connector-contract-v3 (B3a): the v3 contract as typed documents over CultNet operations (squash of eureka-body/connector-contract-v3 ec0519d..a0a6ccb)

Each frame is a cultnet.operation_request.v0 / operation_response.v0
(service gamecult.model.connector, operation invoke) over loopback
TcpFramed, carrying the kit's sealed per-caller envelope: named
MessagePack only, unknown fields refused, binary ciphertext, JSON Schema
published from the types (ruling connector-v3-wire-cultnet-operation).
v2 is deleted with its fixtures (ruling connector-v3-only). The request is
provider-neutral, with max_output_tokens required; failure kinds, stop
reasons and usage are typed, and Policy is three typed refusals. Golden
v3 frames pin the carriage and envelope.

Spec eureka-body:cut_spec:cut-connector-contract-v3.r2; reports h1-h2;
Soul s2 holds (verdict eureka-body:verdict:cut-connector-contract-v3.s2).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitattributes

@@ -0,0 +1,2 @@
+schemas/*.json text eol=lf
+crates/model-connector/tests/fixtures/wire_v3/* -text