first commit

api/app/services/coverage.py

@@ -0,0 +1,16 @@
+from app.models.coverage import CoverageRequest
+from app.services.jobs import create_job
+
+
+def enqueue_coverage(request: CoverageRequest) -> str:
+    return create_job(
+        status="queued",
+        result={
+            "message": (
+                "Coverage calculation requires Celery worker "
+                "and propagation model integration"
+            ),
+            "model": request.model,
+            "format": request.format,
+        },
+    )