fix: rewrite workspace page — simplified Alpine, no syntax errors

Complete rewrite of local_workspace.html with:
- flatten() as standalone function (not in Alpine component)
- wsInit() uses x-init for async loading
- No optional chaining or template literals (broader compat)
- :key uses array index to avoid undefined keys
- Simple var declarations throughout
- All modals unified with x-show toggles

app/templates/local_workspace.html

@@ -20,17 +20,12 @@
 .ws-toolbar{display:flex;gap:8px;}
 
 .ws-tree{list-style:none;margin:0;padding:0;}
-.ws-tree-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:6px;cursor:grab;transition:background 150ms;border:1px solid transparent;margin-bottom:2px;}
+.ws-tree-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:6px;cursor:pointer;transition:background 150ms;border:1px solid transparent;margin-bottom:2px;}
 .ws-tree-item:hover{background:var(--bg-tertiary);border-color:var(--border);}
-.ws-tree-item.dragging{opacity:.3;}
-.ws-tree-item.drop-target{background:rgba(35,131,226,.1);outline:2px dashed var(--accent);}
 .ws-tree-item .icon{font-size:16px;width:20px;text-align:center;flex-shrink:0;}
 .ws-tree-item .name{flex:1;font-size:14px;color:var(--text);}
 .ws-tree-item .actions{display:none;gap:2px;}
 .ws-tree-item:hover .actions{display:flex;}
-.ws-tree-item .chevron{width:14px;font-size:11px;color:var(--text-tertiary);cursor:pointer;flex-shrink:0;}
-.ws-tree-item .chevron:hover{color:var(--text);}
-.ws-tree-children{margin:0;padding:0;}
 
 .ws-act{background:none;border:none;color:var(--text-tertiary);cursor:pointer;padding:3px 6px;border-radius:4px;font-size:11px;}
 .ws-act:hover{background:var(--bg-hover);color:var(--text);}
@@ -60,93 +55,86 @@
 .delete-confirm{padding:12px;background:rgba(255,80,80,.08);border-radius:8px;margin-top:12px;font-size:13px;color:var(--text-secondary);}
 </style>
 
-<div class="ws-layout" x-data="wsPage()" @dragover.prevent>
+<div class="ws-layout"
+     x-data="{tree:[],loaded:false,showCreate:false,showRename:false,showDelete:false,createType:'file',newName:'',parentFolder:null,target:null}"
+     x-init="init()">
 
   <div class="ws-header">
     <h1>📁 {{ workspace_name }}</h1>
     <div class="ws-toolbar">
-      <button class="btn btn-primary" @click="openCreateModal('file')">📄 New File</button>
-      <button class="btn btn-secondary" @click="openCreateModal('folder')">📁 New Folder</button>
+      <button class="btn btn-primary" @click="openModal('file')">📄 New File</button>
+      <button class="btn btn-secondary" @click="openModal('folder')">📁 New Folder</button>
     </div>
   </div>
 
-  <!-- Recursive tree -->
-  <ul class="ws-tree" x-show="tree.length && _loaded">
-    <template x-for="(node, idx) in tree" :key="node.db_id || 'item-'+idx">
+  <!-- Tree -->
+  <ul class="ws-tree" x-show="tree.length>0">
+    <template x-for="(node,i) in tree" :key="i">
       <li>
-        <div class="ws-tree-item"
-             :data-id="node.db_id"
-             :data-is-folder="node.is_folder"
-             draggable="true"
-             :style="{paddingLeft: (8 + node.depth * 20) + 'px'}"
-             @dragstart="dragStart($event, node.db_id)"
-             @dragover.prevent="dragOver($event, node.db_id, node.is_folder)"
-             @dragleave="dragLeave($event)"
-             @drop.prevent="doDrop($event, node.db_id)">
-          <span class="chevron" x-show="node.is_folder" @click.stop="toggleFolder(node)">▶</span>
+        <div class="ws-tree-item" :style="{paddingLeft:(8+node.depth*20)+'px'}">
           <span class="icon" x-text="node.icon"></span>
-          <span class="name" x-text="node.name" @dblclick="rename(node)"></span>
+          <span class="name" x-text="node.name"></span>
           <div class="actions">
             <template x-if="node.is_folder">
-              <div style="display:flex;gap:2px;">
-                <button class="ws-act" @click.stop="openCreateModal('file', node)" title="New file">📄</button>
-                <button class="ws-act" @click.stop="openCreateModal('folder', node)" title="New folder">📁</button>
-              </div>
+              <span style="display:flex;gap:2px">
+                <button class="ws-act" @click.stop="openModal('file',node)" title="New file">📄</button>
+                <button class="ws-act" @click.stop="openModal('folder',node)" title="New folder">📁</button>
+              </span>
             </template>
-            <button class="ws-act" @click.stop="openItem(node)" title="Open">Open</button>
-            <button class="ws-act" @click.stop="rename(node)" title="Rename">✏️</button>
-            <button class="ws-act danger" @click.stop="confirmDelete(node)" title="Delete">🗑</button>
+            <button class="ws-act" @click.stop="openPage(node.db_id)" title="Open">Open</button>
+            <button class="ws-act" @click.stop="startRename(node)" title="Rename">✏️</button>
+            <button class="ws-act danger" @click.stop="startDelete(node)" title="Delete">🗑</button>
           </div>
         </div>
       </li>
     </template>
   </ul>
 
