feat(journals): implement Quick Add and unified Append/Prepend shared component

- Created AeCompJournalEntryQuickAdd for high-velocity note creation
- Extracted robust append/prepend logic from List View into AeCompModalJournalEntryAppend
- Unified List and Detail views to use the shared modal for content manipulation
- Added explicit Append/Prepend actions to Journal Entry settings menu
- Updated TODO.md and Journals module documentation

src/routes/journals/JournalEntry_SettingsMenu.svelte

@@ -9,7 +9,8 @@
         Eye, EyeOff, ShieldCheck, ShieldMinus, 
         Clock, X, Trash2, Settings, Shapes,
         Copy, RemoveFormatting, CodeXml, TypeOutline,
-        History, Pencil, PenLine, FileX, SquareLibrary
+        History, Pencil, PenLine, FileX, SquareLibrary,
+        ArrowUpToLine, ArrowDownToLine
     } from '@lucide/svelte';
     import { ae_loc, ae_api } from '$lib/stores/ae_stores';
     import { journals_slct, journals_loc, journals_sess } from '$lib/ae_journals/ae_journals_stores';
@@ -26,6 +27,8 @@
         onSave: () => void;
         onDecryptHistory: () => void;
         onChangeJournal: () => void;
+        onAppend?: () => void;
+        onPrepend?: () => void;
         log_lvl?: number;
     }
 
@@ -37,6 +40,8 @@
         onSave,
         onDecryptHistory,
         onChangeJournal,
+        onAppend,
+        onPrepend,
         log_lvl = 0 
     }: Props = $props();
 
@@ -83,6 +88,16 @@
 </script>
 
 <div class="space-y-4 min-w-[280px]">
+    <!-- Append/Prepend Actions -->
+    <div class="grid grid-cols-2 gap-2">
+         <button class="btn btn-sm variant-soft-secondary" onclick={onPrepend} title="Prepend to Note">
+             <ArrowUpToLine size="1.2em" class="mr-1"/> Prepend
+         </button>
+         <button class="btn btn-sm variant-soft-secondary" onclick={onAppend} title="Append to Note">
+             <ArrowDownToLine size="1.2em" class="mr-1"/> Append
+         </button>
+    </div>
+
     <!-- Category selection -->
     <div class="flex items-center gap-2">
         <Shapes size="1.1em" class="text-surface-500" />