final StringWriter stringWriter = new StringWriter();
        final PrintWriter writer = new PrintWriter(stringWriter);

        chatApiManager.sendSseEvent(writer, "chunk", Map.of("content", "Special chars: \"quotes\" and \\ backslash"));

        final String output = stringWriter.toString();
        assertTrue(output.contains("event: chunk"));
        // JSON should properly escape special characters

labels.q=Query
labels.roles=Ruoli
labels.suggestSearchLog=Log di ricerca suggeriti
labels.suggestWord=Parola suggerita
labels.targetLabel=Etichetta
labels.term=Termine di ricerca
labels.fields=Campi
labels.ex_q=Query estesa
labels.oldPassword=Password attuale
labels.newPassword=Nuova password
labels.confirmNewPassword=Conferma nuova password

labels.menu_system=Sistema
labels.menu_wizard=Procedura guidata

    /** Shared ObjectMapper instance for JSON processing. */
    protected static final ObjectMapper objectMapper = new ObjectMapper();

    /** Buffer size reserved when truncating context to fit within max chars limit. */
    protected static final int CONTEXT_TRUNCATION_BUFFER = 100;

    /** The HTTP client used for API communication. */
    protected CloseableHttpClient httpClient;

labels.q=Consulta
labels.roles=Roles
labels.suggestSearchLog=Registro de búsqueda para sugerencias
labels.suggestWord=Palabra sugerida
labels.targetLabel=Etiqueta
labels.term=Término de búsqueda
labels.fields=Campos
labels.ex_q=Consulta extendida
labels.oldPassword=Contraseña actual
labels.newPassword=Nueva contraseña
labels.confirmNewPassword=Confirmar nueva contraseña
labels.menu_system=Sistema
labels.menu_wizard=Asistente

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t-child {\n  margin-bottom: 0;\n}\n\n.card-link {\n  &:hover {\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n\n  + .card-link {\n    margin-left: var(--#{$prefix}card-spacer-x);\n  }\n}\n\n//\n// Optional textual caps\n//\n\n.card-header {\n  padding: var(--#{$prefix}card-cap-padding-y) var(--#{$prefix}card-cap-padding-x);\n  margin-bottom: 0; // Removes the default margin-bottom of <hN>\n  color: var(--#{$prefix}card-cap-color);\n  background-color: var(--#{$p...

-$card-spacer-y * .5;\n  margin-bottom: 0;\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link {\n  @include hover() {\n    text-decoration: none;\n  }\n\n  + .card-link {\n    margin-left: $card-spacer-x;\n  }\n}\n\n//\n// Optional textual caps\n//\n\n.card-header {\n  padding: $card-spacer-y $card-spacer-x;\n  margin-bottom: 0; // Removes the default margin-bottom of <hN>\n  color: $card-cap-color;\n  background-color: $card-cap-bg;\n  border-bottom: $card-border-width solid $card-border-color;\n\n...