feat(i18n): complete native translations for every Docsy locale

AGENTS.md

@@ -46,7 +46,9 @@ make -C ../oink.pgsty.com dev
 
 ## Theme contracts
 
-- Hugo Extended 0.160.1 is the compatibility floor.
+- Hugo Extended 0.160.1 is the compatibility floor. On 0.160.x, configure a
+  non-default generic `zh` language alongside the regional Chinese catalogs
+  with `locale: zh-CN`; bare `locale: zh` works there from 0.161 onward.
 - Run checkers with `--panicOnWarning` when they build Hugo output. Ordinary
   editing may warn and fall back; publishing gates turn warnings into failures.
 - Keep generated `public/`, `resources/`, locks, and caches out of Git.

CHANGELOG.md

@@ -5,6 +5,18 @@ All notable changes to OINK are documented here. The project follows
 
 ## [Unreleased]
 
+### Added
+
+- Every locale name shipped by Docsy now has a complete native OINK interface
+  catalog at the same level as English and Chinese: 31 upstream-compatible
+  locale files plus generic `zh`, with the same 192 keys in each. The owning
+  checker pins that locale set and rejects missing, extra, duplicate, nested,
+  placeholder-drifted, hidden-bidi, and unreviewed English-fallback values;
+  the old mechanical `--sync` fallback path is gone. The runtime check uses
+  the concrete `zh-CN` locale for non-default generic `zh`, preserving the
+  0.160.1 floor; Hugo 0.160.x cannot resolve bare `locale: zh` in that
+  base-plus-regional-catalog configuration, while 0.161.0 and newer can.
+
 ### Fixed
 
 - Cached sidebars now key reusable markup by language, navigation root, and the

CLAUDE.md

@@ -123,8 +123,12 @@ Use Hugo Extended 0.160.1 for the compatibility floor. Output checkers accept
 - CSS uses `td-` classes, `data-td-*`, `--td-*`, logical properties, and covers
   RTL, print, forced colors, reduced motion, narrow screens, and long tokens.
   Author markers such as `.steps` and `.cards` remain unprefixed.
-- Keep all 32 locale files schema-identical. Add user-visible strings to every
-  locale; `bin/check-i18n.py --sync` may add mechanical English fallbacks.
+- Keep all 32 locale files schema-identical and natively translated. Add every
+  user-visible string to every locale, preserve its runtime placeholders, and
+  run `bin/check-i18n.py`; the checker never manufactures English fallbacks.
+  On the 0.160.x floor, a non-default generic `zh` language alongside the
+  regional Chinese catalogs must use `locale: zh-CN`; bare `locale: zh` works
+  in that configuration on Hugo 0.161.0 or newer.
 - Override the narrowest partial. Do not merge base templates when that changes
   Hugo lookup precedence or copy a full shell for one feature.
 - `public/` and `resources/` are generated and ignored. Never commit them.

README.md

@@ -205,7 +205,12 @@ assuming drop-in compatibility.
 | Hugo | **Extended 0.160.1 or newer**; CI currently pins 0.165.0 |
 | Go | 1.27 or newer for Hugo Module resolution; not needed when using an offline archive or submodule |
 | Node.js | Not required to build or run an OINK site |
-| Locales | Reviewed OINK interface text for English, Simplified Chinese, and Traditional Chinese; inherited Docsy locales retain English fallback for newer labels |
+| Locales | Native OINK interface text for all 31 locale names shipped by Docsy, plus generic `zh`; every bundle owns the same 192-key schema with no English placeholder blocks |
+
+On Hugo 0.160.x, when generic `zh` is a non-default language and the regional
+Chinese catalogs are present, configure it with the concrete `locale: zh-CN`,
+as OINK's examples do. Hugo 0.161.0 and newer also resolve bare `locale: zh`
+in that configuration.
 
 ## Community and releases