feat(about): update narrative and capabilities with developer tone

Replaced formal descriptions with more natural developer voice for
about page narrative and core capabilities sections.

src/lib/data/personal-brand.ts

@@ -267,35 +267,35 @@ export const brandTimeline: TimelineItem[] = [
 
 export const aboutNarrative: LocalizedText[] = [
   {
-    en: 'I focus on complex business systems where architecture and long-term maintainability are critical.',
-    zh: '我长期专注复杂业务系统，核心关注点是架构质量和长期可维护性。',
+    en: '8 years of frontend experience, mostly working on complex business systems — fintech, enterprise tools, and products with heavy interactions. I care about code that survives the first release.',
+    zh: '做了 8 年前端，大部分时间在跟复杂业务系统打交道——金融、企业后台、交互密集型产品。代码要能经得起后续迭代，这是我关心的。',
   },
   {
-    en: 'My strengths combine frontend architecture, engineering processes, and cross-role collaboration.',
-    zh: '我的优势在于前端架构能力、工程化推进能力和跨角色协作。',
+    en: 'Spent a lot of time building from scratch and extracting reusable patterns. Led frontend architecture for 3+ core products, set up internal component libraries, and pushed engineering standards across teams.',
+    zh: '从 0 到 1 搭过不少项目，也从业务里抽过不少通用组件。带过 3+ 核心产品的前端架构，做过内部组件库，推过团队工程规范。',
   },
   {
-    en: 'This website is my long-term knowledge base for projects, methods, and practical lessons.',
-    zh: '这个网站会持续沉淀项目案例、工作方法与可复用经验。',
+    en: 'Recently been bringing AI into my workflow — not as a buzzword, but as a real productivity tool for code reading, analysis, and documentation. It actually saves time.',
+    zh: '这两年在把 AI 融入日常开发流程，不是赶潮流，是真的拿它来帮忙读代码、分析逻辑、写文档。确实省时间。',
   },
 ];
 
 export const aboutCapabilities: LocalizedText[] = [
   {
-    en: 'Complex frontend system architecture and module governance',
-    zh: '复杂前端系统架构与模块治理',
+    en: 'Frontend architecture & module design for complex products',
+    zh: '复杂产品的模块设计与前端架构',
   },
   {
-    en: 'Data visualization and real-time interaction system implementation',
-    zh: '数据可视化与实时交互系统开发',
+    en: 'Component libraries & engineering standardization (Vite / Webpack)',
+    zh: '组件封装与工程化体系建设',
   },
   {
-    en: 'From-zero-to-one product frontend setup and engineering standardization',
-    zh: '从 0 到 1 前端体系建设与工程规范落地',
+    en: 'Complex interactions, data visualization, and real-time systems',
+    zh: '复杂交互、可视化与实时数据处理',
   },
   {
-    en: 'AI-assisted code understanding, documentation, and troubleshooting',
-    zh: 'AI 辅助代码理解、文档沉淀与问题排查',
+    en: 'AI-enhanced development workflow & cross-team collaboration',
+    zh: 'AI 提效开发与跨角色协作',
   },
 ];