feat: drag/drop files in gui to change directories

13 files changed, 219 insertions, 24 deletions

diff --git a/data/.admin_history.json b/data/.admin_history.json
new file mode 100644
index 0000000..4639022
--- /dev/null
+++ b/data/.admin_history.json
@@ -0,0 +1 @@
+{"history":[{"time":"2026-07-04T23:03:14-04:00","description":"move objects teak_tree to test/","file_path":"data/objects/teak_tree.yaml","new_file_path":"data/objects/test/teak_tree.yaml","old_content":"color: \"B3\"\ngather:\n    deplete_timer: 50\n    drops:\n        - depletes: false\n          item_id: teak_logs\n          level: 35\n          success_message: You get some {B3}teak logs{/}.\n          weight: 100\n          xp: 85\n    fail_message: You swing but get no logs.\n    gather_message: You swing your axe at the teak tree...\n    nest_chance: 256\n    respawn_broadcast: A {name} grows back.\n    respawn_timer: 15\n    skill: woodcutting\n    success:\n        base: 0.32\n        cap: 0.82\n        per_level: 0.01\n    tools:\n        - axe\nname: teak tree\n","new_content":"color: \"B3\"\ngather:\n    deplete_timer: 50\n    drops:\n        - depletes: false\n          item_id: teak_logs\n          level: 35\n          success_message: You get some {B3}teak logs{/}.\n          weight: 100\n          xp: 85\n    fail_message: You swing but get no logs.\n    gather_message: You swing your axe at the teak tree...\n    nest_chance: 256\n    respawn_broadcast: A {name} grows back.\n    respawn_timer: 15\n    skill: woodcutting\n    success:\n        base: 0.32\n        cap: 0.82\n        per_level: 0.01\n    tools:\n        - axe\nname: teak tree\n","is_delete":false,"is_create":false},{"time":"2026-07-04T23:03:19-04:00","description":"move objects teak_tree to root","file_path":"data/objects/test/teak_tree.yaml","new_file_path":"data/objects/teak_tree.yaml","old_content":"color: \"B3\"\ngather:\n    deplete_timer: 50\n    drops:\n        - depletes: false\n          item_id: teak_logs\n          level: 35\n          success_message: You get some {B3}teak logs{/}.\n          weight: 100\n          xp: 85\n    fail_message: You swing but get no logs.\n    gather_message: You swing your axe at the teak tree...\n    nest_chance: 256\n    respawn_broadcast: A {name} grows back.\n    respawn_timer: 15\n    skill: woodcutting\n    success:\n        base: 0.32\n        cap: 0.82\n        per_level: 0.01\n    tools:\n        - axe\nname: teak tree\n","new_content":"color: \"B3\"\ngather:\n    deplete_timer: 50\n    drops:\n        - depletes: false\n          item_id: teak_logs\n          level: 35\n          success_message: You get some {B3}teak logs{/}.\n          weight: 100\n          xp: 85\n    fail_message: You swing but get no logs.\n    gather_message: You swing your axe at the teak tree...