/**
 * Linked-entity filters → `keywords` references (issue #247).
 *
 * BoondManager's list endpoints have **no** `companyId` / `projectId` /
 * `resourceId` query parameters. A related entity is selected through a
 * prefixed reference inside `keywords` — `CSOC<id>` (company), `PRJ<id>`
 * (project), `COMP<id>` (resource), `CAND<id>` (candidate), `CCON<id>`
 * (contact), `AO<id>` (opportunity), `ACH<id>` (purchase), `BDC<id>` (order),
 * `FACT<id>` (invoice), `MIS<id>` (delivery), `PROD<id>` (product),
 * `CTR<id>` (contract) — documented per endpoint in the RAML and verified
 * against the live API on 2026-09-25: `GET /invoices?companyId=6221` returned
 * the whole table (29 893 rows, same as with no filter at all), while
 * `keywords=CSOC6221` returned 2. An unknown query parameter is ignored
 * silently, so a tool that forwarded `companyId` verbatim answered "the
 * invoices of X" with *every* invoice, presented as filtered.
 *
 * The search schemas keep the `*Id` fields — they are what a model reaches
 * for — and every search handler runs its params through `toKeywordReferences`
 * before building the query, so the conversion cannot be forgotten per domain.
 * Not every endpoint honours every prefix (the RAML lists them); a prefix an
 * endpoint does not know simply matches nothing, which is still a visible
 * "0 results", never a silently unfiltered page.
 */
export declare const KEYWORD_PREFIX_BY_FILTER: {
    readonly candidateId: "CAND";
    readonly resourceId: "COMP";
    readonly contactId: "CCON";
    readonly companyId: "CSOC";
    readonly projectId: "PRJ";
    readonly opportunityId: "AO";
    readonly purchaseId: "ACH";
    readonly orderId: "BDC";
    readonly invoiceId: "FACT";
    readonly deliveryId: "MIS";
    readonly productId: "PROD";
    readonly contractId: "CTR";
};
export type LinkedEntityFilter = keyof typeof KEYWORD_PREFIX_BY_FILTER;
/**
 * Move every linked-entity `*Id` filter present in `params` into `keywords`
 * as `<PREFIX><id>` (appended after the caller's own keywords, space
 * separated) and drop the `*Id` keys. Keys that are absent or `undefined` are
 * left alone; other keys pass through untouched.
 */
export declare function toKeywordReferences<T extends Record<string, unknown>>(params: T): Omit<T, LinkedEntityFilter> & {
    keywords?: string;
};
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