Separate agent tuning from model setup

ai_knowledge_base_v2/apps/admin-web/src/styles.css

@@ -241,18 +241,128 @@ textarea {
   width: 100%;
 }
 
+.agent-workbench {
+  display: grid;
+  grid-template-columns: minmax(520px, 1fr) minmax(360px, 420px);
+  gap: 18px;
+  align-items: start;
+}
+
+.agent-config-panel,
+.agent-preview-panel {
+  padding: 18px;
+  border: 1px solid #dfe8e5;
+  border-radius: 8px;
+  background: #ffffff;
+}
+
+.agent-config-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 12px 14px;
+}
+
+.agent-config-panel .el-select,
+.agent-config-panel .el-input-number,
+.agent-config-panel .el-input {
+  width: 100%;
+}
+
+.agent-preview-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+  margin-bottom: 12px;
+}
+
+.agent-preview-head h3 {
+  margin: 0;
+  font-size: 17px;
+}
+
+.agent-preview-head span {
+  overflow: hidden;
+  color: #667a73;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.agent-preview-chat {
+  height: 560px;
+  overflow: auto;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding-right: 4px;
+}
+
+.agent-preview-message {
+  max-width: 92%;
+  padding: 10px 12px;
+  border: 1px solid #dfe8e5;
+  border-radius: 8px;
+  background: #f8fbfa;
+}
+
+.agent-preview-message.user {
+  align-self: flex-end;
+  border-color: #cde7df;
+  background: #e9f5f1;
+}
+
+.agent-preview-message strong {
+  display: block;
+  margin-bottom: 6px;
+  color: #0f735d;
+  font-size: 12px;
+}
+
+.agent-preview-message pre {
+  margin: 0;
+  white-space: pre-wrap;
+  word-break: break-word;
+  font-family: inherit;
+  line-height: 1.6;
+}
+
 .actions {
   margin-top: 12px;
 }
 
 .record-filter {
-  display: grid;
-  grid-template-columns: minmax(260px, 1.4fr) 140px 150px 360px 72px 72px 72px;
+  display: flex;
+  flex-wrap: wrap;
   gap: 10px;
-  align-items: center;
+  align-items: flex-start;
   margin-bottom: 14px;
 }
 
+.record-filter > .el-input {
+  width: 280px;
+}
+
+.record-filter > .el-input-number {
+  width: 140px;
+}
+
+.record-filter > .el-select {
+  width: 150px;
+}
+
+.record-date-range {
+  width: 580px !important;
+  max-width: 100%;
+  flex: 0 0 580px;
+}
+
+.record-filter-actions {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+}
+
 .chat-summary {
   display: grid;
   grid-template-columns: repeat(4, minmax(0, 1fr));