\n    nest_chance: 256\n    respawn_broadcast: A {name} grows back.\n    respawn_timer: 15\n    skill: woodcutting\n    success:\n        base: 0.32\n        cap: 0.82\n        per_level: 0.01\n    tools:\n        - axe\nname: teak tree\n","is_delete":false,"is_create":false},{"time":"2026-07-04T23:03:22-04:00","description":"delete directory objects/test","file_path":"data/objects/test","old_content":"","new_content":"","is_delete":true,"is_create":false}],"redo":null}
\ No newline at end of file
diff --git a/internal/admin/server.go b/internal/admin/server.go
index b1f641a..04e68a6 100644
--- a/internal/admin/server.go
+++ b/internal/admin/server.go
@@ -118,24 +118,31 @@ func NewServer(cfg *config.Config, useTLS bool, accountStore *player.AccountStor
 	apiMux.HandleFunc("/api/rooms/new-empty", s.handleCreateEmptyRoom)
 	apiMux.HandleFunc("/api/rooms/", s.handleRoomByID)
 	apiMux.HandleFunc("/api/objects/move", s.handleEntityMove("objects"))
+	apiMux.HandleFunc("/api/objects/dirs", s.handleEntityDirs("objects"))
 	apiMux.HandleFunc("/api/objects", s.handleObjects)
 	apiMux.HandleFunc("/api/objects/", s.handleObjectByID)
 	apiMux.HandleFunc("/api/items/move", s.handleEntityMove("items"))
+	apiMux.HandleFunc("/api/items/dirs", s.handleEntityDirs("items"))
 	apiMux.HandleFunc("/api/items", s.handleItems)
 	apiMux.HandleFunc("/api/items/", s.handleItemByID)
 	apiMux.HandleFunc("/api/mobs/move", s.handleEntityMove("mobs"))
+	apiMux.HandleFunc("/api/mobs/dirs", s.handleEntityDirs("mobs"))
 	apiMux.HandleFunc("/api/mobs", s.handleMobs)
 	apiMux.HandleFunc("/api/mobs/", s.handleMobByID)
 	apiMux.HandleFunc("/api/drops/move", s.handleEntityMove("drops"))
+	apiMux.HandleFunc("/api/drops/dirs", s.handleEntityDirs("drops"))
 	apiMux.HandleFunc("/api/drops", s.handleDrops)
 	apiMux.HandleFunc("/api/drops/", s.handleDropByID)
 	apiMux.HandleFunc("/api/hazards/move", s.handleEntityMove("hazards"))
+	apiMux.HandleFunc("/api/hazards/dirs", s.handleEntityDirs("hazards"))
 	apiMux.HandleFunc("/api/hazards", s.handleHazards)
 	apiMux.HandleFunc("/api/hazards/", s.handleHazardByID)
 	apiMux.HandleFunc("/api/techs/move", s.handleEntityMove("techs"))
+	apiMux.HandleFunc("/api/techs/dirs", s.handleEntityDirs("techs"))
 	apiMux.HandleFunc("/api/techs", s.handleTechs)
 	apiMux.HandleFunc("/api/techs/", s.handleTechByID)
 	apiMux.HandleFunc("/api/modules/move", s.handleEntityMove("modules"))
+	apiMux.HandleFunc("/api/modules/dirs", s.handleEntityDirs("modules"))
 	apiMux.HandleFunc("/api/modules", s.handleModules)
 	apiMux.HandleFunc("/api/modules/", s.handleModuleByID)
 	apiMux.HandleFunc("/api/players", s.handlePlayers)
@@ -466,6 +473,44 @@ func (s *AdminServer) doRedo(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, resp)
 }
 
