Add project registration policy and template

src/atocore/api/routes.py

@@ -34,6 +34,7 @@ from atocore.memory.service import (
 )
 from atocore.observability.logger import get_logger
 from atocore.projects.registry import (
+    get_project_registry_template,
     list_registered_projects,
     refresh_registered_project,
 )
@@ -169,6 +170,16 @@ def api_projects() -> dict:
     }
 
 
+@router.get("/projects/template")
+def api_projects_template() -> dict:
+    """Return a starter template for project registry entries."""
+    return {
+        "template": get_project_registry_template(),
+        "registry_path": str(_config.settings.resolved_project_registry_path),
+        "allowed_sources": ["vault", "drive"],
+    }
+
+
 @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."""