added UI pane for backlinks!

frontend/app.js

@@ -236,7 +236,10 @@ function noteApp() {
         
         // Outline (TOC) state
         outline: [], // [{level: 1, text: 'Heading', slug: 'heading'}, ...]
-        
+
+        // Backlinks state
+        backlinks: [], // [{path: 'note.md', name: 'Note', references: [{line_number: 5, context: '...', type: 'wikilink'}]}]
+
         // Scroll sync state
         isScrolling: false,
         
@@ -524,6 +527,7 @@ function noteApp() {
                     this.noteContent = '';
                     this.currentNoteName = '';
                     this.outline = [];
+                    this.backlinks = [];
                     this.shareInfo = null; // Reset share info
                     document.title = this.appName;
                     
@@ -1315,6 +1319,7 @@ function noteApp() {
         extractOutline(content) {
             if (!content) {
                 this.outline = [];
+                this.backlinks = [];
                 return;
             }
             
@@ -1429,6 +1434,11 @@ function noteApp() {
                 }
             }
         },
+
+        // Navigate to a backlink (note that links to current note)
+        navigateToBacklink(backlinkPath) {
+            this.loadNote(backlinkPath);
+        },
         
         // Unified filtering logic combining tags and text search
         async applyFilters() {
@@ -2750,7 +2760,10 @@ function noteApp() {
                 
                 // Extract outline for TOC panel
                 this.extractOutline(data.content);
-                
+
+                // Store backlinks from API response
+                this.backlinks = data.backlinks || [];
+
                 // Initialize undo/redo history for this note (with cursor at start)
                 this.undoHistory = [{ content: data.content, cursorPos: 0 }];
                 this.redoHistory = [];
@@ -5625,6 +5638,7 @@ function noteApp() {
             this.noteContent = '';
             this.currentMedia = '';
             this.outline = [];
+            this.backlinks = [];
             document.title = this.appName;
             
             // Invalidate cache to force recalculation
@@ -5647,6 +5661,7 @@ function noteApp() {
             this.noteContent = '';
             this.currentMedia = '';
             this.outline = [];
+            this.backlinks = [];
             this.mobileSidebarOpen = false;
             document.title = this.appName;
             

frontend/index.html

@@ -1453,6 +1453,28 @@
                         x-text="outline.length > 9 ? '9+' : outline.length"
                     ></span>
                 </button>
+
+                <!-- Backlinks -->
+                <button
+                    class="icon-rail-btn relative"
+                    :class="{'active': activePanel === 'backlinks'}"
+                    @click="activePanel = 'backlinks'"
+                    :title="t('backlinks.title')"
+                    :aria-label="t('backlinks.title')"
+                >
+                    <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4"></path>
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14 4h6m0 0v6m0-6L10 14"></path>
+                    </svg>
+                    <!-- Backlinks count badge -->
+                    <span
+                        x-show="backlinks.length > 0"
+                        x-cloak
+                        class="absolute -top-1 -right-1 w-4 h-4 text-[9px] font-bold rounded-full flex items-center justify-center"
+                        style="background-color: var(--accent-primary); color: white;"
+                        x-text="backlinks.length > 9 ? '9+' : backlinks.length"
+                    ></span>
+                </button>
                 