+func (s *AdminServer) handleEntityDirs(entityType string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+		var body struct {
+			Action string `json:"action"`
+			Name   string `json:"name"`
+			Dir    string `json:"dir"`
+		}
+		if err := readJSON(r, &body); err != nil {
+			writeJSON(w, map[string]any{"error": "invalid"})
+			return
+		}
+		switch body.Action {
+		case "create":
+			if err := createEntityDir(s.dataDir, entityType, body.Name); err != nil {
+				writeJSON(w, map[string]any{"error": err.Error()})
+				return
+			}
+			writeJSON(w, map[string]any{"ok": true, "name": body.Name})
+		case "delete":
+			changes, err := deleteEntityDir(s.dataDir, entityType, body.Dir)
+			if err != nil {
+				writeJSON(w, map[string]any{"error": err.Error()})
+				return
+			}
+			for _, ch := range changes {
+				s.undoStack.Push(ch)
+			}
+			writeJSON(w, map[string]any{"ok": true, "moved": len(changes) - 1})
+		default:
+			writeJSON(w, map[string]any{"error": "unknown action"})
+		}
+	}
+}
+
 func (s *AdminServer) handleEntityMove(entityType string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		if r.Method != http.MethodPost {
diff --git a/internal/admin/static/admin.css b/internal/admin/static/admin.css
index 42e64fa..33dbdc4 100644
--- a/internal/admin/static/admin.css
+++ b/internal/admin/static/admin.css
@@ -2,7 +2,7 @@
 *{box-sizing:border-box;margin:0;padding:0}
 input[type=number]{-moz-appearance:textfield}
 input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
-body{font-family:monospace;background:var(--bg);color:var(--text);min-height:100vh}
+body{font-family:monospace;background:var(--bg);color:var(--text);display:flex;flex-direction:column;height:100vh;overflow:hidden}
 .nav{background:var(--panel);border-bottom:1px solid var(--border);padding:8px 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
 .nav a{color:var(--text);text-decoration:none;padding:4px 10px;border-radius:3px;font-size:13px}
 .nav a:hover,.nav a.active{background:var(--accent)}
@@ -11,7 +11,7 @@ body{font-family:monospace;background:var(--bg);color:var(--text);min-height:100
 .nav .undo-bar button:disabled{opacity:.4;cursor:default}
 .nav .undo-bar button:not(:disabled):hover{background:var(--accent)}
 .nav .undo-bar span{color:#888;flex:1;text-align:right;margin-right:8px}
-.layout{display:flex;height:calc(100vh - 38px)}
+.layout{display:flex;flex:1;min-height:0}
 .main{flex:1;overflow:auto;position:relative;user-select:none;-webkit-user-select:none}
 #mapSvg{display:block}
 .panel{width:300px;background:var(--panel);border-left:1px solid var(--border);overflow-y:auto;padding:16px;flex-shrink:0;position:relative}
@@ -187,7 +187,7 @@ body{font-family:monospace;background:var(--bg);color:var(--text);min-height:100
 .color-picker{display:flex;flex-wrap:wrap;gap:2px;margin-top:4px;max-height:200px;overflow-y:auto}
 .color-picker .swatch{width:18px;height:18px;border:1px solid transparent;cursor:pointer;border-radius:1px}
 .color-picker .swatch:hover,.color-picker .swatch.selected{border-color:#fff;transform:scale(1.2);z-index:1}
-.editor-container{display:flex;height:calc(100vh - 38px)}
+.editor-container{display:flex;flex:1;min-height:0}
 .editor-list{width:260px;background:var(--panel);border-right:1px solid var(--border);overflow-y:auto;padding:10px;flex-shrink:0}
 .editor-main{flex:1;overflow-y:auto;padding:16px}
 .editor-list .item{padding:5px 8px;font-size:12px;cursor:pointer;border-radius:3px;margin-bottom:2px}
@@ -202,6 +202,7 @@ body{font-family:monospace;background:var(--bg);color:var(--text);min-height:100
 .dir-count{font-size:9px;color:#555}
 .dir-items{padding-left:10px}
 .dir-items .item{font-size:11px}
+.dir-drop-target{background:rgba(15,52,96,.3)!important;outline:1px dashed var(--accent);outline-offset:-2px}
 .editor-main pre{background:var(--input-bg);padding:12px;border-radius:4px;font-size:12px;overflow-x:auto;border:1px solid var(--border)}
 .form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:4px 10px}
 .form-grid .form-group{margin-bottom:4px}
@@ -306,7 +307,7 @@ g.ud-hover:hover text{font-weight:bold}
 .obj-sub-remove{align-self:flex-end;padding:2px 6px;font-size:10px;min-width:auto;background:var(--danger);color:#fff;border:none;border-radius:3px;cursor:pointer;margin-bottom:3px}
 .obj-sub-add{display:block;width:100%;margin-top:4px;padding:4px 8px;font-size:11px;background:var(--accent);color:var(--text);border:1px solid #1a5a8e;border-radius:3px;cursor:pointer;font-family:monospace}
 .obj-sub-add:hover{background:var(--hover)}
-.add-section-bar{display:flex;gap:6px;align-items:center;margin-top:12px;padding:8px 0;border-top:1px solid var(--border);max-width:calc(50% - 5px)}
+.add-section-bar{display:flex;gap:6px;align-items:center;margin-top:12px;padding:8px 0;border-top:1px solid var(--border);max-width:100%;flex-wrap:wrap}
 .add-section-bar select{padding:4px 8px;font-size:11px;background:var(--input-bg);color:var(--text);border:1px solid var(--input-border);border-radius:3px;font-family:monospace;flex:1}
 .add-section-bar button{padding:4px 12px;font-size:11px}
 .obj-kv-list{margin-top:4px}
diff --git a/internal/admin/static/dropeditor.js b/internal/admin/static/dropeditor.js
index dddcddb..cbd51c7 100644
--- a/internal/admin/static/dropeditor.js
+++ b/internal/admin/static/dropeditor.js
@@ -66,7 +66,7 @@ function renderDropEditor(id, data) {
     html += renderCard(sec, data);
   });
   html += '</div>';
-  html += renderMoveBar();
+  html += '<div class="add-section-bar">' + renderMoveBar() + '</div>';
   html += '</div>';
 
