feat: AI 对话支持 A2UI 表单/审查/图表与 Agent 工具

apps/admin/src/components/AiChat/style.css

@@ -207,10 +207,68 @@
   padding: 20px clamp(16px, 4vw, 48px);
 }
 
+.ai-chat-messages .ant-bubble {
+  position: relative;
+}
+
 .ai-chat-messages .ant-bubble-content {
   max-width: min(100%, 680px);
 }
 
+.ai-chat-messages .ant-bubble-extra {
+  position: absolute;
+  top: 2px;
+  right: 10px;
+  z-index: 2;
+}
+
+.ai-chat-hover-actions {
+  display: inline-flex;
+  align-items: center;
+  gap: 2px;
+  padding: 3px;
+  background: rgba(255, 255, 255, 0.94);
+  border: 1px solid #eceef2;
+  border-radius: 8px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
+  opacity: 0;
+  transform: translateY(-3px);
+  transition:
+    opacity 0.15s ease,
+    transform 0.15s ease;
+  pointer-events: none;
+}
+
+.ai-chat-messages .ant-bubble:hover .ai-chat-hover-actions,
+.ai-chat-hover-actions:focus-within {
+  opacity: 1;
+  transform: translateY(0);
+  pointer-events: auto;
+}
+
+.ai-chat-hover-action {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 26px;
+  height: 26px;
+  border-radius: 6px;
+  color: #5f6672;
+  font-size: 14px;
+  cursor: pointer;
+  user-select: none;
+}
+
+.ai-chat-hover-action:hover {
+  background: #f0f2f5;
+  color: #1f2329;
+}
+
+.ai-chat-hover-action.is-danger:hover {
+  background: #fff1f0;
+  color: #cf1322;
+}
+
 .ai-chat-user-text {
   max-width: 100%;
   overflow-wrap: anywhere;
@@ -221,6 +279,10 @@
   max-width: 100%;
 }
 
+.ai-chat-user-edit {
+  width: min(520px, 100%);
+}
+
 .ai-chat-answer {
   width: 100%;
   min-width: 0;