Connectors SDK core for Weavric (#147). A connector is a manifest (ConnectorDefinition) of named operations — each itself a reusable WeaveDefinition — plus a shared set of private helper definitions and a connection setup spec. Operations are installed as dotted user-defined actions (connector.op) and dispatched through the existing userDefinedAction seam; connector-local helpers resolve LOCAL-FIRST via each operation's definitions map. Connections are ...