fix: changelog shows new + total counts per section (#49)

Co-authored-by: joey <joey@joeydeMacBook-Air.local>

Author: joeylee12629-star

changelog/2026-04-15.md

@@ -1,36 +1,36 @@
 ---
 date: "2026-04-15"
-title: "Guide V3 Launch — 15 Articles"
+title: "Guide V3 Launch — +15 New, 15 Total"
 ---
 
-# 2026-04-15 — 15 Articles Total
+# 2026-04-15 — +15 New · 15 Total
 
-## Getting Started (3)
+## Getting Started (+3 new, 3 total)
 
 - [What is a Harness?](/guide/what-is-harness)
 - [Your First Harness](/guide/your-first-harness)
 - [Harness vs. Framework](/guide/harness-vs-framework)
 
-## Core Concepts (4)
+## Core Concepts (+4 new, 4 total)
 
 - [Agentic Loop](/guide/agentic-loop)
 - [Tool System](/guide/tool-system)
 - [Memory & Context](/guide/memory-and-context)
 - [Guardrails](/guide/guardrails)
 
-## Practice (5)
+## Practice (+5 new, 5 total)
 
 - [Context Engineering](/guide/context-engineering)
 - [Sandbox](/guide/sandbox)
 - [Skill System](/guide/skill-system)
 - [Sub-Agent](/guide/sub-agent)
 - [Error Handling](/guide/error-handling)
 
-## Reference (2)
+## Reference (+2 new, 2 total)
 
 - [Implementation Comparison](/guide/comparison)
 - [Glossary](/guide/glossary)
 
-## Showcase (1)
+## Showcase (+1 new, 1 total)
 
 - [Shipping Our Windows Client](/guide/nexu-windows-packaging)

zh-changelog/2026-04-15.md

@@ -1,36 +1,36 @@
 ---
 date: "2026-04-15"
-title: "Guide V3 上线 — 共 15 篇"
+title: "Guide V3 上线 — 新增 15 篇，累计 15 篇"
 ---
 
-# 2026-04-15 — 累计 15 篇
+# 2026-04-15 — 新增 15 篇 · 累计 15 篇
 
-## 入门 (3)
+## 入门（新增 3，累计 3）
 
 - [什么是 Harness？](/zh/guide/what-is-harness)
 - [你的第一个 Harness](/zh/guide/your-first-harness)
 - [Harness 与 Framework 的区别](/zh/guide/harness-vs-framework)
 
-## 核心概念 (4)
+## 核心概念（新增 4，累计 4）
 
 - [Agentic Loop](/zh/guide/agentic-loop)
 - [Tool 系统](/zh/guide/tool-system)
 - [Memory 与 Context](/zh/guide/memory-and-context)
 - [Guardrails](/zh/guide/guardrails)
 
-## 实战 (5)
+## 实战（新增 5，累计 5）
 
 - [Context 工程](/zh/guide/context-engineering)
 - [Sandbox](/zh/guide/sandbox)
 - [Skill 系统](/zh/guide/skill-system)
 - [Sub-Agent](/zh/guide/sub-agent)
 - [错误处理](/zh/guide/error-handling)
 
-## 参考 (2)
+## 参考（新增 2，累计 2）
 
 - [主流 Harness 实现对比](/zh/guide/comparison)
 - [术语表](/zh/guide/glossary)
 
-## 分享 (1)
+## 分享（新增 1，累计 1）
 
 - [Windows 客户端百亿 Token 实战](/zh/guide/nexu-windows-packaging)