add website

app/util/embeds.py

@@ -0,0 +1,23 @@
+from flask import render_template
+
+SITE_BASE_URL = "https://www.nexium.fit"
+SITE_NAME = "NEXIUM"
+
+def _TruncateText(text: str, limit: int = 300) -> str:
+    if not text:
+        return ""
+    text = " ".join(text.split())
+    if len(text) <= limit:
+        return text
+    return text[:limit - 1].rstrip() + "…"
+
+def RenderAssetEmbed(title: str, description: str, image_path: str, canonical_path: str, large_image: bool = True):
+    return render_template(
+        "__embed__.html",
+        og_title=title,
+        og_description=_TruncateText(description),
+        og_image=SITE_BASE_URL + image_path,
+        og_url=SITE_BASE_URL + canonical_path,
+        site_name=SITE_NAME,
+        twitter_card="summary_large_image" if large_image else "summary"
+    )