Function persistDownloadedData

persistDownloadedData(
    data: DownloadedData,
    riksmote: string,
    mcpToolMap?: Partial<Record<DocumentTypeKey, string>>,
    dataRoot?: string,
): PersistenceResult
Persist all downloaded MCP data to the structured analysis/data/ tree.
Documents are organised by type under analysis/data/documents/{type}/. Date-stamped data (votes, events) is further partitioned by date.
Data files contain only raw source data (no metadata injection) to ensure parallel workflows writing the same document produce identical output, preventing git merge conflicts.
Parameters
- data: DownloadedData
  Downloaded data collections from downloadAllDocuments()
- riksmote: string
  Current riksmöte identifier (e.g. "2025/26")
- OptionalmcpToolMap: Partial<Record<DocumentTypeKey, string>>
  Map of document type → MCP tool name for provenance
- dataRoot: string = DATA_ROOT
  Override for the data root directory (for testing)
Returns PersistenceResult
Summary of files written and skipped.
- Defined in scripts/parliamentary-data/persistence/documents.ts:45