refactor: Standardize data processing and update to Svelte 5 runes

This commit introduces a major refactoring of the data processing logic across multiple modules (events, archives, posts, sponsorships) to use a standardized pattern with . This improves consistency and maintainability.

Key changes:
- Replaced module-specific data processing with a generic helper.
- Removed deprecated  functions.
- Updated Svelte components to leverage the new Svelte 5 runes, simplifying state management.
- Fixed linting errors and updated test configurations.
- Added .

src/routes/journals/+layout.svelte

@@ -1,27 +1,21 @@
 <script lang="ts">
 /** @type {import('./$types').LayoutProps} */
-let log_lvl: number = 0;
+let log_lvl = $state(0);
 
 // *** Import Svelte specific
 // import { browser } from '$app/environment';
 import { goto } from '$app/navigation';
 
 // *** Import other supporting libraries
-// import * as icons from '@lucide/svelte';
 import {
-        Brain,
-        House, Library,
+        House,
         RefreshCw,
         Satellite
     } from '@lucide/svelte';
 
 // *** Import Aether specific variables and functions
-import type { key_val } from '$lib/stores/ae_stores';
-// import { ae_util } from '$lib/ae_utils/ae_utils';
-// import { api } from '$lib/api';
 import { ae_loc, ae_sess, ae_api, slct } from '$lib/stores/ae_stores';
 import { journals_loc, journals_slct, journals_trig } from '$lib/ae_journals/ae_journals_stores';
-// import { journals_func } from '$lib/ae_journals/ae_journals_functions';
 import Element_data_store from '$lib/elements/element_data_store_v2.svelte';
 import Help_tech from '$lib/app_components/e_app_help_tech.svelte';
 
@@ -39,26 +33,16 @@ $journals_loc.qry__offset = 0;
 
 // Quickly save the data passed from the parent(s) to the Svelte stores, localStorage, and other.
 $slct.account_id = data.account_id;
+$effect(() => {
 if (log_lvl) {
     console.log(`$slct.account_id = `, $slct.account_id);
 }
+});
 let ae_acct = data[$slct.account_id];
-// console.log(`ae_acct = `, ae_acct);
-
-// if (browser) {
-//     console.log(`Browser: ${browser}`);
-//     journals_func.handle_db_save_ae_obj_li__journal({
-//         obj_type: 'journal',
-//         obj_li: [ae_acct.slct.journal_obj_li],
-//     });
-// }
 
 $journals_slct.journal_id = ae_acct.slct.journal_id;
-// $journals_slct.journal_obj = ae_acct.slct.journal_obj;
 $journals_slct.journal_obj_li = ae_acct.slct.journal_obj_li;
 
-// let ae_promises: key_val = {};
-
 
 let nav_y_height = $state(0);
 
@@ -70,17 +54,17 @@ let yTop = $state(0);
 let yScroll = $state(0);
 let yHeight = $state(0);
 
-let scroll_y = $state(0);
-
-function parse_scroll() {
-    // console.log(`parse_scroll() called`);
-    xLeft = box.scrollLeft;
-    xScroll = box.scrollWidth;
-    xWidth = box.clientWidth;
-    yTop = box.scrollTop;
-    yHeight = box.clientHeight;
-    yScroll = box.scrollHeight;
-    // console.log(`parse_scroll() called: ${yTop}`);
+function handle_scroll() {
+    // console.log(`handle_scroll() called`);
+    if (box) {
+        xLeft = box.scrollLeft;
+        xScroll = box.scrollWidth;
+        xWidth = box.clientWidth;
+        yTop = box.scrollTop;
+        yHeight = box.clientHeight;
+        yScroll = box.scrollHeight;
+        // console.log(`handle_scroll() called: ${yTop}`);
+    }
 }
 
 function scroll_container() {
@@ -101,7 +85,7 @@ function scroll_container() {
     id="ae_main_content"
     bind:clientHeight={$ae_loc.iframe_height}
     bind:this={box}
-    onscroll={parse_scroll}
+    onscroll={handle_scroll}
     class:iframe={$ae_loc?.iframe}
     class="
         ae_journals
@@ -286,6 +270,7 @@ function scroll_container() {
         class:ae_btn_warning_filled={yTop > 1500}
         onclick={() => {
             log_lvl = 1;
+            $effect(() => {
             if (log_lvl) {
                 console.log(`Scroll to top button clicked. scroll_y: ${scroll_y} scrollTop: ${scroll_container().scrollTop}`, scroll_container());
                 // document.getElementById('ae_idaa')?.scrollTo(0, 0);
@@ -293,6 +278,7 @@ function scroll_container() {
                 // document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
                 // document.body.scrollTop = 0; // For Safari
             }
+            });
 
             console.log('Not Safari, using smooth scroll to top');
             document.getElementById('ae_main_content')?.scrollTo({
@@ -356,6 +342,7 @@ function scroll_container() {
         class:ae_btn_warning_filled={yTop > 1500}
         onclick={() => {
             log_lvl = 1;
+            $effect(() => {
             if (log_lvl) {
                 console.log(`Scroll to bottom button clicked. scroll_y: ${scroll_y} scrollTop: ${scroll_container().scrollTop}`, scroll_container());
                 // document.getElementById('ae_idaa')?.scrollTo(0, 0);
@@ -363,6 +350,7 @@ function scroll_container() {
                 // document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
                 // document.body.scrollTop = 0; // For Safari
             }
+            });
 
             console.log('Not Safari, using smooth scroll to bottom');
             document.getElementById('ae_main_content')?.scrollTo({