feat: 支持 MCP 图片内联渲染

server.js

@@ -12,7 +12,7 @@ const { createCodexAppRuntime } = require('./lib/codex-app-runtime');
 const { createCodexRolloutStore } = require('./lib/codex-rollouts');
 const { createSessionSearchIndex } = require('./lib/session-search-index');
 const { createUsageStatisticsIndex, UsageStatisticsError } = require('./lib/usage-statistics');
-const { TOOLS: CCWEB_MCP_TOOLS } = require('./lib/ccweb-mcp-server');
+const { TOOLS: CCWEB_MCP_TOOLS, prepareImagePayload } = require('./lib/ccweb-mcp-server');
 const CCWEB_MCP_SERVER_INFO = { name: 'ccweb', version: '1.0.0' };
 
 if (process.argv.includes('--ccweb-mcp-server')) {
@@ -4902,6 +4902,43 @@ function createCcwebPromptUser(args = {}, sourceSessionId = '') {
   };
 }
 
+function createCcwebDisplayImage(args = {}, sourceSessionId = '') {
+  const sourceId = sanitizeId(sourceSessionId || '');
+  const payload = prepareImagePayload(args);
+  if (!payload.ok) return payload;
+
+  const now = new Date();
+  let attachment = null;
+  if (payload.image.data) {
+    const buffer = Buffer.from(payload.image.data, 'base64');
+    const id = crypto.randomUUID();
+    const filename = safeFilename(payload.image.title || payload.image.alt || `image${extFromMime(payload.image.mimeType)}`);
+    const dataPath = attachmentDataPath(id, extFromMime(payload.image.mimeType));
+    const meta = {
+      id,
+      kind: 'image',
+      filename,
+      mime: payload.image.mimeType,
+      size: buffer.length,
+      createdAt: now.toISOString(),
+      expiresAt: new Date(now.getTime() + ATTACHMENT_TTL_MS).toISOString(),
+      path: dataPath,
+    };
+    try {
+      fs.writeFileSync(dataPath, buffer);
+      saveAttachmentMeta(meta);
+    } catch (err) {
+      try { if (fs.existsSync(dataPath)) fs.unlinkSync(dataPath); } catch {}
+      return mcpToolError('image_store_failed', `保存图片失败: ${err.message}`);
+    }
+    attachment = normalizeMessageAttachments([meta])[0] || null;
+  }
+  const responseImage = payload.image.data
+    ? { type: 'image', mimeType: payload.image.mimeType, alt: payload.image.alt, title: payload.image.title, size: attachment?.size || 0 }
+    : payload.image;
+  return { ok: true, image: responseImage, attachment, status: 'ready', sourceConversationId: sourceId || null };
+}
+
 function findCcwebPromptMessage(session, promptId) {
   const normalizedPromptId = String(promptId || '').trim();
   if (!normalizedPromptId || !Array.isArray(session?.messages)) return null;
@@ -5430,6 +5467,8 @@ function completeCrossConversationReply(requestId, entry = {}, targetSession = n
 
 function callInternalMcpTool(tool, args, sourceSessionId, sourceHopCount) {
   switch (tool) {
+    case 'ccweb_display_image':
+      return createCcwebDisplayImage(args, sourceSessionId);
     case 'ccweb_list_conversations':
       return listConversationSummaries(args, sanitizeId(sourceSessionId || ''));
     case 'ccweb_set_title':