/**
 * Supabase PostgREST connector (C1).
 * Safe RO access to the ZION mirror (Codes sync) when live SQL from Codes is closed on the PC.
 * Raw SQL → only simple SELECT ... FROM schema.table [LIMIT n] is accepted.
 */
import type { Connector, ConnectorCapabilities, ConnectorConfig, QueryResult, SchemaTable } from '../types.js';
export declare class SupabaseRestConnector implements Connector {
    name: string;
    description: string;
    capabilities: ConnectorCapabilities;
    private baseUrl;
    private apiKey;
    private anonKey;
    private schema;
    private allow;
    /** Configured Postgres schema — callers must qualify tables with this, never a hard-coded name. */
    get schemaName(): string;
    constructor(config: ConnectorConfig);
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    listTables(): Promise<SchemaTable[]>;
    describeTable(table: string): Promise<SchemaTable>;
    query(sql: string): Promise<QueryResult>;
    search(): Promise<QueryResult>;
    /** Exported for unit tests */
    parseSimpleSelect(sql: string): {
        table: string;
        columns: string[];
        limit: number;
    };
    private headers;
    private normalizeTable;
    private assertAllowed;
}
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