fix(api): add debian-openssl-3.0.x to Prisma binaryTargets

Prisma client was generated for debian-openssl-1.1.x but the
node:24-slim Docker image runs Debian Bookworm with OpenSSL 3.0.x.
Adding explicit binaryTargets ensures the correct query engine is
always generated regardless of build host.

Also removes inline comments from .env.example rate limit values —
Portainer treats trailing comments as part of the value.

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

apps/api/prisma/schema.prisma

@@ -3,6 +3,7 @@
 
 generator client {
   provider        = "prisma-client-js"
+  binaryTargets   = ["native", "debian-openssl-3.0.x"]
   previewFeatures = ["postgresqlExtensions"]
 }