   html += '<div class="tab-content" id="tabYaml" style="display:none">';
@@ -76,6 +76,7 @@ function renderDropEditor(id, data) {
   html += '<div class="btn-row">';
   html += '<button class="btn btn-primary" onclick="saveDrop()">Save</button>';
   html += '<button class="btn btn-danger" onclick="deleteDrop()">Delete</button>';
+  html += '<button class="btn btn-sm" style="margin-left:auto" onclick="createNewDir()">New Directory</button>';
   html += '</div>';
 
   $('#editorMain').innerHTML = html;
diff --git a/internal/admin/static/editor.js b/internal/admin/static/editor.js
index 35bdbe6..5b2d8ef 100644
--- a/internal/admin/static/editor.js
+++ b/internal/admin/static/editor.js
@@ -52,7 +52,7 @@ function renderList(filter) {
 }
 
 function renderDirGroup(name, ids, filter) {
-  if (ids.length === 0 && !filter) return '';
+  if (ids.length === 0 && !filter && !name) return '';
   var isFiltering = !!filter;
   var displayIds = ids;
   if (isFiltering) {
@@ -63,15 +63,15 @@ function renderDirGroup(name, ids, filter) {
   var displayName = name || editorType.charAt(0).toUpperCase() + editorType.slice(1);
   var h = '<div class="dir-group">';
   if (name) {
-    h += '<div class="dir-header" onclick="toggleDir(\'' + escAttr(name) + '\')">';
+    h += '<div class="dir-header" onclick="toggleDir(\'' + escAttr(name) + '\')" oncontextmenu="showDirContextMenu(event,\'' + escAttr(name) + '\')" ondragover="dirDragOver(event,\'' + escAttr(name) + '\')" ondragleave="dirDragLeave(event)" ondrop="dirDrop(event,\'' + escAttr(name) + '\')">';
     h += '<span class="dir-arrow">' + (expanded ? '&#9660;' : '&#9654;') + '</span>';
     h += '<span class="dir-name">' + esc(displayName) + '</span>';
     h += '<span class="dir-count">' + (isFiltering ? displayIds.length + '/' + ids.length : ids.length) + '</span>';
     h += '</div>';
   }
-  h += '<div class="dir-items"' + (name && !expanded ? ' style="display:none"' : '') + '>';
+  h += '<div class="dir-items"' + (name && !expanded ? ' style="display:none"' : '') + ' ondragover="dirDragOver(event,\'' + (name || '') + '\')" ondragleave="dirDragLeave(event)" ondrop="dirDrop(event,\'' + (name || '') + '\')">';
   displayIds.forEach(function(id) {
-    h += '<div class="item' + (id === currentID ? ' active' : '') + '" onclick="loadItem(\'' + esc(id) + '\')">' + esc(id) + '</div>';
+    h += '<div class="item' + (id === currentID ? ' active' : '') + '" onclick="loadItem(\'' + esc(id) + '\')" draggable="true" ondragstart="itemDragStart(event,\'' + escAttr(id) + '\')">' + esc(id) + '</div>';
   });
   h += '</div>';
   h += '</div>';
@@ -236,8 +236,7 @@ window.refreshPage = function() { loadList(); if (currentID) loadItem(currentID)
 
 function renderMoveBar() {
   var dirs = Object.keys(treeData.dirs).sort();
-  var html = '<div class="add-section-bar">';
-  html += '<select id="moveDirSelect">';
+  var html = '<select id="moveDirSelect">';
   html += '<option value="">Move to directory...</option>';
   html += '<option value="">Root</option>';
   dirs.forEach(function(dir) {
@@ -245,7 +244,6 @@ function renderMoveBar() {
   });
   html += '</select>';
   html += '<button class="btn btn-primary btn-sm" onclick="moveToDirectory()">Move</button>';
-  html += '</div>';
   return html;
 }
 