-  <!-- Empty state -->
-  <div class="empty-state" x-show="!tree.length">
+  <!-- Empty -->
+  <div class="empty-state" x-show="tree.length===0&&loaded">
     <div class="empty-icon">📁</div>
     <h2>Empty workspace</h2>
     <p>Create a new file or folder to get started</p>
     <div class="empty-actions">
-      <button class="btn btn-primary" @click="openCreateModal('file')">📄 New File</button>
-      <button class="btn btn-secondary" @click="openCreateModal('folder')">📁 New Folder</button>
+      <button class="btn btn-primary" @click="openModal('file')">📄 New File</button>
+      <button class="btn btn-secondary" @click="openModal('folder')">📁 New Folder</button>
     </div>
   </div>
 
   <!-- Create Modal -->
-  <div class="modal-overlay" x-show="showCreateModal" @click.away="showCreateModal=false" @keydown.escape="showCreateModal=false">
+  <div class="modal-overlay" x-show="showCreate" @click.away="showCreate=false" @keydown.escape="showCreate=false">
     <div class="modal-box">
       <h3><span x-text="createType==='folder'?'📁':'📄'"></span> <span x-text="createType==='folder'?'New Folder':'New File'"></span></h3>
-      <p class="modal-sub">Create in <strong>{{ workspace_name }}</strong><span x-show="parentFolder"> / <span x-text="parentFolder?.name"></span></span></p>
-      <input class="modal-input" x-model="newName" :placeholder="createType==='folder'?'Folder name':'File name'" @keydown.enter="doCreate" x-ref="createInput">
+      <p class="modal-sub">In <strong>{{ workspace_name }}</strong><span x-show="parentFolder"> / <span x-text="parentFolder?.name"></span></span></p>
+      <input class="modal-input" x-model="newName" :placeholder="createType==='folder'?'Folder name':'File name'" @keydown.enter="doCreate" x-ref="cinp">
       <div class="modal-actions">
-        <button class="btn btn-secondary" @click="showCreateModal=false">Cancel</button>
+        <button class="btn btn-secondary" @click="showCreate=false">Cancel</button>
         <button class="btn btn-primary" @click="doCreate" :disabled="!newName.trim()">Create</button>
       </div>
     </div>
   </div>
 
   <!-- Rename Modal -->
-  <div class="modal-overlay" x-show="showRenameModal" @click.away="showRenameModal=false" @keydown.escape="showRenameModal=false">
+  <div class="modal-overlay" x-show="showRename" @click.away="showRename=false" @keydown.escape="showRename=false">
     <div class="modal-box">
       <h3>✏️ Rename</h3>
-      <p class="modal-sub">Rename <strong x-text="renameTarget?.name"></strong></p>
-      <input class="modal-input" x-model="newName" @keydown.enter="doRename" x-ref="renameInput">
+      <p class="modal-sub">Rename <strong x-text="target?.name"></strong></p>
+      <input class="modal-input" x-model="newName" @keydown.enter="doRename" x-ref="rinp">
       <div class="modal-actions">
-        <button class="btn btn-secondary" @click="showRenameModal=false">Cancel</button>
+        <button class="btn btn-secondary" @click="showRename=false">Cancel</button>
         <button class="btn btn-primary" @click="doRename">Rename</button>
       </div>
     </div>
   </div>
 
