     "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
     "lint": "prettier --plugin-search-dir . --check .",
-    "format": "prettier --write ."
+    "format": "prettier --write .",
+    "migrate": "bun ./src/lib/db/migrate.ts"
   },
   "devDependencies": {
     "@sveltejs/adapter-node": "^2.0.0",

frontend/src/lib/db/migrate.ts

@@ -0,0 +1,10 @@
+import { drizzle } from 'drizzle-orm/postgres-js'
+import { migrate } from 'drizzle-orm/postgres-js/migrator'
+import postgres from 'postgres'
+
+const sql = postgres(Bun.env.DATABASE_URL ?? '', { max: 1 })
+const db = drizzle(sql)
+
+await migrate(db, { migrationsFolder: 'drizzle' })
+
+await sql.end()