feat: improve media delivery and web upload pipeline

- make minio bucket downloadable for direct media links

- switch object keys to random uuid-based names

- add client-side image compression before upload

docker-compose.yml

@@ -92,7 +92,8 @@ services:
       - -ec
       - >
         mc alias set local http://minio:9000 ${MINIO_ROOT_USER:-minioadmin} ${MINIO_ROOT_PASSWORD:-minioadmin};
-        mc mb --ignore-existing local/${S3_BUCKET_NAME:-messenger-media}
+        mc mb --ignore-existing local/${S3_BUCKET_NAME:-messenger-media};
+        mc anonymous set download local/${S3_BUCKET_NAME:-messenger-media}
     restart: "no"
 
   backend: