Restore Event Session search stability and advance platform-wide string ID standardization

- Restored Event Session search by standardizing on 'event_id' for Dexie queries and implementing dual-layer filtering (local + API guard) to prevent broad results from clobbering filtered views.
- Advanced String-Only ID Standardization (Phase 2) by updating generic object processors across all event library modules to support both base IDs and legacy '_random' variants.
- Refactored Event Presenter and Presentation components to support standardized '_id_li' props while maintaining backward compatibility.
- Standardized common helper identifiers to snake_case (e.g., 'prevent_default') in the Events module.
- Verified Staff and Poster email notification logic in the Bulletin Board module.
- Updated .gitignore and cleaned up test artifacts.

src/routes/events/[event_id]/(pres_mgmt)/presenter/ae_comp__event_presenter_obj_li_wrapper.svelte

@@ -2,6 +2,7 @@
     interface Props {
         container_class_li?: string | Array<string>;
         display_mode?: string; // 'default', 'compact', 'minimal', 'launcher'
+        event_presenter_id_li?: Array<string>;
         event_presenter_id_random_li?: Array<string>;
         link_to_type: string;
         link_to_id: string;
@@ -12,6 +13,7 @@
     let {
         container_class_li = [],
         display_mode = 'default',
+        event_presenter_id_li = [],
         event_presenter_id_random_li = [],
         link_to_type,
         link_to_id,
@@ -33,8 +35,8 @@
     // let ae_tmp: key_val = {};
     // let ae_triggers: key_val = {};
 
-    let dq__where_type_id_val: string = `${link_to_type}_id_random`;
-    let dq__where_eq_id_val: string = link_to_id;
+    let dq__where_type_id_val = $derived(`${link_to_type}_id`);
+    let dq__where_eq_id_val = $derived(link_to_id);
 
     // *** Functions and Logic
     let lq__event_presenter_obj_li = $derived(
@@ -45,6 +47,10 @@
                     .equals(dq__where_eq_id_val)
                     .sortBy('full_name');
 
+                return results;
+            } else if (event_presenter_id_li.length > 0) {
+                let results = await db_events.presenter.bulkGet(event_presenter_id_li);
+
                 return results;
             } else if (event_presenter_id_random_li.length > 0) {
                 let results = await db_events.presenter.bulkGet(event_presenter_id_random_li);