Standardized robust chronological sorting across modules.

Updated '_process_generic_props' in multiple libraries to ensure 'updated' timestamp always falls back to 'created_on' or epoch start, preventing null values from breaking newest-first ordering in IndexedDB.

Aligned Recovery Meetings and Archives list views to use these pre-computed sort keys for consistent UI behavior even when 'updated_on' is null.

src/lib/ae_events/ae_events__event_presenter.ts

@@ -388,7 +388,7 @@ async function _process_generic_props<T extends Record<string, any>>({ obj_li, o
         const group = processed_obj.group ?? '0';
         const priority = processed_obj.priority ? 1 : 0;
         const sort = processed_obj.sort ?? '0';
-        const updated = processed_obj.updated_on ?? processed_obj.created_on;
+        const updated = processed_obj.updated_on ?? processed_obj.created_on ?? new Date(0).toISOString();
         const name = processed_obj.name ?? '';
         (processed_obj as any).tmp_sort_1 = `${group}_${priority}_${sort}_${updated}`;
         (processed_obj as any).tmp_sort_2 = `${group}_${priority}_${sort}_${name}_${updated}`;

src/lib/ae_journals/ae_journals__journal.ts

@@ -814,7 +814,7 @@ async function _process_generic_props<T extends Record<string, any>>({
         const group = processed_obj.group ?? '0';
         const priority = processed_obj.priority ? 1 : 0;
         const sort = processed_obj.sort ?? '0';
-        const updated = processed_obj.updated_on ?? processed_obj.created_on;
+        const updated = processed_obj.updated_on ?? processed_obj.created_on ?? new Date(0).toISOString();
         const name = processed_obj.name ?? '';
 
         (processed_obj as any).tmp_sort_1 =

src/lib/ae_journals/ae_journals__journal_entry.ts

@@ -943,7 +943,7 @@ async function _process_generic_props<T extends Record<string, any>>({
         const group = processed_obj.group ?? '0';
         const priority = processed_obj.priority ? 1 : 0;
         const sort = processed_obj.sort ?? '0';
-        const updated = processed_obj.updated_on ?? processed_obj.created_on;
+        const updated = processed_obj.updated_on ?? processed_obj.created_on ?? new Date(0).toISOString();
         const name = processed_obj.name ?? '';
 
         (processed_obj as any).tmp_sort_1 =

src/lib/ae_posts/ae_posts__post.ts

@@ -512,7 +512,7 @@ async function _process_generic_props<T extends Record<string, any>>({
         const group = processed_obj.group ?? '0';
         const priority = processed_obj.priority ? 1 : 0;
         const sort = processed_obj.sort ?? '0';
-        const updated = processed_obj.updated_on ?? processed_obj.created_on;
+        const updated = processed_obj.updated_on ?? processed_obj.created_on ?? new Date(0).toISOString();
         const name = processed_obj.username ?? processed_obj.name ?? '';
 
         (processed_obj as any).tmp_sort_1 = `${group}_${priority}_${sort}_${updated}`;

src/lib/ae_posts/ae_posts__post_comment.ts

@@ -336,7 +336,7 @@ async function _process_generic_props<T extends Record<string, any>>({
         const group = processed_obj.group ?? '0';
         const priority = processed_obj.priority ? 1 : 0;
         const sort = processed_obj.sort ?? '0';
-        const updated = processed_obj.updated_on ?? processed_obj.created_on;
+        const updated = processed_obj.updated_on ?? processed_obj.created_on ?? new Date(0).toISOString();
         const name = processed_obj.name ?? '';
 
         (processed_obj as any).tmp_sort_1 = `${group}_${priority}_${sort}_${updated}`;

src/routes/idaa/(idaa)/archives/ae_idaa_comp__archive_obj_li.svelte

@@ -43,9 +43,11 @@
                 const sortB = b.sort ?? 0;
                 if (sortA !== sortB) return sortB - sortA;
             } else if (qry_sort_mode === 'updated_desc') {
-                const dateA = new Date(a.updated_on || a.created_on).getTime();
+                // SORT: Most recently updated or created at the top (Refactored 2026-02-16)
-                const dateB = new Date(b.updated_on || b.created_on).getTime();
+                // ROBUSTNESS: Ensure fallback to created_on then to 0 to prevent NaN comparison issues
-                return dateB - dateA;
+                const date_a = new Date(a.updated_on ?? a.created_on ?? 0).getTime() || 0;
+                const date_b = new Date(b.updated_on ?? b.created_on ?? 0).getTime() || 0;
+                return date_b - date_a;
             }
 
             // Default fallback: Name

src/routes/idaa/(idaa)/recovery_meetings/+page.svelte

@@ -143,21 +143,15 @@
                     })
                     .toArray();
 
-                // Sort local results matching UI selection
+                // Sort local results matching UI selection (Refactored 2026-02-16)
                 if ($idaa_loc.recovery_meetings.qry__order_by === 'name') {
                     local_results.sort((a, b) =>
                         (a.name ?? '').localeCompare(b.name ?? '')
                     );
                 } else {
-                    local_results.sort((a, b) => {
+                    // Robust Chronological Sort using pre-computed tmp_sort_1
-                        const dateA = a.updated_on
+                    // Handles Priority, Manual Sort, and the updated_on/created_on fallback
-                            ? new Date(a.updated_on).getTime()
+                    local_results.sort((a, b) => (b.tmp_sort_1 ?? '').localeCompare(a.tmp_sort_1 ?? ''));
-                            : 0;
-                        const dateB = b.updated_on
-                            ? new Date(b.updated_on).getTime()
-                            : 0;
-                        return dateB - dateA;
-                    });
                 }
 
                 local_ids = local_results
@@ -226,6 +220,13 @@
                     return true;
                 });
 
+                // RE-SORT: Ensure perfect chronological order even if API puts NULLs last (Refactored 2026-02-16)
+                if ($idaa_loc.recovery_meetings.qry__order_by === 'name') {
+                    api_results.sort((a, b) => (a.name ?? '').localeCompare(b.name ?? ''));
+                } else {
+                    api_results.sort((a, b) => (b.tmp_sort_1 ?? '').localeCompare(a.tmp_sort_1 ?? ''));
+                }
+
                 const api_ids = api_results
                     .map((e: any) => String(e.id))
                     .filter(Boolean);

src/routes/idaa/(idaa)/recovery_meetings/ae_idaa_comp__event_obj_li_wrapper.svelte

@@ -78,17 +78,19 @@
                     .where(dq__where_type_id_val)
                     .equals(link_to_id);
 
-                if (order_by == 'name') {
+                const results = await base_query
-                    return await base_query
+                    .and((ev) => !ev.hide && !!ev.enable)
-                        .and((ev) => !ev.hide && !!ev.enable)
+                    .limit(limit > 0 ? limit : 500)
-                        .limit(limit > 0 ? limit : 500)
+                    .toArray();
-                        .sortBy('name');
+
+                if (order_by === 'name') {
+                    results.sort((a, b) => (a.name ?? '').localeCompare(b.name ?? ''));
                 } else {
-                    return await base_query
+                    // Robust Chronological Sort using pre-computed tmp_sort_1 (Refactored 2026-02-16)
-                        .and((ev) => !ev.hide && !!ev.enable)
+                    // This handles Group > Priority > Manual Sort > Date (with updated_on fallback)
-                        .limit(limit > 0 ? limit : 500)
+                    results.sort((a, b) => (b.tmp_sort_1 ?? '').localeCompare(a.tmp_sort_1 ?? ''));
-                        .sortBy('updated_on');
                 }
+                return results;
             }
             return null;
         });