                 <div class="icon-rail-spacer"></div>
                 
@@ -1847,7 +1869,75 @@
                     </div>
                 </div>
                 <!-- END OUTLINE PANEL -->
-                
+
+                <!-- ==================== BACKLINKS PANEL ==================== -->
+                <div x-show="activePanel === 'backlinks'" x-transition:enter="transition ease-out duration-150" x-transition:enter-start="opacity-0" x-transition:enter-end="opacity-100" class="flex flex-col h-full">
+                    <!-- Backlinks Header -->
+                    <div class="flex-shrink-0 px-3 py-2 border-b flex items-center justify-between" style="border-color: var(--border-primary);">
+                        <span class="text-xs font-semibold uppercase tracking-wide" style="color: var(--text-tertiary);" x-text="t('backlinks.title')"></span>
+                        <span class="text-xs px-1.5 py-0.5 rounded" style="background-color: var(--bg-tertiary); color: var(--text-tertiary);" x-text="backlinks.length"></span>
+                    </div>
+
+                    <!-- Scrollable content: Backlinks items -->
+                    <div class="flex-1 overflow-y-auto custom-scrollbar">
+                        <div class="py-2">
+                            <!-- When note is open and has backlinks -->
+                            <template x-if="currentNote && backlinks.length > 0">
+                                <div>
+                                    <template x-for="(bl, index) in backlinks" :key="index">
+                                        <button
+                                            @click="navigateToBacklink(bl.path)"
+                                            class="hover-accent w-full text-left px-3 py-2 text-sm border-b"
+                                            style="color: var(--text-primary); border-color: var(--border-primary);"
+                                        >
+                                            <!-- Note name -->
+                                            <div class="flex items-center gap-2 mb-1">
+                                                <svg class="w-4 h-4 flex-shrink-0" style="color: var(--accent-primary);" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"></path>
+                                                </svg>
+                                                <span class="font-medium truncate" x-text="bl.name"></span>
+                                            </div>
+                                            <!-- References/Context snippets -->
+                                            <template x-for="(ref, refIdx) in bl.references.slice(0, 2)" :key="refIdx">
+                                                <div class="ml-6 text-xs truncate" style="color: var(--text-tertiary);">
+                                                    <span class="opacity-60" x-text="'L' + ref.line_number + ':'"></span>
+                                                    <span x-text="ref.context"></span>
+                                                </div>
+                                            </template>
+                                            <template x-if="bl.references.length > 2">
+                                                <div class="ml-6 text-xs" style="color: var(--text-tertiary);">
+                                                    <span x-text="'+' + (bl.references.length - 2) + ' ' + t('backlinks.more_refs')"></span>
+                                                </div>
+                                            </template>
+                                        </button>
+                                    </template>
+                                </div>
+                            </template>
+                            <!-- When note is open but no backlinks -->
+                            <template x-if="currentNote && backlinks.length === 0">
+                                <div class="text-center py-6 px-3">
+                                    <svg class="w-12 h-12 mx-auto mb-3 opacity-40" style="color: var(--text-tertiary);" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4"></path>
+                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14 4h6m0 0v6m0-6L10 14"></path>
+                                    </svg>
+                                    <p class="text-sm mb-2" style="color: var(--text-tertiary);" x-text="t('backlinks.no_backlinks')"></p>
+                                    <p class="text-xs" style="color: var(--text-tertiary);" x-text="t('backlinks.hint')"></p>
+                                </div>
+                            </template>
+                            <!-- When no note is open -->
+                            <template x-if="!currentNote">
+                                <div class="text-center py-6 px-3">
+                                    <svg class="w-12 h-12 mx-auto mb-3 opacity-40" style="color: var(--text-tertiary);" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"></path>
+                                    </svg>
+                                    <p class="text-sm" style="color: var(--text-tertiary);" x-text="t('backlinks.select_note')"></p>
+                                </div>
+                            </template>
+                        </div>
+                    </div>
+                </div>
+                <!-- END BACKLINKS PANEL -->
+
                 <!-- ==================== SETTINGS PANEL ==================== -->
                 <template x-if="activePanel === 'settings'">
                     <div class="flex flex-col h-full">

locales/de-DE.json

@@ -156,6 +156,14 @@
     "hint": "Überschriften mit # hinzufügen"
   },
 
+  "backlinks": {
+    "title": "Rückverweise",
+    "no_backlinks": "Keine Rückverweise gefunden",
+    "hint": "Andere Notizen erscheinen hier, wenn sie auf diese Notiz mit [[Wikilinks]] verweisen",
+    "select_note": "Wählen Sie eine Notiz um Rückverweise zu sehen",
+    "more_refs": "mehr"
+  },
+
   "stats": {
     "words": "Wörter",
     "reading_time": "~{{minutes}} Min. Lesezeit",

locales/en-GB.json

@@ -155,6 +155,14 @@
     "hint": "Add headings using # syntax"
   },
 
+  "backlinks": {
+    "title": "Backlinks",
+    "no_backlinks": "No backlinks found",
+    "hint": "Other notes will appear here when they link to this note using [[wikilinks]]",
+    "select_note": "Select a note to see backlinks",
+    "more_refs": "more"
+  },
+
   "stats": {
     "words": "words",
     "reading_time": "~{{minutes}}m read",

locales/en-US.json

@@ -156,6 +156,14 @@
     "hint": "Add headings using # syntax"
   },
 
+  "backlinks": {
+    "title": "Backlinks",
+    "no_backlinks": "No backlinks found",
+    "hint": "Other notes will appear here when they link to this note using [[wikilinks]]",
+    "select_note": "Select a note to see backlinks",
+    "more_refs": "more"
+  },
+
   "stats": {
     "words": "words",
     "reading_time": "~{{minutes}}m read",