@@ -254,7 +252,6 @@ function moveToDirectory() {
   var idx = sel.selectedIndex;
   if (idx === 0) return;
   var dir = sel.value;
-  if (!confirm('Move ' + currentID + ' to ' + (dir || 'Root') + '?')) return;
   API.post('/api/' + editorType + '/move', {id: currentID, dir: dir}).then(function() {
     notify('Moved ' + currentID + ' to ' + (dir || 'Root'), 'success');
     updateUndoBar();
@@ -262,3 +259,72 @@ function moveToDirectory() {
     loadItem(currentID);
   }).catch(function(e) { notify('Move failed: ' + e.message, 'error'); });
 }
+
+function createNewDir() {
+  var name = prompt('New directory name:');
+  if (!name) return;
+  API.post('/api/' + editorType + '/dirs', {action: 'create', name: name}).then(function() {
+    notify('Directory ' + name + ' created', 'success');
+    updateUndoBar();
+    loadList();
+  }).catch(function(e) { notify('Failed to create directory: ' + e.message, 'error'); });
+}
+
+function showDirContextMenu(e, dir) {
+  e.preventDefault();
+  if (dir === 'Root') return;
+  var overlay = document.createElement('div');
+  overlay.className = 'cm-overlay';
+  overlay.onclick = function() { overlay.remove(); menu.remove(); };
+
+  var menu = document.createElement('div');
+  menu.className = 'cm-menu';
+  menu.style.left = e.clientX + 'px';
+  menu.style.top = e.clientY + 'px';
+
+  var delBtn = document.createElement('button');
+  delBtn.textContent = 'Delete Directory';
+  delBtn.className = 'danger';
+  delBtn.onclick = function() {
+    overlay.remove(); menu.remove();
+    API.post('/api/' + editorType + '/dirs', {action: 'delete', dir: dir}).then(function(r) {
+      notify('Deleted directory ' + dir + (r.moved ? ' (' + r.moved + ' files moved to root)' : ''), 'success');
+      updateUndoBar();
+      loadList();
+    }).catch(function(e) { notify('Delete failed: ' + e.message, 'error'); });
+  };
+  menu.appendChild(delBtn);
+
+  document.body.appendChild(overlay);
+  document.body.appendChild(menu);
+}
+
+function dirDragOver(e, dir) {
+  e.preventDefault();
+  e.stopPropagation();
+  e.currentTarget.classList.add('dir-drop-target');
+}
+
+function dirDragLeave(e) {
+  e.currentTarget.classList.remove('dir-drop-target');
+}
+
+function dirDrop(e, dir) {
+  e.preventDefault();
+  e.stopPropagation();
+  e.currentTarget.classList.remove('dir-drop-target');
+  if (dir === 'Root') dir = '';
+  var id = e.dataTransfer.getData('text/plain');
+  if (!id) return;
+  API.post('/api/' + editorType + '/move', {id: id, dir: dir}).then(function() {
+    notify('Moved ' + id + ' to ' + (dir || 'Root'), 'success');
+    updateUndoBar();
+    loadList();
+    if (currentID === id) loadItem(id);
+  }).catch(function(e) { notify('Move failed: ' + e.message, 'error'); });
+}
+
+function itemDragStart(e, id) {
+  e.dataTransfer.setData('text/plain', id);
+  e.dataTransfer.effectAllowed = 'move';
+}
diff --git a/internal/admin/static/hazardeditor.js b/internal/admin/static/hazardeditor.js
index ad317cc..ac35e78 100644
--- a/internal/admin/static/hazardeditor.js
+++ b/internal/admin/static/hazardeditor.js
@@ -89,9 +89,9 @@ function renderHazardEditor(id, data) {
   });
   html += '</select>';
   html += '<button class="btn btn-primary btn-sm" onclick="addSection()">Add</button>';
-  html += '</div>';
   html += renderMoveBar();
   html += '</div>';
+  html += '</div>';
 
   html += '<div class="tab-content" id="tabYaml" style="display:none">';
   html += '<pre>' + esc(data._raw || JSON.stringify(data, null, 2)) + '</pre>';
@@ -100,6 +100,7 @@ function renderHazardEditor(id, data) {
   html += '<div class="btn-row">';
   html += '<button class="btn btn-primary" onclick="saveHazard()">Save</button>';
   html += '<button class="btn btn-danger" onclick="deleteHazard()">Delete</button>';
+  html += '<button class="btn btn-sm" style="margin-left:auto" onclick="createNewDir()">New Directory</button>';
   html += '</div>';
 
