feat: add user input history MCP and rebuild release

server.js

@@ -5475,6 +5475,18 @@ function clampMcpLimit(value) {
   return Math.max(1, Math.min(100, parsed));
 }
 
+function clampUserInputsLimit(value) {
+  const parsed = Number.parseInt(String(value || ''), 10);
+  if (!Number.isFinite(parsed)) return 15;
+  return Math.max(1, Math.min(50, parsed));
+}
+
+function clampUserInputsMaxChars(value) {
+  const parsed = Number.parseInt(String(value || ''), 10);
+  if (!Number.isFinite(parsed)) return 1000;
+  return Math.max(1, Math.min(1000, parsed));
+}
+
 function listConversationSummaries(args = {}, sourceSessionId = '') {
   reconcilePendingCrossConversationReplies();
   const scope = args.scope === 'children' ? 'children' : 'all';
@@ -5532,6 +5544,90 @@ function listConversationSummaries(args = {}, sourceSessionId = '') {
   };
 }
 
+function listUserInputHistory(args = {}, sourceSessionId = '') {
+  const hasExplicitConversationId = Object.prototype.hasOwnProperty.call(args, 'conversationId');
+  let conversationId;
+  if (hasExplicitConversationId) {
+    const rawConversationId = String(args.conversationId || '').trim();
+    const sanitizedConversationId = sanitizeId(rawConversationId);
+    if (!sanitizedConversationId || sanitizedConversationId !== rawConversationId) {
+      return mcpToolError('invalid_conversation_id', 'conversationId 无效。', {
+        conversationId: rawConversationId || null,
+      });
+    }
+    conversationId = sanitizedConversationId;
+  } else {
+    conversationId = sanitizeId(sourceSessionId || '');
+    if (!conversationId) {
+      return mcpToolError('missing_source_conversation', '缺少来源对话 ID。');
+    }
+  }
+
+  const session = loadSession(conversationId);
+  if (!session) {
+    return mcpToolError('conversation_not_found', '目标对话不存在。', {
+      conversationId,
+    });
+  }
+
+  const requestedLimit = clampUserInputsLimit(args.limit);
+  const maxChars = clampUserInputsMaxChars(args.maxChars);
+  const userMessages = (Array.isArray(session.messages) ? session.messages : [])
+    .filter((message) => message?.role === 'user' && typeof message.content === 'string' && message.content.trim())
+    .map((message) => ({
+      messageId: message.id || message.messageId || null,
+      createdAt: message.createdAt || message.timestamp || null,
+      content: message.content,
+    }));
+  const candidates = userMessages.slice(-requestedLimit);
+  const items = [];
+  let remainingChars = maxChars;
+  let totalChars = 0;
+  let budgetLimited = false;
+
+  for (let index = candidates.length - 1; index >= 0; index -= 1) {
+    if (remainingChars <= 0) {
+      budgetLimited = true;
+      break;
+    }
+
+    const candidate = candidates[index];
+    const codePoints = Array.from(candidate.content);
+    const originalChars = codePoints.length;
+    const truncated = originalChars > remainingChars;
+    const content = truncated ? codePoints.slice(0, remainingChars).join('') : candidate.content;
+    const contentChars = truncated ? remainingChars : originalChars;
+
+    items.push({
+      messageId: candidate.messageId,
+      createdAt: candidate.createdAt,
+      content,
+      contentChars,
+      originalChars,
+      truncated,
+    });
+    totalChars += contentChars;
+    remainingChars -= contentChars;
+
+    if (truncated) {
+      budgetLimited = true;
+      break;
+    }
+  }
+
+  items.reverse();
+  return {
+    ok: true,
+    conversationId,
+    requestedLimit,
+    maxChars,
+    totalChars,
+    returnedCount: items.length,
+    hasMore: userMessages.length > candidates.length || budgetLimited || items.length < candidates.length,
+    items,
+  };
+}
+
 function normalizeMcpPromptText(value, maxChars) {
   if (value === null || value === undefined) return '';
   return truncateTextValue(String(value).trim(), maxChars, '...');
@@ -6296,6 +6392,8 @@ function callInternalMcpTool(tool, args, sourceSessionId, sourceHopCount) {
       return createCcwebDisplayImage(args, sourceSessionId);
     case 'ccweb_list_conversations':
       return listConversationSummaries(args, sanitizeId(sourceSessionId || ''));
+    case 'ccweb_list_user_inputs':
+      return listUserInputHistory(args, sourceSessionId);
     case 'ccweb_set_title':
       return setCurrentConversationTitle(args, sourceSessionId);
     case 'ccweb_create_conversation':