Add job processing system with streaming endpoint

Introduced a `processing` router to handle job streaming using server-sent events. Added `Jobs` and `JobStatus` models for managing job-related data, along with database creation logic. Updated the `sample` router to create new job entries during experiment creation.

.gitlab-ci.yml

@@ -60,13 +60,17 @@ release:
     TWINE_USERNAME: gitlab-ci-token
     TWINE_PASSWORD: $CI_JOB_TOKEN
     ENVIRONMENT: test
+  before_script:
+    - sudo chown -R gitlab-runner:gitlab-runner "$CI_PROJECT_DIR" || true
+    - sudo find "$CI_PROJECT_DIR" -type f -exec chmod 644 {} + || true
+    - sudo find "$CI_PROJECT_DIR" -type d -exec chmod 755 {} + || true
   script:
     # build and run commands within docker container context
     - docker compose build backend
 
     # Run commands inside your 'backend' service container
     - docker compose run --rm backend mkdir -p /app/backend/ssl
-    - docker compose run --rm backend bash make_openapi_client.sh
+    - docker compose run --rm -e ENVIRONMENT=test backend bash make_openapi_client.sh
 
     # After script finishes execution within the container,
     # revert to the runner environment context if needed