feat(ui): add bulkExportMeetings client wrapper (T8.5, FR-STORE-4)

src/lib/api.ts

@@ -324,6 +324,20 @@ export const api = {
   // dest is a file path for md/pdf/docx, a folder for bundle.
   exportMeeting: (meetingId: MeetingId, dest: string, format: "md" | "pdf" | "docx" | "bundle") =>
     invoke<string>("export_meeting", { meetingId, dest, format }),
+  // Every meeting matching tag/date filters, one file (or bundle folder) per
+  // meeting under destDir. Returns the count actually exported (T8.5, FR-STORE-4).
+  bulkExportMeetings: (
+    destDir: string,
+    format: "md" | "pdf" | "docx" | "bundle",
+    filter?: Pick<MeetingFilter, "tag" | "from" | "to">,
+  ) =>
+    invoke<number>("bulk_export_meetings", {
+      destDir,
+      format,
+      tag: filter?.tag,
+      from: filter?.from,
+      to: filter?.to,
+    }),
 
   llmStatus: () => invoke<LlmStatus>("llm_status"),
   // provider ∈ ollama|custom|anthropic|openai|off; apiKey (hosted) → OS credential store (ADR-0011).