Refactor frontend data models

src-ui/src/app/data/document-suggestions.ts

@@ -0,0 +1,11 @@
+export interface DocumentSuggestions {
+  tags?: number[]
+
+  correspondents?: number[]
+
+  document_types?: number[]
+
+  storage_paths?: number[]
+
+  dates?: string[] // ISO-formatted date string e.g. 2022-11-03
+}