LOOPIN-73 — Create Staging Deployment and Post-Deployment Smoke Workflow

[shaig-mahmudov]

Type: CI/CD / Deployment
Priority: High

Description

Create a repeatable staging deployment workflow and automatically validate the deployed release.

Scope

• Deploy a selected commit or image to the staging environment.
• Use protected staging secrets and environment variables.
• Verify liveness and readiness after deployment.
• Run a small post-deployment API smoke suite.
• Validate authentication, events, groups, media and WebSocket connectivity.
• Add rollback instructions and deployment documentation.

Acceptance Criteria

• Staging deployment can be triggered through GitHub Actions.
• The workflow records the deployed commit SHA.
• Health checks pass before smoke tests begin.
• Core API smoke flows complete successfully.
• WebSocket connection and reconnect behavior are verified.
• Failed validation marks the deployment as unsuccessful.
• Rollback steps are documented.