Kunthawat Greethong 9ed0abb5d4 fix(seo): fix hardcoded dealplustech.co.th URLs in JSON-LD
The JSON-LD Product schema in 6 product pages had hardcoded
URLs to dealplustech.co.th, but astro.config.mjs configures the
site as dealplustech.com. When this project replaces the old
site, those URLs would 404.

Changes:
- Replace `https://dealplustech.co.th/images/...` with relative
  `/images/...` paths (resolved by Astro at build time)
- Replace `https://dealplustech.co.th/<page>` with
  `https://dealplustech.com/<page>` (canonical domain)
- Special case: vineman schema `image` referenced an .svg that
  doesn't exist locally — switch to the .jpg version that does
  (also used by the page body) at
  /images/products-raw/vineman/ระบบรั้วไวน์แมน-Vineman-e1613286324569-1024x880.jpg

Files changed:
- realflex.astro
- วาล์ว-valve.astro
- water-treatment.astro
- เครื่องเชื่อม-hdpe.astro
- ระบบรั้วไวน์แมน.astro
- เทอร์โมเบรค-thermobreak.astro
2026-06-04 19:07:20 +07:00
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