locales/es-ES.json

@@ -156,6 +156,14 @@
     "hint": "Añade encabezados usando sintaxis #"
   },
 
+  "backlinks": {
+    "title": "Backlinks",
+    "no_backlinks": "No se encontraron backlinks",
+    "hint": "Otras notas aparecerán aquí cuando enlacen a esta nota usando [[wikilinks]]",
+    "select_note": "Selecciona una nota para ver backlinks",
+    "more_refs": "más"
+  },
+
   "stats": {
     "words": "palabras",
     "reading_time": "~{{minutes}}m de lectura",

locales/fr-FR.json

@@ -156,6 +156,14 @@
     "hint": "Ajoutez des titres avec la syntaxe #"
   },
 
+  "backlinks": {
+    "title": "Rétroliens",
+    "no_backlinks": "Aucun rétrolien trouvé",
+    "hint": "D'autres notes apparaîtront ici lorsqu'elles feront référence à cette note avec des [[wikilinks]]",
+    "select_note": "Sélectionnez une note pour voir les rétroliens",
+    "more_refs": "de plus"
+  },
+
   "stats": {
     "words": "mots",
     "reading_time": "~{{minutes}}m de lecture",

locales/hu-HU.json

@@ -156,6 +156,14 @@
     "hint": "Fejléc hozzáadása a következővel: # "
   },
 
+  "backlinks": {
+    "title": "Visszahivatkozások",
+    "no_backlinks": "Nincsenek visszahivatkozások",
+    "hint": "Más jegyzetek itt jelennek meg, ha [[wikilink]]-kel hivatkoznak erre a jegyzetre",
+    "select_note": "Válasszon jegyzetet a visszahivatkozások megtekintéséhez",
+    "more_refs": "további"
+  },
+
   "stats": {
     "words": "szavak",
     "reading_time": "~{{minutes}} percnyi olvasás",

locales/it-IT.json

@@ -155,6 +155,14 @@
     "hint": "Aggiungi titoli usando la sintassi #"
   },
 
+  "backlinks": {
+    "title": "Backlink",
+    "no_backlinks": "Nessun backlink trovato",
+    "hint": "Altre note appariranno qui quando fanno riferimento a questa nota usando [[wikilinks]]",
+    "select_note": "Seleziona una nota per vedere i backlink",
+    "more_refs": "altri"
+  },
+
   "stats": {
     "words": "parole",
     "reading_time": "~{{minutes}}m lettura",

locales/ja-JP.json

@@ -155,6 +155,14 @@
     "hint": "# 記法で見出しを追加"
   },
 
+  "backlinks": {
+    "title": "バックリンク",
+    "no_backlinks": "バックリンクが見つかりません",
+    "hint": "他のノートが [[リンク]] でこのノートにリンクすると、ここに表示されます",
+    "select_note": "バックリンクを表示するノートを選択",
+    "more_refs": "その他"
+  },
+
   "stats": {
     "words": "語",
     "reading_time": "約{{minutes}}分で読了",

locales/ru-RU.json

@@ -155,6 +155,14 @@
     "hint": "Добавьте заголовки с помощью #"
   },
 
+  "backlinks": {
+    "title": "Обратные ссылки",
+    "no_backlinks": "Обратные ссылки не найдены",
+    "hint": "Другие заметки появятся здесь, когда они ссылаются на эту заметку с помощью [[вики-ссылок]]",
+    "select_note": "Выберите заметку, чтобы увидеть обратные ссылки",
+    "more_refs": "ещё"
+  },
+
   "stats": {
     "words": "слов",
     "reading_time": "~{{minutes}} мин. чтения",

locales/sl-SI.json

@@ -155,6 +155,14 @@
     "hint": "Dodajte naslove s sintakso #"
   },
 
+  "backlinks": {
+    "title": "Povratne povezave",
+    "no_backlinks": "Ni najdenih povratnih povezav",
+    "hint": "Druge beležke se bodo pojavile tukaj, ko se bodo nanašale na to beležko z [[wikilinks]]",
+    "select_note": "Izberite beležko za ogled povratnih povezav",
+    "more_refs": "več"
+  },
+
   "stats": {
     "words": "besed",
     "reading_time": "~{{minutes}} min branja",

locales/zh-CN.json

@@ -151,10 +151,18 @@
 
   "outline": {
     "title": "大纲",
-    "no_headings": "未找到标题", 
+    "no_headings": "未找到标题",
     "hint": "使用 # 语法添加标题"
   },
 
+  "backlinks": {
+    "title": "反向链接",
+    "no_backlinks": "未找到反向链接",
+    "hint": "当其他笔记使用 [[链接]] 链接到此笔记时，它们将显示在这里",
+    "select_note": "选择一个笔记以查看反向链接",
+    "more_refs": "更多"
+  },
+
   "stats": {
     "words": "字数",
     "reading_time": "~{{minutes}}分钟阅读",