feat: 完善智能体图片聊天与会话恢复

- 增加私有图片上传、绑定、历史回显与生命周期清理

- 支持输入草稿恢复、图片交互和模型图片能力约束

- 修复旧脏会话幂等删除与前端会话恢复

easyflow-ui-admin/app/src/views/ai/agents/components/AgentInspectorPanel.vue

@@ -42,6 +42,12 @@ const selectedKnowledge = computed(() => {
 
 const activeBaseTab = ref<'basic' | 'interaction'>('basic');
 const interactionForm = ref<InstanceType<typeof AgentInteractionForm>>();
+const selectedModel = computed(() =>
+  props.models.find((item) => item.value === String(props.state.agent.modelId)),
+);
+const tryoutImageEnabled = computed(() =>
+  Boolean(selectedModel.value?.raw?.supportImage),
+);
 
 function isInteractionIssue(issue?: AgentValidationIssue) {
   return issue?.field?.startsWith('interaction.');
@@ -95,6 +101,7 @@ const selectedToolOptions = computed(() => {
     <template v-if="state.panelMode === 'tryout'">
       <AgentTryoutPanel
         :agent="state.agent"
+        :image-enabled="tryoutImageEnabled"
         :tool-bindings="state.toolBindings"
         :knowledge-bindings="state.knowledgeBindings"
         @close="emit('closeTryout')"