   $('#editorMain').innerHTML = html;
diff --git a/internal/admin/static/itemeditor.js b/internal/admin/static/itemeditor.js
index ce28581..84090a1 100644
--- a/internal/admin/static/itemeditor.js
+++ b/internal/admin/static/itemeditor.js
@@ -199,9 +199,9 @@ function renderItemEditor(id, data) {
   });
   html += '</select>';
   html += '<button class="btn btn-primary btn-sm" onclick="addSection()">Add</button>';
-  html += '</div>';
   html += renderMoveBar();
   html += '</div>';
+  html += '</div>';
 
   html += '<div class="tab-content" id="tabYaml" style="display:none">';
   html += '<pre>' + esc(data._raw || JSON.stringify(data, null, 2)) + '</pre>';
@@ -211,6 +211,7 @@ function renderItemEditor(id, data) {
   html += '<button class="btn btn-primary" onclick="saveItem()">Save</button>';
   html += '<button class="btn" onclick="duplicateItem()">Duplicate</button>';
   html += '<button class="btn btn-danger" onclick="deleteItem()">Delete Item</button>';
+  html += '<button class="btn btn-sm" style="margin-left:auto" onclick="createNewDir()">New Directory</button>';
   html += '</div>';
 
   $('#editorMain').innerHTML = html;
diff --git a/internal/admin/static/mobeditor.js b/internal/admin/static/mobeditor.js
index 802b48a..1758673 100644
--- a/internal/admin/static/mobeditor.js
+++ b/internal/admin/static/mobeditor.js
@@ -173,9 +173,9 @@ function renderMobEditor(id, data) {
   });
   html += '</select>';
   html += '<button class="btn btn-primary btn-sm" onclick="mobAddSection()">Add</button>';
+  html += renderMoveBar();
   html += '</div>';
 
-  html += renderMoveBar();
   html += '</div>';
 
   html += '<div class="tab-content" id="tabYaml" style="display:none">';
@@ -186,6 +186,7 @@ function renderMobEditor(id, data) {
   html += '<button class="btn btn-primary" onclick="saveMob()">Save</button>';
   html += '<button class="btn" onclick="duplicateMob()">Duplicate</button>';
   html += '<button class="btn btn-danger" onclick="deleteMob()">Delete Mob</button>';
+  html += '<button class="btn btn-sm" style="margin-left:auto" onclick="createNewDir()">New Directory</button>';
   html += '</div>';
 
   $('#editorMain').innerHTML = html;
diff --git a/internal/admin/static/moduleeditor.js b/internal/admin/static/moduleeditor.js
index 1e7de30..6d6a3e0 100644
--- a/internal/admin/static/moduleeditor.js
+++ b/internal/admin/static/moduleeditor.js
@@ -90,9 +90,9 @@ function renderModuleEditor(id, data) {
   });
   html += '</select>';
   html += '<button class="btn btn-primary btn-sm" onclick="addSection()">Add</button>';
-  html += '</div>';
   html += renderMoveBar();
   html += '</div>';
+  html += '</div>';
 
   html += '<div class="tab-content" id="tabYaml" style="display:none">';
   html += '<pre>' + esc(data._raw || JSON.stringify(data, null, 2)) + '</pre>';
@@ -101,6 +101,7 @@ function renderModuleEditor(id, data) {
   html += '<div class="btn-row">';
   html += '<button class="btn btn-primary" onclick="saveModule()">Save</button>';
   html += '<button class="btn btn-danger" onclick="deleteModule()">Delete</button>';
+  html += '<button class="btn btn-sm" style="margin-left:auto" onclick="createNewDir()">New Directory</button>';
   html += '</div>';
 
   $('#editorMain').innerHTML = html;
diff --git a/internal/admin/static/objecteditor.js b/internal/admin/static/objecteditor.js
index c51628f..3f2a875 100644
--- a/internal/admin/static/objecteditor.js
+++ b/internal/admin/static/objecteditor.js
@@ -175,9 +175,9 @@ function renderObjectEditor(id, data) {
   });
   html += '</select>';
   html += '<button class="btn btn-primary btn-sm" onclick="addSection()">Add</button>';
+  html += renderMoveBar();
   html += '</div>';
 
-  html += renderMoveBar();
   html += '</div>';
 
   html += '<div class="tab-content" id="tabYaml" style="display:none">';
@@ -188,6 +188,7 @@ function renderObjectEditor(id, data) {
   html += '<button class="btn btn-primary" onclick="saveObject()">Save</button>';
   html += '<button class="btn" onclick="duplicateObject()">Duplicate</button>';
   html += '<button class="btn btn-danger" onclick="deleteObject()">Delete Object</button>';
+  html += '<button class="btn btn-sm" style="margin-left:auto" onclick="createNewDir()">New Directory</button>';
   html += '</div>';
 
