fix: failing CI tests

- TestConfigDefaultModel: update expected default model from
  'deepseek-chat' to 'deepseek-v4-flash' to match the new default
  in odek.go (changed in 3d74ec3)

- TestRunLearn_MultiStepProcedure / TestRunLearn_InteractiveReject:
  fix multiTurnServer mock to handle /models discovery endpoint.
  llm.DiscoverModelContext calls GET /models during agent init,
  consuming the first callCount and causing the first tool call
  (step 1) to be skipped — leaving only 3 tool calls instead of 4,
  which failed DetectMultiStepProcedure's len(calls) < 4 guard.

Author: molty3000

cmd/odek/main_test.go

@@ -1337,10 +1337,19 @@ func TestParseReplFlags_ExtraArgsIgnored(t *testing.T) {
 // multiTurnServer returns an httptest server that simulates a multi-turn
 // conversation: n terminal tool calls followed by a final text response.
 // Each tool call executes echo step N (safe, no side effects).
+// Handles /models discovery requests from llm.DiscoverModelContext.
 func multiTurnServer(t *testing.T, terminalCalls int) *httptest.Server {
 	t.Helper()
 	callCount := 0
 	return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+
+		// Handle /models discovery from llm.DiscoverModelContext
+		if strings.HasSuffix(r.URL.Path, "/models") {
+			w.Write([]byte(`{"object":"list","data":[{"id":"deepseek-v4-flash","context_window":131072}]}`))
+			return
+		}
+
 		callCount++
 		w.Header().Set("Content-Type", "application/json")
 		if callCount <= terminalCalls {

odek_test.go

@@ -40,8 +40,8 @@ func TestConfigDefaultModel(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if agent.config.Model != "deepseek-chat" {
-		t.Errorf("default model = %q, want %q", agent.config.Model, "deepseek-chat")
+	if agent.config.Model != "deepseek-v4-flash" {
+		t.Errorf("default model = %q, want %q", agent.config.Model, "deepseek-v4-flash")
 	}
 }