feat(migration): complete WordPress migration and UX refinements

- Migrate historical posts, localized assets, and 103 comments
- Colocate media into posts/<slug>/images/ and remove wp-content
- Add native bilingual support for ai-can-change post (English default, /zh variant)
- Support clean taxonomy routing (/category/:category and /tag/:tag)
- Dynamically populate categories and tags in sitemap.xml
- Fix header scroll padding/margin offsets for anchor and reference links
- Constrain image and media widths to prevent content overflow
- Redesign homepage recent posts to 4 compact editorial cards
- Restore valid binary favicon.ico and high-res icon assets
- Remove placeholder content and sample test comments

server/routes/blogs.js

@@ -2,9 +2,11 @@ const express = require('express');
 const router = express.Router();
 const contentService = require('../services/content');
 
-router.get('/blogs', (req, res) => {
+function renderBlogListing(req, res, filterType, filterVal) {
   let posts = contentService.getAllPosts();
-  const { category, tag, page } = req.query;
+  const category = filterType === 'category' ? filterVal : req.query.category;
+  const tag = filterType === 'tag' ? filterVal : req.query.tag;
+  const page = req.query.page;
 
   let activeFilter = null;
 
@@ -29,7 +31,7 @@ router.get('/blogs', (req, res) => {
   const taxonomy = contentService.getTaxonomy();
 
   res.render('pages/blogs', {
-    title: activeFilter ? `Blogs - ${activeFilter.type}: ${activeFilter.value}` : 'Blogs',
+    title: activeFilter ? `${activeFilter.value} - ${activeFilter.type === 'category' ? 'Category' : 'Tag'} - ${res.locals.site.title}` : `Blogs - ${res.locals.site.title}`,
     posts: paginatedPosts,
     currentPage,
     totalPages,
@@ -37,6 +39,11 @@ router.get('/blogs', (req, res) => {
     activeFilter,
     taxonomy
   });
-});
+}
+
+router.get('/blogs', (req, res) => renderBlogListing(req, res));
+router.get('/category/:category', (req, res) => renderBlogListing(req, res, 'category', req.params.category));
+router.get('/tag/:tag', (req, res) => renderBlogListing(req, res, 'tag', req.params.tag));
+router.get('/tags/:tag', (req, res) => renderBlogListing(req, res, 'tag', req.params.tag));
 
 module.exports = router;