   $('#editorMain').innerHTML = html;
diff --git a/internal/admin/static/techeditor.js b/internal/admin/static/techeditor.js
index 4849fb1..cd4f50f 100644
--- a/internal/admin/static/techeditor.js
+++ b/internal/admin/static/techeditor.js
@@ -80,7 +80,7 @@ function renderTechEditor(id, data) {
     html += renderCard(sec, data);
   });
   html += '</div>';
-  html += renderMoveBar();
+  html += '<div class="add-section-bar">' + renderMoveBar() + '</div>';
   html += '</div>';
 
   html += '<div class="tab-content" id="tabYaml" style="display:none">';
@@ -90,6 +90,7 @@ function renderTechEditor(id, data) {
   html += '<div class="btn-row">';
   html += '<button class="btn btn-primary" onclick="saveTech()">Save</button>';
   html += '<button class="btn btn-danger" onclick="deleteTech()">Delete</button>';
+  html += '<button class="btn btn-sm" style="margin-left:auto" onclick="createNewDir()">New Directory</button>';
   html += '</div>';
 
   $('#editorMain').innerHTML = html;
diff --git a/internal/admin/undo.go b/internal/admin/undo.go
index f69fd9f..0c5ebaa 100644
--- a/internal/admin/undo.go
+++ b/internal/admin/undo.go
@@ -35,7 +35,7 @@ func (c ChangeDesc) ShortDesc() string {
 	case c.IsDelete:
 		return fmt.Sprintf("Deleted %s", filepath.Base(c.FilePath))
 	case c.NewFilePath != "":
-		return fmt.Sprintf("Renamed %s", filepath.Base(c.NewFilePath))
+		return fmt.Sprintf("Moved %s", filepath.Base(c.NewFilePath))
 	default:
 		return fmt.Sprintf("Edited %s", filepath.Base(c.FilePath))
 	}
@@ -129,17 +129,21 @@ func (us *UndoStack) applyUndo(c ChangeDesc) error {
 	}
 	if c.IsDelete {
 		if c.OldContent == nil {
-			return fmt.Errorf("no backup content to restore for %s", c.FilePath)
-		}
-		if err := os.WriteFile(c.FilePath, c.OldContent, 0644); err != nil {
-			return fmt.Errorf("restore deleted %s: %w", c.FilePath, err)
+			os.MkdirAll(c.FilePath, 0755)
+		} else {
+			os.MkdirAll(filepath.Dir(c.FilePath), 0755)
+			if err := os.WriteFile(c.FilePath, c.OldContent, 0644); err != nil {
+				return fmt.Errorf("restore deleted %s: %w", c.FilePath, err)
+			}
 		}
 		for _, ef := range c.ExtraFiles {
+			os.MkdirAll(filepath.Dir(ef.FilePath), 0755)
 			os.WriteFile(ef.FilePath, ef.OldContent, 0644)
 		}
 	} else if c.IsCreate {
 		os.Remove(c.FilePath)
 		for _, ef := range c.ExtraFiles {
+			os.MkdirAll(filepath.Dir(ef.FilePath), 0755)
 			os.WriteFile(ef.FilePath, ef.OldContent, 0644)
 		}
 	} else {
@@ -148,10 +152,12 @@ func (us *UndoStack) applyUndo(c ChangeDesc) error {
 		if c.NewFilePath != "" {
 			target = c.FilePath
 		}
+		os.MkdirAll(filepath.Dir(target), 0755)
 		if err := os.WriteFile(target, content, 0644); err != nil {
 			return fmt.Errorf("revert %s: %w", target, err)
 		}
 		for _, ef := range c.ExtraFiles {
+			os.MkdirAll(filepath.Dir(ef.FilePath), 0755)
 			os.WriteFile(ef.FilePath, ef.OldContent, 0644)
 		}
 	}
@@ -167,15 +173,18 @@ func (us *UndoStack) applyRedo(c ChangeDesc) error {
 		if c.NewFilePath != "" {
 			target = c.NewFilePath
 		}
+		os.MkdirAll(filepath.Dir(target), 0755)
 		if err := os.WriteFile(target, c.NewContent, 0644); err != nil {
 			return fmt.Errorf("recreate %s: %w", target, err)
 		}
 		for _, ef := range c.ExtraFiles {
+			os.MkdirAll(filepath.Dir(ef.FilePath), 0755)
