Add project registration endpoint

src/atocore/api/routes.py

@@ -37,6 +37,7 @@ from atocore.projects.registry import (
     build_project_registration_proposal,
     get_project_registry_template,
     list_registered_projects,
+    register_project,
     refresh_registered_project,
 )
 from atocore.retrieval.retriever import retrieve
@@ -202,6 +203,20 @@ def api_project_registration_proposal(req: ProjectRegistrationProposalRequest) -
         raise HTTPException(status_code=400, detail=str(e))
 
 
+@router.post("/projects/register")
+def api_project_registration(req: ProjectRegistrationProposalRequest) -> dict:
+    """Persist a validated project registration to the registry file."""
+    try:
+        return register_project(
+            project_id=req.project_id,
+            aliases=req.aliases,
+            description=req.description,
+            ingest_roots=req.ingest_roots,
+        )
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
 @router.post("/projects/{project_name}/refresh", response_model=ProjectRefreshResponse)
 def api_refresh_project(project_name: str, purge_deleted: bool = False) -> ProjectRefreshResponse:
     """Refresh one registered project from its configured ingest roots."""