Merge pull request #692 from AlphaTechini/main

feat: document backend API with OpenAPI 3.1

Author: ritik4ever

.github/workflows/backend.yml

@@ -36,3 +36,11 @@ jobs:
       - name: Run backend tests
         working-directory: backend
         run: npm test
+
+      - name: Check generated OpenAPI specification is current
+        working-directory: backend
+        run: npm run check:openapi
+
+      - name: Validate OpenAPI specification
+        working-directory: backend
+        run: npm run validate:openapi