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/composables/useAgentTryoutStream.ts

@@ -1,19 +1,24 @@
-import type {ServerSentEventMessage} from 'fetch-event-stream';
+import type { ServerSentEventMessage } from 'fetch-event-stream';
 
 import type {
+  ChatImageAttachment,
   ChatTimelineItem as ChatTimelineItemType,
   ChatTimelineMessageItem,
 } from '@easyflow/common-ui';
-import {ChatTimelineBuilder} from '@easyflow/common-ui';
+import { ChatTimelineBuilder } from '@easyflow/common-ui';
 
-import type {AgentInfo, AgentKnowledgeBinding, AgentToolBinding,} from '../types';
+import type {
+  AgentInfo,
+  AgentKnowledgeBinding,
+  AgentToolBinding,
+} from '../types';
 
-import {ref} from 'vue';
+import { ref } from 'vue';
 
-import {sseClient} from '#/api/request';
+import { sseClient } from '#/api/request';
 
-import {clearAgentDraftSession} from '../api';
-import {useAgentTryoutRawRounds} from './useAgentTryoutRawRounds';
+import { clearAgentDraftSession } from '../api';
+import { useAgentTryoutRawRounds } from './useAgentTryoutRawRounds';
 
 function resolveDraftSessionId(agent: AgentInfo) {
   return `agent-draft-${agent.id || agent.localId || 'unsaved'}`;
@@ -99,8 +104,13 @@ export function useAgentTryoutStream() {
     timelineItems.value = rawRounds?.buildTimelineItems() || [];
   }
 
-  function syncDraftContext(payload: DraftRuntimeContext, restore = false) {
-    const sessionId = resolveDraftSessionId(payload.agent);
+  function syncDraftContext(
+    payload: DraftRuntimeContext,
+    restore = false,
+    requestedSessionId?: string,
+  ) {
+    const sessionId =
+      requestedSessionId || resolveDraftSessionId(payload.agent);
     const sessionChanged = activeSessionId !== sessionId;
     activeSessionId = sessionId;
     if (!rawRounds || sessionChanged) {
@@ -206,26 +216,44 @@ export function useAgentTryoutStream() {
 
   async function runDraft(payload: {
     agent: AgentInfo;
+    images?: ChatImageAttachment[];
+    imageUploadIds?: string[];
     knowledgeBindings: AgentKnowledgeBinding[];
+    onAccepted?: () => void | Promise<void>;
     prompt: string;
+    sessionId?: string;
     toolBindings: AgentToolBinding[];
   }) {
-    syncDraftContext(payload);
+    syncDraftContext(payload, false, payload.sessionId);
     if (!rawRounds) {
       return;
     }
-    activeRoundId = rawRounds.createRound(payload.prompt);
+    activeRoundId = rawRounds.createRound(payload.prompt, payload.images);
     rebuildTimeline();
     loading.value = true;
     userStopped = false;
+    let accepted = false;
     await sseClient.post(
       '/api/v1/agent/chat/draft',
       {
-        ...payload,
+        agent: payload.agent,
+        imageUploadIds: payload.imageUploadIds,
+        knowledgeBindings: payload.knowledgeBindings,
+        prompt: payload.prompt,
         sessionId: activeSessionId,
+        toolBindings: payload.toolBindings,
       },
       {
-        onMessage: handleMessage,
+        onMessage: (message) => {
+          const envelope = resolveEnvelope(parseEventData(message));
+          const domain = String(envelope.domain || '').toUpperCase();
+          const type = String(envelope.type || '').toUpperCase();
+          if (!accepted && domain === 'SYSTEM' && type === 'INPUT_ACCEPTED') {
+            accepted = true;
+            void payload.onAccepted?.();
+          }
+          handleMessage(message);
+        },
         onError: (error) => {
           if (shouldIgnoreStoppedError(error)) {
             return;
@@ -257,8 +285,12 @@ export function useAgentTryoutStream() {
 
   async function sendDraft(payload: {
     agent: AgentInfo;
+    images?: ChatImageAttachment[];
+    imageUploadIds?: string[];
     knowledgeBindings: AgentKnowledgeBinding[];
+    onAccepted?: () => void | Promise<void>;
     prompt: string;
+    sessionId?: string;
     toolBindings: AgentToolBinding[];
   }) {
     await runDraft(payload);