Add Ukrainian (uk_UA) translation

[soundman666]

Adds a complete Ukrainian locale: i18n/locales/uk_UA.json.

Coverage

Translated against the en_US.json bundled with Msty Studio 2.9.8 (4981 keys), then topped up with the 8 keys that still exist in this repo's en_US.json but are gone from the app (shiftcutMode.*, modelHub.localModels.huggingfaceModels.*, conversationActions.exportConversation.successMessage, sharedService.serviceVersion.forceUpdate.forCuda131). The file is therefore a superset of both: 4989 keys, 0 missing against either side.

Checks run after generation

• Structure matches en_US.json exactly — no missing, extra or reshaped branches.
• All {placeholders} preserved per string (name and count).
• Pluralization segments (|) and random-variant separators (::, e.g. waitingMessage.*) kept at the same count as the source.
• Every @:link resolves to an existing key (0 dangling).
• Literal escapes such as {'{'} / {'.'} left untouched where they carry meaning.

Translation notes

• Most @:links were expanded into plain text. Ukrainian is an inflected language and vue-i18n interpolates the linked message in the nominative case, so Delete @:conversation.title would render as "Видалити Розмова" instead of "Видалити розмову". Links were kept where the nominative fits, or where they point at a service name whose value I could not resolve (@:localAIService, @:remoteToolsConnector.title, @:mlxService).
• Plurals keep the source's two forms, since the app uses vue-i18n's default rule (count === 1 ? 0 : 1); a third Slavic form would never be selected. Where the distinction is visible, the second form is phrased so it reads correctly for any number (Розмов: {count}).
• Product and feature names are left untranslated: Msty, Forge, Turnstile, Model Hub, Model Squad, Skills/Prompt/Persona/Context Studio, Aurum, Next Gen, Vapor, MLX, LLaMA.cpp.
• Consistent glossary: conversation → розмова, split → спліт, prompt → промт, preset → пресет, folder → тека, workspace → робоча область, knowledge stack → стек знань, chunk → фрагмент, toolset → набір інструментів, context shield → щит контексту.

One request

uk-UA is not in the app's compiled locale list (en-US, en-GB, de-DE, es-ES, fr-FR, it-IT, ja-JP, pt-BR, zh-CN, zh-TW, ru-RU, developer), so even after this is merged and published to next-assets.msty.studio/app/latest/locales/, the language will not show up in the picker. Could you add the uk-UA entry (name: Українська) to the app build as well?

Happy to fix anything up on request.