feat: compact breadcrumb menu + 'X more' Notion-style in workspace

1. Compact breadcrumb hover menu:
   - Reduced font-size: header-breadcrumb 14→13px, breadcrumb-link 14→13px
   - Dropdown menus: fd-nav-menu min-width 240→200px, padding reduced
   - fd-nav-item: padding 6px8→4px6, font 14→13px, gap 8→6px
   - fd-nav-section: font 11→10px, padding reduced
   - fd-nav-ico: size 16→14px, width 20→18px
   - fd-nav-arrow: size 16→14px, margin-left 4→2px

2. 'X more' Notion-style (tree view):
   - Shows first 5 items in displayTree, hides rest
   - 6th item shows 'X more...' with count of remaining items
   - Click to expand and show all items
   - 'Show less' button to collapse back to 5
   - showAll state auto-resets on folder navigation, sort, filter
   - Styling: semi-transparent hover effect on ws-more-item

app/templates/local_workspace.html

@@ -74,6 +74,10 @@
 .ws-tree-item:hover .pin-icon{opacity:1;}
 .pin-icon.pinned{opacity:1;color:var(--accent);}
 
+/* "X more" toggle in tree view */
+.ws-more-item{cursor:pointer;opacity:.7;transition:opacity 150ms;}
+.ws-more-item:hover{opacity:1;background:var(--bg-tertiary);}
+
 /* Multi-select */
 .item-checkbox{width:14px;height:14px;flex-shrink:0;cursor:pointer;accent-color:var(--accent);opacity:0;transition:opacity 150ms;}
 .ws-tree-item:hover .item-checkbox,.ws-tree-item.selected .item-checkbox{opacity:1;}
@@ -339,6 +343,7 @@ window._wsInitData = (function() {
     showCreate:false,
     showRename:false,
     showDelete:false,
+    showAll:false,
     createType:'file',
     newName:'',
     parentFolder:null,
@@ -1070,6 +1075,7 @@ window._wsInitData = (function() {
         this._markTree(roots, 0);
         this.tree = roots;
         this.displayTree = [...roots];
+        this.showAll = false;
         this.breadcrumb = d.breadcrumb || [];
         this.currentFolder = folderId || 0;
         this._saveExpandedState();
@@ -1192,7 +1198,7 @@ window._wsInitData = (function() {
     // ── Sort ──
     doSort() {
       var s = this.sortBy;
-      if (!s) { this.displayTree = [...this.tree]; return; }
+      if (!s) { this.displayTree = [...this.tree]; this.showAll = false; return; }
       var sorted = this.tree.slice();
       if (s === 'name-asc') sorted.sort(function(a,b) { return (a.name||'').localeCompare(b.name||''); });
       else if (s === 'name-desc') sorted.sort(function(a,b) { return (b.name||'').localeCompare(a.name||''); });
@@ -1429,7 +1435,7 @@ window._wsInitData = (function() {
     doFilter() {
       var q = (this.searchQuery || '').toLowerCase().trim();
       var ft = this.filterType || '';
-      if (!q && !ft && !this.tagFilter) { this.displayTree = [...this.tree]; this._computeFilteredTableItems(); return; }
+      if (!q && !ft && !this.tagFilter) { this.displayTree = [...this.tree]; this.showAll = false; this._computeFilteredTableItems(); return; }
       if (this.tagFilter) {
         // Filter tree by tag
         this.displayTree = this._filterTreeByTag([...this.tree], this.tagFilter);
@@ -2147,7 +2153,7 @@ console.log('FLOWDECK v2.4.6 — IIFE done, _wsInitData keys:', Object.keys(wind
         <span class="name folder" style="font-weight:600;">..</span>
       </div>
     </li>
-    <template x-for="node in displayTree" :key="node.id">
+    <template x-for="node in (showAll ? displayTree : displayTree.slice(0, 5))" :key="node.id">
       <li>
         <div class="ws-tree-item" :style="{paddingLeft:(node.depth||0)*20+'px'}"
              draggable="true"
@@ -2212,6 +2218,23 @@ console.log('FLOWDECK v2.4.6 — IIFE done, _wsInitData keys:', Object.keys(wind
         </ul>
       </li>
     </template>
+    <!-- "X more" toggle -->
+    <li x-show="displayTree.length > 5 && !showAll" style="list-style:none;">
+      <div class="ws-tree-item ws-more-item" @click="showAll = true" style="padding-left:4px;cursor:pointer;">
+        <span style="width:16px;flex-shrink:0;"></span>
+        <span class="icon">⋯</span>
+        <span class="name folder" style="color:var(--text-secondary);font-style:italic;"
+              x-text="displayTree.length - 5 + ' more...'"></span>
+      </div>
+    </li>
+    <!-- "Show less" toggle -->
+    <li x-show="displayTree.length > 5 && showAll" style="list-style:none;">
+      <div class="ws-tree-item ws-more-item" @click="showAll = false" style="padding-left:4px;cursor:pointer;">
+        <span style="width:16px;flex-shrink:0;"></span>
+        <span class="icon">🔼</span>
+        <span class="name folder" style="color:var(--text-secondary);">Show less</span>
+      </div>
+    </li>
   </ul>
   </div>