Resolve a stable document identifier from the fields used across MCP payloads.
Falls back through dok_id, dokument_id, and dokumentnamn, then returns the supplied fallback when none of those identifiers are available.
dok_id
dokument_id
dokumentnamn
Resolve a stable document identifier from the fields used across MCP payloads.
Falls back through
dok_id,dokument_id, anddokumentnamn, then returns the supplied fallback when none of those identifiers are available.