Restore server-side 'conference' filter and finalize IDAA migration

- Restored 'conference' search filter in ae_events__event.ts (now supported by backend)
- Maintained local filtering as a safety fallback
- Finalized Bulletin Board (Posts) V3 migration
- Added editable_fields for all remaining IDAA-related core objects

src/lib/ae_events/ae_events__event.ts

@@ -131,9 +131,10 @@ export async function load_ae_obj_li__event({
     let promise;
     
     if (qry_conference !== null) {
-        // V3 Search does not permit 'conference' field yet. 
-        // We pass no search_query and filter locally in the .then() block below.
-        const search_query: any = { and: [] };
+        // V3 Search now permits 'conference' field.
+        const search_query: any = {
+            and: [{ field: 'conference', op: 'eq', value: qry_conference }]
+        };
         
         promise = api.search_ae_obj_v3({
             api_cfg,
@@ -169,10 +170,8 @@ export async function load_ae_obj_li__event({
         if (event_obj_li_get_result) {
             let filtered_results = event_obj_li_get_result;
 
-            // Workaround: V3 Search does not yet support filtering on the 'conference' field.
-            // We filter locally for now to maintain frontend behavior.
+            // Optional: Keep local filter as a fallback safety
             if (qry_conference !== null) {
-                if (log_lvl) console.log(`Local filtering for conference=${qry_conference}`);
                 filtered_results = event_obj_li_get_result.filter((ev: any) => ev.conference === qry_conference);
             }