feat: Implement multi-tenancy support in middleware and security layers

- Enhanced TenantMiddleware to validate tenant information from JWT tokens.
- Added LicenseValidationMiddleware to check tenant licenses before processing requests.
- Updated security utilities to extract tenant information from tokens and validate company access.
- Introduced CompanyStore to manage active company state and handle company switching in the frontend.
- Modified API routes to include company_id in requests for better resource management.
- Improved logging and error handling throughout the middleware and API layers.
- Updated frontend components to reflect changes in company management and selection.
- Added new API route for fetching user's companies with proper authentication handling.

scripts/init_first_time.sh

@@ -534,8 +534,8 @@ COMPANY_EXISTS=$(echo "$COMPANY_EXISTS" | xargs)
 
 if [ "$COMPANY_EXISTS" = "0" ]; then
     PGPASSWORD="${POSTGRES_PASSWORD}" psql -h "${POSTGRES_HOST}" -p "${POSTGRES_PORT}" -U "${POSTGRES_USER}" -d "${POSTGRES_DB}" <<EOF
-INSERT INTO a76.company (tenant_id, name, rfc, is_service_company)
-VALUES (${TENANT_ID}, '${COMPANY_NAME}', '${COMPANY_RFC}', false);
+INSERT INTO a76.company (tenant_id, name, rfc, is_service_company, created_at, updated_at)
+VALUES (${TENANT_ID}, '${COMPANY_NAME}', '${COMPANY_RFC}', false, now(), now());
 EOF
     echo -e "${GREEN}✓ Company creada${NC}"
 else
@@ -565,9 +565,9 @@ echo -e "${GREEN}✓ Atributo tenant_id asignado al usuario${NC}"
 echo -e "\n${YELLOW}Creando relación usuario-tenant en la base de datos...${NC}"
 
 PGPASSWORD="${POSTGRES_PASSWORD}" psql -h "${POSTGRES_HOST}" -p "${POSTGRES_PORT}" -U "${POSTGRES_USER}" -d "${POSTGRES_DB}" <<EOF
-INSERT INTO a76.user_tenants (keycloak_user_id, tenant_id, role, is_active, created_at, updated_at)
-VALUES ('${USER_ID}', ${TENANT_ID}, 'admin', true, now(), now())
-ON CONFLICT (keycloak_user_id, tenant_id) 
+INSERT INTO a76.user_tenants (keycloak_user_id, tenant_id, company_id, role, is_active, created_at, updated_at)
+VALUES ('${USER_ID}', ${TENANT_ID}, 1, 'admin', true, now(), now())
+ON CONFLICT (keycloak_user_id, tenant_id, company_id) 
 DO UPDATE SET 
     is_active = true,
     updated_at = CURRENT_TIMESTAMP;