Publish the two CodeIgniter draft posts (EN+ZH) with OG + banner art

- migrating-codeigniter-iis-to-openlitespeed (engineering): the two fatal errors
  IIS + SSO had been hiding (env() called from Constants.php; parent::__construct
  in a controller) — both only surfaced on the first unauthenticated request
- upgrading-codeigniter-46-to-47 (notes): the two undefined config properties the
  official upgrade guide cannot warn about (Config\App::$permittedURIChars,
  Config\Format::$jsonEncodeDepth)
- both flipped draft:true -> false, pubDate 2026-09-20 -> 2026-09-27 (real publish date)
- generated 1200x630 OG cards + 1600x900 banners for both slugs
- verified before commit: EN+ZH pages build, language switch links both ways,
  listing order stays monotonic on /posts, /zh and the homepage, banner terminal
  panel centred (gapAbove 102 / gapBelow 104) with no overflow

src/content/posts/zh/upgrading-codeigniter-46-to-47.md

@@ -1,12 +1,12 @@
 ---
 title: "CodeIgniter 4.6 升级到 4.7：官方指南没说到的破坏性变更"
 description: "CodeIgniter 4.7 官方升级指南列了八项破坏性变更。真正让我应用致命崩溃的那两项不在里面——而且它们属于同一类问题。"
-pubDate: 2026-09-20
+pubDate: 2026-09-27
 category: notes
 tags: [codeigniter, php, upgrade, composer, breaking-changes, config, framework]
 ogImage: /og/upgrading-codeigniter-46-to-47.png
 banner: /banners/upgrading-codeigniter-46-to-47.png
-draft: true
+draft: false
 ---
 
 我把一个 CodeIgniter 4 应用从 4.6.3 升到了 4.7.4。我读了升级指南，把每一项文档化的破坏性变更都对着代码库核了一遍，确认没有一项影响到我。然后我跑了一下应用，它致命崩溃了两次。