chore: Update .env.example and docker-compose.yml for Electric SQL configuration

.env.example

@@ -6,9 +6,10 @@ FLOWER_PORT=5555
 
 # Frontend Configuration
 FRONTEND_PORT=3000
-NEXT_PUBLIC_FASTAPI_BACKEND_URL=http://localhost:8000 (Default: http://localhost:8000)
-NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE=LOCAL or GOOGLE (Default: LOCAL)
-NEXT_PUBLIC_ETL_SERVICE=UNSTRUCTURED or LLAMACLOUD or DOCLING (Default: DOCLING)
+NEXT_PUBLIC_FASTAPI_BACKEND_URL=http://localhost:8000
+NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE=LOCAL
+NEXT_PUBLIC_ETL_SERVICE=DOCLING
+NEXT_PUBLIC_ELECTRIC_URL=http://localhost:5133
 
 # Backend Configuration
 BACKEND_PORT=8000
@@ -19,6 +20,16 @@ POSTGRES_PASSWORD=postgres
 POSTGRES_DB=surfsense
 POSTGRES_PORT=5432
 
+# Electric-SQL Configuration
+ELECTRIC_PORT=5133
+# PostgreSQL host for Electric connection
+# - 'db' for Docker PostgreSQL (service name in docker-compose)
+# - 'host.docker.internal' for local PostgreSQL (recommended when Electric runs in Docker)
+#   Note: host.docker.internal works on Docker Desktop (Mac/Windows) and can be enabled on Linux
+POSTGRES_HOST=db
+ELECTRIC_DB_USER=electric
+ELECTRIC_DB_PASSWORD=electric_password
+
 # pgAdmin Configuration
 PGADMIN_PORT=5050
 PGADMIN_DEFAULT_EMAIL=admin@surfsense.com

docker-compose.yml

@@ -118,11 +118,11 @@ services:
     ports:
       - "${ELECTRIC_PORT:-5133}:3000"
     environment:
-      - DATABASE_URL=postgresql://electric:electric_password@db:5432/${POSTGRES_DB:-surfsense}?sslmode=disable
+      - DATABASE_URL=${ELECTRIC_DATABASE_URL:-postgresql://${ELECTRIC_DB_USER:-electric}:${ELECTRIC_DB_PASSWORD:-electric_password}@${POSTGRES_HOST:-db}:${POSTGRES_PORT:-5432}/${POSTGRES_DB:-surfsense}?sslmode=disable}
       - ELECTRIC_INSECURE=true
       - ELECTRIC_WRITE_TO_PG_MODE=direct
-    depends_on:
-      - db
+    # depends_on:
+    #   - db
     restart: unless-stopped
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:3000/v1/health"]