feat(backend): add kiro account support

backend/internal/service/kiro_error_classifier_test.go

@@ -0,0 +1,66 @@
+package service
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestClassifyKiroHTTPErrorBadRequestCategories(t *testing.T) {
+	tests := []struct {
+		name string
+		body string
+		want string
+	}{
+		{
+			name: "schema",
+			body: `{"message":"Improperly formed request: inputSchema.properties must be an object"}`,
+			want: kiroErrorBadRequestSchema,
+		},
+		{
+			name: "tool pairing",
+			body: `{"message":"tool_use must be paired with a matching tool_result"}`,
+			want: kiroErrorBadRequestToolPairing,
+		},
+		{
+			name: "invalid model id",
+			body: `{"message":"invalid modelId: model not supported"}`,
+			want: kiroErrorBadRequestInvalidModel,
+		},
+		{
+			name: "invalid model upstream",
+			body: `{"error":{"message":"Invalid model. Please select a different model to continue.","type":"upstream_error"}}`,
+			want: kiroErrorBadRequestInvalidModel,
+		},
+		{
+			name: "invalid model reason",
+			body: `{"message":"model route unavailable","reason":"INVALID_MODEL_ID"}`,
+			want: kiroErrorBadRequestInvalidModel,
+		},
+		{
+			name: "auth",
+			body: `{"error":"invalid_grant","message":"Invalid refresh token provided"}`,
+			want: kiroErrorBadRequestAuth,
+		},
+		{
+			name: "quota",
+			body: `{"message":"resource has been exhausted"}`,
+			want: kiroErrorBadRequestQuota,
+		},
+		{
+			name: "unknown",
+			body: `{"message":"bad request"}`,
+			want: kiroErrorBadRequestUnknown,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			classification := classifyKiroHTTPError(http.StatusBadRequest, tt.body)
+			require.Equal(t, tt.want, classification.Category)
+			require.Equal(t, http.StatusBadRequest, classification.StatusCode)
+			require.Equal(t, tt.body, classification.Message)
+		})
+	}
+}