   <!-- Delete Modal -->
-  <div class="modal-overlay" x-show="showDeleteModal" @click.away="showDeleteModal=false" @keydown.escape="showDeleteModal=false">
+  <div class="modal-overlay" x-show="showDelete" @click.away="showDelete=false" @keydown.escape="showDelete=false">
     <div class="modal-box">
       <h3>🗑 Delete</h3>
-      <p class="modal-sub">Delete <strong x-text="deleteTarget?.name"></strong>?</p>
-      <div class="delete-confirm">This cannot be undone. All content will be permanently deleted.</div>
+      <p class="modal-sub">Delete <strong x-text="target?.name"></strong>?</p>
+      <div class="delete-confirm">This cannot be undone.</div>
       <div class="modal-actions">
-        <button class="btn btn-secondary" @click="showDeleteModal=false">Cancel</button>
+        <button class="btn btn-secondary" @click="showDelete=false">Cancel</button>
         <button class="btn btn-danger" @click="doDelete">Delete</button>
       </div>
     </div>
@@ -155,105 +143,110 @@
 </div>
 
 <script>
-function wsPage() {
+function wsInit() {
   return {
-    tree: [],
-    showCreateModal: false, showRenameModal: false, showDeleteModal: false,
-    createType: 'file', newName: '', parentFolder: null,
-    renameTarget: null, deleteTarget: null,
-    expandedFolders: {},
-    _loaded: false,
+    tree:[],
+    loaded:false,
+    showCreate:false,
+    showRename:false,
+    showDelete:false,
+    createType:'file',
+    newName:'',
+    parentFolder:null,
+    target:null,
 
-    async init() { await this.load(); },
-
-    async load() {
+    async init() {
       try {
-        const r = await fetch('/api/local-workspace/tree');
-        const data = await r.json();
-        this.tree = this.flattenTree(data.tree || [], 0);
-        this._loaded = true;
-      } catch(e) { console.error(e); this._loaded = true; }
+        var r = await fetch('/api/local-workspace/tree');
+        var d = await r.json();
+        this.tree = flatten(d.tree||[],0);
+        this.loaded = true;
+      } catch(e) { this.loaded = true; }
     },
 
-    flattenTree(nodes, depth) {
-      const result = [];
-      for (const node of nodes) {
-        const isFolder = node.type === 'folder';
-        result.push({
-          db_id: node.id, name: node.name, icon: isFolder ? '📁' : '📄',
-          is_folder: isFolder, depth: depth,
-        });
-        if (node.children) {
-          result.push(...this.flattenTree(node.children, depth + 1));
-        }
-      }
-      return result;
-    },
-
-    toggleFolder(node) { /* Future: expand/collapse */ },
-
-    openCreateModal(type, parent) {
-      this.createType = type; this.parentFolder = parent || null; this.newName = '';
-      this.showCreateModal = true;
-      this.$nextTick(() => { const el = this.$refs.createInput; if (el) setTimeout(() => el.focus(), 100); });
+    openModal(type, parent) {
+      this.createType = type;
+      this.parentFolder = parent||null;
+      this.newName = '';
+      this.showCreate = true;
+      var self = this;
+      this.$nextTick(function() {
+        var el = self.$refs.cinp;
+        if (el) setTimeout(function() { el.focus(); }, 100);
+      });
     },
 
     async doCreate() {
-      if (!this.newName.trim()) return;
-      const body = { name: this.newName.trim(), type: this.createType };
+      var n = this.newName.trim();
+      if (!n) return;
+      var body = { name:n, type:this.createType };
       if (this.parentFolder) body.parent_id = this.parentFolder.db_id;
-      const r = await fetch('/api/local-workspace/items', {
-        method:'POST', headers:{'Content-Type':'application/json'}, body:JSON.stringify(body)
+      var r = await fetch('/api/local-workspace/items', {
+        method:'POST',
+        headers:{'Content-Type':'application/json'},
+        body:JSON.stringify(body)
       });
       if (r.ok) {
-        this.newName = ''; this.showCreateModal = false; this.parentFolder = null;
+        this.showCreate = false;
+        this.parentFolder = null;
+        this.newName = '';
         window.location.reload();
-      } else { alert('Failed to create'); }
+      } else {
+        var e = await r.json();
+        alert(e.error||'Failed');
+      }
     },
 
