Blog: publish trilingual posts 2-4 in EN/MK/SI from source content

Build full articles for "Learning Slovene", "Study in North Macedonia
(government scholarship)" and "Ad futura scholarship" in all three languages,
split from the trilingual Markdown sources (no machine translation). Dates
registered in ARTICLE_DATES and SEO re-injected per page. Blog index cards for
these already existed and now point to real content instead of stubs.

Hero images are placeholders pending topical photos.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tools/seo_inject.py

@@ -44,6 +44,9 @@ HOME_CRUMB = {"en": "Home", "mk": "Дома", "si": "Domov"}
 ARTICLE_DATES = {
     "blog/how-to-open-slovenian-bank-account": {"modified": "2026-08-01"},
     "blog/where-to-search-for-accommodation-in-slovenia": {"published": "2026-08-03"},
+    "blog/learning-slovene-where-to-start": {"published": "2026-07-28"},
+    "blog/study-in-north-macedonia-government-scholarship-2026-2027": {"published": "2026-07-30"},
+    "blog/ad-futura-scholarship-slovenia-2026": {"published": "2026-08-02"},
     "news/proof-of-means-updated-2026": {"published": "2026-08-01"},
     "projects/humanitarian-tournament-in-maribor": {"published": "2025-04-05"},
     "projects/in-memory-of-frosina-kulakova": {"published": "2025-02-08"},