Adds a path-based Service constructor for callers that want notify without managing the *libfossil.Repo lifecycle separately:

type ServiceFromPathConfig struct { RepoPath string NATSConn *nats.Conn From string FromName string }

func NewServiceFromPath(cfg ServiceFromPathConfig) (*Service, error)

If the repo already exists at RepoPath it's opened; otherwise it's created via InitNotifyRepo. Service.Close() now closes the repo when the Service was constructed via NewServiceFromPath; the existing NewService path is unchanged (caller still owns the repo).

The new constructor uses the same open-or-create pattern hub.NewHub uses, so re-entry on an existing path Just Works.

Closes #115 check-in: 5ceb63c701 user: [email protected] tags: trunk