Some updates for backend thingies

src/core/config.py

@@ -1,3 +1,4 @@
+import os
 from pydantic_settings import BaseSettings
 from pydantic import Field
 
@@ -6,19 +7,24 @@ class Settings(BaseSettings):
     
     # Base de datos MySQL
     mysql_url: str = Field(
-        default="mysql+pymysql://user:password@localhost/voxpopuli_users",
+        default=os.getenv("MYSQL_URL", "mysql+pymysql://voxpopuli:voxpopuli_pass@localhost:3306/voxpopuli_users"),
         description="URL de conexión a MySQL para API de Usuarios"
     )
     
     # Base de datos MongoDB
     mongodb_url: str = Field(
-        default="mongodb://localhost:27017",
+        default=os.getenv("MONGODB_URL", "mongodb://localhost:27017"),
         description="URL de conexión a MongoDB para API de Reportes"
     )
     mongodb_db: str = Field(
         default="voxpopuli_reports",
         description="Base de datos MongoDB"
     )
+
+    rabbitmq: str = Field (
+        default=os.getenv("RABBITMQ_URI", "localhost")
+
+    )
     
     # API
     api_title: str = "VoxPopuli Microservices"