delete sensitive datas from application.properties

Author: polobence

backend/src/main/resources/application.properties

@@ -2,8 +2,8 @@ spring.application.name=solar-watch
 
 # Database Configuration
 spring.datasource.url=jdbc:postgresql://${DB_HOST:postgres}:5432/solarwatch
-spring.datasource.username=${DB_USER:postgres}
-spring.datasource.password=${DB_PASSWORD:Pds56ghj}
+spring.datasource.username=${DB_USER}
+spring.datasource.password=${DB_PASSWORD}
 spring.jpa.hibernate.ddl-auto=update
 spring.jpa.show-sql=true
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
@@ -12,7 +12,7 @@ spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
 geo.api.key=${GEO_API_KEY:}
 
 # JWT Configuration
-jwt.secret=${JWT_SECRET:your-256-bit-secret-key-make-this-very-secure}
+jwt.secret=${JWT_SECRET}
 jwt.expiration=86400000
 
 # Security Configuration