feat(journals): expose export functionality in UI

- Added 'Export Entries' button to Journal Index and Journal Detail views
- Wired buttons to trigger the new export modal

src/routes/journals/[journal_id]/+page.svelte

@@ -66,6 +66,8 @@
     import Journal_entry_obj_li from './../ae_comp__journal_entry_obj_li.svelte';
     // import Journal_entry_obj_qry from './../ae_comp__journal_entry_obj_qry.svelte';
     import Journal_obj_id_edit from '../ae_comp__journal_obj_id_edit.svelte';
+    import AeCompModalJournalExport from '../ae_comp__modal_journal_export.svelte';
+    import { FileDown } from '@lucide/svelte';
 
     // let ae_promises: key_val = {};
     // let ae_tmp: key_val = {};
@@ -74,6 +76,8 @@
     // Variables
     // *** Quickly pull out data from parent(s)
     let ae_acct = data[$slct.account_id];
+    let show_export_modal = $state(false);
+
     $effect(() => {
         if (log_lvl > 1) {
             console.log(`ae_acct = `, ae_acct);
@@ -327,6 +331,15 @@
 
     <Journal_view {lq__journal_obj} {lq__journal_entry_obj_li} />
 
+    <!-- Export Toolbar -->
+    {#if $lq__journal_entry_obj_li && $lq__journal_entry_obj_li.length > 0}
+        <div class="flex justify-end w-full max-w-(--breakpoint-lg) px-2 pb-2">
+            <button class="btn btn-sm variant-soft-secondary hover:variant-filled-secondary" onclick={() => show_export_modal = true}>
+                <FileDown class="mr-2" size="1em" /> Export Entries
+            </button>
+        </div>
+    {/if}
+
     {#if $lq__journal_entry_obj_li && $lq__journal_entry_obj_li?.length}
         <Journal_entry_obj_li {lq__journal_obj} {lq__journal_entry_obj_li} />
     {:else}
@@ -344,6 +357,13 @@
         {lq__journal_obj}
         show={$journals_sess.show__modal_edit__journal_obj}
     />
+
+    <!-- Modal: Bulk Export -->
+    <AeCompModalJournalExport
+        bind:open={show_export_modal}
+        entries={$lq__journal_entry_obj_li ?? []}
+        onClose={() => show_export_modal = false}
+    />
 {:else}
     <section class="main_content grow px-1 md:px-2 pb-28 flex flex-col gap-1 items-center">
         <p class="text-center">You must be logged in as the owner to view this Journal.</p>