Capitalise descriptions and add trailing period

Normalise all post descriptions at import time: first character uppercased,
period appended if missing. Regenerated all 101 page bundles.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/import-posts.py

@@ -41,7 +41,12 @@ for idx, row in enumerate(matched, start=1):
     gen_img  = row["generated_image"].strip()
     slug     = gen_img.replace(".png", "")
     title    = row["title"].strip()
-    desc     = row["description"].strip().replace('"', '\\"')
+    desc     = row["description"].strip()
+    if desc:
+        desc = desc[0].upper() + desc[1:]
+        if not desc.endswith('.'):
+            desc += '.'
+    desc = desc.replace('"', '\\"')
     raw_cat  = row.get("category", "").strip()
     raw_tags = row.get("tags", "").strip()