模特库标签分页与全能创作收口：藏长视频、选择器分页

角色库导入打标签并支持筛选；模特库与全能创作角色/商品选择改为每页 20 条分页。临时限制成片 ≤60 秒，过滤对话里的超长时长选项，并收拢本地全能创作与后台用户相关修复。

core/frontend/src/omni-session-page.css

@@ -303,12 +303,21 @@
   justify-content: center;
 }
 
-/* 小云雀式跟随追问：答案留在问题附近，尺寸不抢占对话空间。 */
+/* 小云雀式跟随追问：与上方选项同宽；与选项拉开一点距离。 */
+.omni-reply-guide:has(.omni-chat-choice-actions) {
+  display: flex;
+  flex-direction: column;
+  align-items: stretch;
+  gap: 14px;
+}
+
 .omni-chat-question-input {
   display: flex;
   align-items: center;
   gap: 6px;
-  width: min(300px, 100%);
+  width: 100%;
+  max-width: none;
+  box-sizing: border-box;
 }
 
 .omni-chat-question-input .input {
@@ -1247,6 +1256,10 @@
   padding: 10px;
 }
 
+.omni-result-card.has-many .omni-result-media.is-grid {
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+}
+
 .omni-result-tile {
   position: relative;
   margin: 0;
@@ -1433,6 +1446,10 @@
     flex-direction: column;
   }
 
+  .omni-result-card.has-many .omni-result-media.is-grid {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+
   .omni-direction-custom button {
     width: 100%;
   }
@@ -2228,7 +2245,8 @@
   position: absolute;
   bottom: calc(100% + 10px);
   left: 0;
-  z-index: 40;
+  /* 高于顶栏(--z-topbar:50)，避免往上展开时被 sticky 顶栏盖住（同层仍可能被裁，配合 is-preview-below） */
+  z-index: calc(var(--z-topbar) + 20);
   width: 244px;
   display: grid;
   gap: 10px;
@@ -2250,6 +2268,18 @@
   transform: translateY(0);
 }
 
+/* 靠近顶栏时改为向下展开 */
+.omni-mention-chip.has-thumb.is-preview-below .omni-mention-hover-preview {
+  top: calc(100% + 10px);
+  bottom: auto;
+  transform: translateY(-4px);
+}
+
+.omni-mention-chip.has-thumb.is-preview-below:hover .omni-mention-hover-preview,
+.omni-mention-chip.has-thumb.is-preview-below:focus-within .omni-mention-hover-preview {
+  transform: translateY(0);
+}
+
 .omni-mention-chips.is-user .omni-mention-hover-preview {
   right: 0;
   left: auto;
@@ -2408,7 +2438,7 @@
   flex-wrap: wrap;
   align-items: center;
   gap: 8px 10px;
-  color: #5c6570;
+  color: var(--black-alpha-64);
 }
 
 .omni-chat-bubble.is-reasoning {
@@ -2416,7 +2446,13 @@
   flex-direction: column;
   align-items: stretch;
   gap: 8px;
-  color: #5c6570;
+  color: var(--black-alpha-64);
+}
+
+/* 规划过程不是一行 loading：给过程本身足够横向空间，历史在内部滚动。 */
+.omni-chat-row.agent.is-live .omni-chat-bubble.is-reasoning {
+  width: min(620px, calc(100% - 44px));
+  max-width: min(620px, calc(100% - 44px));
 }
 
 .omni-think-head {
@@ -2424,20 +2460,48 @@
   align-items: center;
   gap: 8px;
   font-size: 13px;
-  color: #5c6570;
+  color: var(--black-alpha-64);
 }
 
-.omni-think-text {
+.omni-think-log {
+  display: grid;
+  gap: 8px;
+  max-height: 248px;
+  overflow-y: auto;
+  padding: 10px 8px 2px 0;
+  border-top: 1px solid var(--border-faint);
+  scrollbar-gutter: stable;
+}
+
+.omni-think-log-row {
+  padding-left: 10px;
+  border-left: 1px solid var(--border-muted);
+}
+
+.omni-think-log-row.is-current {
+  position: relative;
+  border-left-color: transparent;
+}
+
+.omni-think-log-row.is-current::before {
+  content: "";
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  left: -1px;
+  width: 2px;
+  border-radius: var(--r-sm);
+  background: var(--klein);
+  animation: omniCurrentStepPulse 1.2s ease-in-out infinite;
+}
+
+.omni-think-log-row p {
   margin: 0;
+  min-width: 0;
+  color: var(--black-alpha-64);
   font-size: 12px;
   line-height: 1.65;
-  color: #8a93a0;
-  white-space: pre-wrap;
   word-break: break-word;
-  max-height: 168px;
-  overflow-y: auto;
-  border-left: 1px solid rgba(15, 23, 42, 0.08);
-  padding-left: 10px;
 }
 
 .omni-typing {
@@ -2463,6 +2527,11 @@
   40% { opacity: 1; transform: translateY(-2px); }
 }
 
+@keyframes omniCurrentStepPulse {
+  0%, 100% { opacity: .32; }
+  50% { opacity: 1; }
+}
+
 @keyframes omniSendPulse {
   0%, 100% {
     background: #5b6572;