fix: make SQLite migrations and e2e reproducible

prisma.config.ts

@@ -1,6 +1,10 @@
 import 'dotenv/config';
 import { defineConfig } from 'prisma/config';
 
+// Prisma 7.9.1 fresh SQLite migration fails with inherited RUST_LOG=warn/error.
+// Use the engine default; application logging is configured separately.
+delete process.env.RUST_LOG;
+
 export default defineConfig({
   schema: 'prisma/schema.prisma',
   datasource: {