Fix TypeScript build errors

- Remove unused imports in invites.ts
- Fix InviteManagement component (remove unused props, unneeded code)
- Fix BandPage.tsx (remove currentMemberId, remove UserSearch for now)
- Remove unused imports in types/invite.ts

Build errors resolved:
- TS6133: unused variables
- TS2304: missing variables
- TS2307: module not found

Note: UserSearch temporarily disabled - needs backend support for listing non-members

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

web/src/api/invites.ts

@@ -42,6 +42,6 @@ export const createInvite = (
  */
 export const listNonMemberUsers = (bandId: string, search?: string) => {
   // TODO: Implement this backend endpoint if needed
-  // For now, can use existing member search with filter
+  // For now, just return empty - the invite flow works with tokens
   return Promise.resolve([] as { id: string; display_name: string; email: string }[]);
 };