Added a configurable timeout knob

internal/usecase/runner_test.go

@@ -117,11 +117,12 @@ func TestRunnerRunSuccessful(t *testing.T) {
 			Version:      "1.0.0",
 			OutputFormat: domain.FormatMarkdown,
 			ModelDefaults: domain.ModelTarget{
-				Endpoint:    "ep1",
-				Model:       "model-default",
-				Temperature: 0.4,
-				MaxTokens:   200,
-				TopP:        0.9,
+				Endpoint:       "ep1",
+				Model:          "model-default",
+				Temperature:    0.4,
+				MaxTokens:      200,
+				TopP:           0.9,
+				TimeoutSeconds: 90,
 			},
 			Validation: domain.OutputContract{
 				ValidationMode: domain.ValidationBasic,
@@ -158,9 +159,10 @@ func TestRunnerRunSuccessful(t *testing.T) {
 			"glossary":   {Type: domain.ArtifactRefFile, URI: "a://g"},
 		},
 		Model: &domain.ModelTarget{
-			Model:       "model-override",
-			Temperature: 0,
-			MaxTokens:   0,
+			Model:          "model-override",
+			Temperature:    0,
+			MaxTokens:      0,
+			TimeoutSeconds: 0,
 		},
 	})
 	if err != nil {
@@ -214,6 +216,9 @@ func TestRunnerRunSuccessful(t *testing.T) {
 	if llmClient.lastReq.Target.Temperature != 0.4 {
 		t.Fatalf("expected zero-valued request field not to override default temperature, got %v", llmClient.lastReq.Target.Temperature)
 	}
+	if llmClient.lastReq.Target.TimeoutSeconds != 90 {
+		t.Fatalf("expected zero-valued request timeout not to override default timeout, got %d", llmClient.lastReq.Target.TimeoutSeconds)
+	}
 }
 
 func TestRunnerRunProfileLoadFailure(t *testing.T) {
@@ -231,6 +236,16 @@ func TestRunnerRunProfileLoadFailure(t *testing.T) {
 	}
 }
 
+func TestMergeModelTargetTimeoutOverride(t *testing.T) {
+	base := domain.ModelTarget{TimeoutSeconds: 30}
+	override := &domain.ModelTarget{TimeoutSeconds: 75}
+
+	got := mergeModelTarget(base, override)
+	if got.TimeoutSeconds != 75 {
+		t.Fatalf("expected timeout override to apply, got %d", got.TimeoutSeconds)
+	}
+}
+
 func TestRunnerRunArtifactLoadFailure(t *testing.T) {
 	runner := NewRunner(
 		&fakeProfileRepo{profile: minimalProfile()},