 			os.WriteFile(ef.FilePath, ef.NewContent, 0644)
 		}
 	} else if c.IsDelete {
 		os.Remove(c.FilePath)
 		for _, ef := range c.ExtraFiles {
+			os.MkdirAll(filepath.Dir(ef.FilePath), 0755)
 			os.WriteFile(ef.FilePath, ef.NewContent, 0644)
 		}
 	} else {
@@ -184,10 +193,12 @@ func (us *UndoStack) applyRedo(c ChangeDesc) error {
 		if c.NewFilePath != "" {
 			target = c.NewFilePath
 		}
+		os.MkdirAll(filepath.Dir(target), 0755)
 		if err := os.WriteFile(target, content, 0644); err != nil {
 			return fmt.Errorf("reapply %s: %w", target, err)
 		}
 		for _, ef := range c.ExtraFiles {
+			os.MkdirAll(filepath.Dir(ef.FilePath), 0755)
 			os.WriteFile(ef.FilePath, ef.NewContent, 0644)
 		}
 	}
diff --git a/internal/admin/yaml_util.go b/internal/admin/yaml_util.go
index 465be38..519a04c 100644
--- a/internal/admin/yaml_util.go
+++ b/internal/admin/yaml_util.go
@@ -6,6 +6,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"gopkg.in/yaml.v3"
 )
@@ -120,6 +121,8 @@ func listYAMLTree(dataDir, subdir string) (*YAMLTree, error) {
 			}
 			if len(ids) > 0 {
 				tree.Dirs[e.Name()] = ids
+			} else {
+				tree.Dirs[e.Name()] = []string{}
 			}
 		}
 	}
@@ -198,3 +201,64 @@ func moveEntityFile(dataDir, subdir, id, targetDir string) (string, string, []by
 	}
 	return oldPath, newPath, data, nil
 }
+
+func createEntityDir(dataDir, subdir, name string) error {
+	name = strings.TrimSpace(name)
+	if name == "" || strings.ContainsAny(name, "/\\") || name == "." || name == ".." {
+		return fmt.Errorf("invalid directory name")
+	}
+	dirPath := filepath.Join(dataDir, subdir, name)
+	if _, err := os.Stat(dirPath); err == nil {
+		return fmt.Errorf("directory already exists")
+	}
+	return os.Mkdir(dirPath, 0755)
+}
+
+func deleteEntityDir(dataDir, subdir, dir string) ([]ChangeDesc, error) {
+	dir = strings.TrimSpace(dir)
+	if dir == "" || strings.ContainsAny(dir, "/\\") || dir == "." || dir == ".." {
+		return nil, fmt.Errorf("invalid directory")
+	}
+	srcDir := filepath.Join(dataDir, subdir, dir)
+	entries, err := os.ReadDir(srcDir)
+	if err != nil {
+		return nil, fmt.Errorf("directory not found: %s", dir)
+	}
+
+	var changes []ChangeDesc
+	for _, e := range entries {
+		if e.IsDir() || filepath.Ext(e.Name()) != ".yaml" {
+			continue
+		}
+		oldPath := filepath.Join(srcDir, e.Name())
+		newPath := filepath.Join(dataDir, subdir, e.Name())
+		data, err := os.ReadFile(oldPath)
+		if err != nil {
+			return nil, fmt.Errorf("read %s: %w", e.Name(), err)
+		}
+		if err := os.WriteFile(newPath, data, 0644); err != nil {
+			return nil, fmt.Errorf("write %s: %w", e.Name(), err)
+		}
+		if err := os.Remove(oldPath); err != nil {
+			return nil, fmt.Errorf("remove %s: %w", e.Name(), err)
+		}
+		changes = append(changes, ChangeDesc{
+			Description: fmt.Sprintf("move %s %s to root", subdir, e.Name()),
+			FilePath:    oldPath,
+			NewFilePath: newPath,
+			OldContent:  data,
+			NewContent:  data,
+		})
+	}
+
+	if err := os.Remove(srcDir); err != nil {
+		return nil, fmt.Errorf("remove directory: %w", err)
+	}
+	changes = append(changes, ChangeDesc{
+		Description: fmt.Sprintf("delete directory %s/%s", subdir, dir),
+		FilePath:    srcDir,
+		IsDelete:    true,
+	})
+
+	return changes, nil
+}