Add executive meeting management system with role-based access

Implement a new API endpoint and UI for managing executive meetings, including role-based access control and database schema changes for meeting data and attendees.

lib/db/src/schema/index.ts

@@ -12,3 +12,4 @@ export * from "./password-reset-tokens";
 export * from "./notes";
 export * from "./groups";
 export * from "./audit-logs";
+export * from "./executive-meetings";