/**
 * Embedding providers — pluggable, zero-config auto-detection.
 *
 *   AIDIMAG_EMBEDDINGS = auto (default) | openai | ollama | bedrock | off
 *
 * auto: OpenAI if OPENAI_API_KEY is set, else Ollama if reachable, else off
 * (search degrades gracefully to FTS-only — aidimag never *requires* embeddings).
 *
 * Bedrock is explicit-only (AIDIMAG_EMBEDDINGS=bedrock, never auto-detected —
 * probing would make a billable AWS call). Credentials come from the standard
 * AWS chain (env vars, ~/.aws profiles, SSO, instance roles).
 *   AIDIMAG_BEDROCK_EMBED_MODEL (default amazon.titan-embed-text-v2:0, dim 1024)
 *   AIDIMAG_BEDROCK_REGION      (default: AWS SDK resolution)
 */
export interface EmbeddingProvider {
    readonly name: string;
    readonly model: string;
    readonly dim: number;
    embed(texts: string[]): Promise<number[][]>;
}
/** Resolve the configured/auto-detected provider (cached per process). */
export declare function getEmbeddingProvider(): Promise<EmbeddingProvider | null>;
/** Reset the cached provider so the next call re-detects (e.g. after Ollama setup). */
export declare function resetEmbeddingProviderCache(): void;