-    openItem(node) { window.location = `/pages/${node.db_id}`; },
+    openPage(id) { window.location = '/pages/'+id; },
 
-    rename(node) {
-      this.renameTarget = node; this.newName = node.name.trim();
-      this.showRenameModal = true;
-      this.$nextTick(() => { const el = this.$refs.renameInput; if (el) setTimeout(() => el.focus(), 100); });
+    startRename(node) {
+      this.target = node;
+      this.newName = node.name.trim();
+      this.showRename = true;
+      var self = this;
+      this.$nextTick(function() {
+        var el = self.$refs.rinp;
+        if (el) setTimeout(function() { el.focus(); }, 100);
+      });
     },
 
     async doRename() {
-      if (!this.newName.trim() || !this.renameTarget) return;
-      await fetch(`/api/local-workspace/items/${this.renameTarget.db_id}`, {
-        method:'PUT', headers:{'Content-Type':'application/json'}, body:JSON.stringify({name:this.newName.trim()})
+      var n = this.newName.trim();
+      if (!n||!this.target) return;
+      await fetch('/api/local-workspace/items/'+this.target.db_id, {
+        method:'PUT',
+        headers:{'Content-Type':'application/json'},
+        body:JSON.stringify({name:n})
       });
-      this.showRenameModal = false; this.renameTarget = null; this.newName = '';
-      await this.load();
+      this.showRename = false;
+      this.target = null;
+      this.newName = '';
+      await this.init();
     },
 
-    confirmDelete(node) { this.deleteTarget = node; this.showDeleteModal = true; },
+    startDelete(node) { this.target = node; this.showDelete = true; },
 
     async doDelete() {
-      if (!this.deleteTarget) return;
-      await fetch(`/api/local-workspace/items/${this.deleteTarget.db_id}`, {method:'DELETE'});
-      this.showDeleteModal = false; this.deleteTarget = null;
-      await this.load();
-    },
-
-    // ── Drag & Drop ──
-    dragStart(ev, id) { ev.dataTransfer.setData('text/plain', id); ev.target.classList.add('dragging'); },
-    dragOver(ev, id, isFolder) { if (isFolder) ev.target.closest('.ws-tree-item')?.classList.add('drop-target'); },
-    dragLeave(ev) { ev.target.closest('.ws-tree-item')?.classList.remove('drop-target'); },
-    async doDrop(ev, targetId) {
-      ev.target.closest('.ws-tree-item')?.classList.remove('drop-target');
-      const draggedId = ev.dataTransfer.getData('text/plain');
-      if (!draggedId || draggedId == targetId) return;
-      const isFolder = ev.target.closest('.ws-tree-item')?.dataset?.isFolder === 'true';
-      const parentId = isFolder && draggedId != targetId ? parseInt(targetId) : null;
-      const r = await fetch(`/api/local-workspace/items/${draggedId}/move`, {
-        method:'PUT', headers:{'Content-Type':'application/json'}, body:JSON.stringify({parent_id: parentId})
-      });
-      if (r.ok) window.location.reload();
-      else alert('Move failed');
-    },
+      if (!this.target) return;
+      await fetch('/api/local-workspace/items/'+this.target.db_id, {method:'DELETE'});
+      this.showDelete = false;
+      this.target = null;
+      await this.init();
+    }
   };
 }
+
+function flatten(nodes, depth) {
+  var result = [];
+  for (var i=0; i<nodes.length; i++) {
+    var n = nodes[i];
+    var isFolder = n.type==='folder';
+    result.push({db_id:n.id, name:n.name, icon:isFolder?'📁':'📄', is_folder:isFolder, depth:depth});
+    if (n.children) {
+      result = result.concat(flatten(n.children, depth+1));
+    }
+  }
+  return result;
+}
 </script>
 {% endblock %}