chore: move ae_events_functions.ts into ae_events/ module

Relocates the functions file from lib root into its module directory,
matching the pattern used by all other modules (ae_journals, ae_archives, etc.).
Updated all 85 import paths from \$lib/ae_events_functions → \$lib/ae_events/ae_events_functions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/routes/events/+layout.ts

@@ -3,7 +3,7 @@ console.log(`ae_events +layout.ts`);
 
 // Imports
 // import { browser } from '$app/environment';
-// import { events_func } from '$lib/ae_events_functions';
+// import { events_func } from '$lib/ae_events/ae_events_functions';
 
 export async function load({ parent }) {
     const log_lvl: number = 0;