Show AI tools only in edit mode; open existing summary without regenerating

- Hide AI tools panel when entry is not in edit mode
- Clicking AI button when a summary already exists opens it directly
  instead of triggering a new API call; Re-run still available in modal

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/ae_elements/AE_AITools.svelte

@@ -157,9 +157,17 @@ function handle_save() {
     <!-- Trigger Button -->
     <button
         type="button"
-        onclick={generate_ai_result}
+        onclick={() => {
+            if (summary) {
+                tmp_summary = summary;
+                active_tab = 'result';
+                show_modal = true;
+            } else {
+                generate_ai_result();
+            }
+        }}
         class={buttonClass}
-        title="Generate AI summary/analysis">
+        title={summary ? 'View existing AI summary' : 'Generate AI summary/analysis'}>
         {#await ae_promises}
             <Loader class="mr-1 inline-block animate-spin" size="1.2em" />
             <span class="text-sm">Processing...</span>

src/routes/journals/ae_comp__journal_entry_obj_id_view.svelte

@@ -487,13 +487,15 @@ let modal_mode: 'append' | 'prepend' | 'auto' = $state('auto');
                     ] == 'current'
                         ? 'ring-primary-500/40 ring-2 ring-inset'
                         : ''}">
-                    <AE_Comp_Journal_Entry_AiTools
-                        content={typeof tmp_entry_obj.content === 'string'
-                            ? tmp_entry_obj.content
-                            : ''}
-                        bind:summary={tmp_entry_obj.summary}
-                        on_save={() => update_journal_entry()}
-                        {log_lvl} />
+                    {#if $journals_loc.entry.edit_kv[$lq__journal_entry_obj?.journal_entry_id] === 'current'}
+                        <AE_Comp_Journal_Entry_AiTools
+                            content={typeof tmp_entry_obj.content === 'string'
+                                ? tmp_entry_obj.content
+                                : ''}
+                            bind:summary={tmp_entry_obj.summary}
+                            on_save={() => update_journal_entry()}
+                            {log_lvl} />
+                    {/if}
 
                     <AE_Comp_Journal_Entry_Editor
                         entry={$lq__journal_entry_obj}