export declare function isCsmEnabled(): boolean;
export declare const CSM: {
    /** e.g. https://csm.vuphong.vn/api/integrations (no trailing slash) */
    baseUrl(): string;
    key(): string;
    /**
     * Optional Host header override. Lets us hit CSM over loopback
     * (http://localhost:8001) while still presenting Host: csm.vuphong.vn, which
     * CSM's integration guard requires to accept a plaintext loopback request
     * (fromTrustedTlsProxy). Avoids the flaky public-domain hairpin round-trip.
     */
    hostHeader(): string;
    /** Server-to-server request timeout (ms). Short on purpose. */
    timeoutMs(): number;
    /** In-memory directory cache TTL (ms). RAM only, no DB. */
    dirCacheMs(): number;
};
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