Feat/language detection (#31)

* feat: implementation of language detection

* run utility scripts in tasks

* fix: addiitonal fixes for background utilities

* feat: toast() also for utility scripts

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Co-authored-by: hugo <hugoms@me.com>

src/main/database/schema.ts

@@ -34,6 +34,7 @@ export const posts = sqliteTable('posts', {
   tags: text('tags'), // JSON array stored as text
   categories: text('categories'), // JSON array stored as text
   templateSlug: text('template_slug'), // Optional user template override for this post
+  language: text('language'), // Optional per-post language override (ISO code, e.g. 'en', 'de')
   // Legacy columns (kept for migration compatibility, no longer written)
   publishedTitle: text('published_title'),
   publishedContent: text('published_content'),