Enhance audience management features with new components and API integrations

- Added `AssignCoursesModal`, `AudienceMemberRow`, `AudienceTable`, and related components for improved audience management UI.
- Implemented audience invite actions including resend and revoke functionality.
- Updated audience API to support importing members and assigning courses.
- Refactored audience data handling to include status and invite management.
- Improved overall user experience with pagination and selection features in the audience table.

apps/api/src/utils/org.ts

@@ -0,0 +1,25 @@
+/** Normalize JSONB organization-invite metadata for course ids (matches importAudienceMembers storage). */
+export function parseCourseIdsFromInviteMetadata(metadata: unknown): string[] {
+  let obj: Record<string, unknown> | null = null;
+  if (metadata == null) {
+    return [];
+  }
+  if (typeof metadata === 'string') {
+    try {
+      const parsed = JSON.parse(metadata) as unknown;
+      obj = typeof parsed === 'object' && parsed !== null ? (parsed as Record<string, unknown>) : null;
+    } catch {
+      return [];
+    }
+  } else if (typeof metadata === 'object') {
+    obj = metadata as Record<string, unknown>;
+  }
+  if (!obj) {
+    return [];
+  }
+  const raw = obj.courseIds ?? obj.course_ids;
+  if (!Array.isArray(raw)) {
+    return [];
+  }
+  return raw.filter((id): id is string => typeof id === 'string' && id.length > 0);
+}