chore: unignore .env.example and add load-test env example

Author: linconvidal

.gitignore

@@ -28,6 +28,7 @@ hs_err_pid*
 target
 settings.xml
 .env*
+!.env.example
 
 /data/
 /node/

tests/load-tests/.env.example

@@ -0,0 +1,13 @@
+# Database connection for populating test data from Yaci Store
+# Copy this file to .env and fill in your values
+
+# Database connection (default rosetta-java credentials)
+DB_HOST=localhost
+DB_PORT=5432
+DB_NAME=rosetta-java
+DB_USER=rosetta_db_admin
+DB_PASSWORD=weakpwd#123_d
+DB_SCHEMA=public
+
+# Alternative: use a connection string
+# DATABASE_URL=postgresql://rosetta_db_admin:weakpwd#123_d@localhost:5432/rosetta-java