v3.2.3: 工作空间面板改为常驻显示，固定宽度480px，不可关闭不可拖拽

src/renderer/styles/style.css

@@ -2670,7 +2670,7 @@ html, body {
     top: 90px; /* header(44px) + model-bar(46px) */
     right: 0;
     bottom: 0;
-    width: 420px;
+    width: 480px;
     background: var(--bg-solid, #202020);
     border-left: 1px solid var(--border-default, rgba(255,255,255,0.08));
     border-top: 1px solid var(--border-default, rgba(255,255,255,0.08));
@@ -2680,21 +2680,6 @@ html, body {
     font-family: 'Cascadia Code', 'Consolas', 'Courier New', monospace;
 }
 
-.ws-resizer {
-    position: absolute;
-    left: -3px;
-    top: 0;
-    bottom: 0;
-    width: 6px;
-    cursor: col-resize;
-    z-index: 11;
-}
-
-.ws-resizer:hover {
-    background: var(--accent, #60CDFF);
-    opacity: 0.3;
-}
-
 .ws-header {
     display: flex;
     align-items: center;
@@ -2742,11 +2727,6 @@ html, body {
     border-color: var(--border-strong, rgba(255,255,255,0.12));
 }
 
-.ws-toggle-btn {
-    margin-left: 4px;
-    padding: 4px;
-}
-
 /* ── 终端内容区 ── */
 
 .ws-content {
@@ -3086,13 +3066,8 @@ html, body {
 
 /* ── Header 按钮高亮 ── */
 
-#btnWorkspace.active {
-    color: var(--accent, #60CDFF);
-    background: var(--accent-subtle, rgba(96,205,255,0.06));
-}
-
 /* ── 主内容区自适应 ── */
 
 .main-wrap.with-workspace {
-    margin-right: 420px;
+    margin-right: 480px;
 }