test(api): add missing ReportVerdict stub to fakeAgentChannel

Task 4's plan scope covered agentchannel.go/channel.go/channel_test.go
but missed this second AgentChannel test double, which broke `go test
./...` (compile failure) even though `go build ./...` was clean.

1 files changed, 1 insertions, 0 deletions

diff --git a/internal/api/agentmcp_endpoint_test.go b/internal/api/agentmcp_endpoint_test.go
index 0f1d846..dbc742c 100644
--- a/internal/api/agentmcp_endpoint_test.go
+++ b/internal/api/agentmcp_endpoint_test.go
@@ -34,6 +34,7 @@ func (f *fakeAgentChannel) ProposeEpic(context.Context, executor.EpicProposal) (
 func (f *fakeAgentChannel) ProposeRoleConfig(context.Context, role.RoleConfig) (int, error) {
 	return 1, nil
 }
+func (f *fakeAgentChannel) ReportVerdict(context.Context, bool, string) error { return nil }
 
 type tokenRT struct {
 	token string